Skip to content
KickTyres
Toyota1997–2022 Critical issues documented

Toyota Harrier XU30: common faults & what to check

The XU30 is the Toyota Harrier built 2003–2013. It was sold here with the 2.4L petrol (2AZ-FE), 3.0L petrol (1MZ-FE), and 3.3 hybrid. Of the 26 faults documented for the Harrier, 20 apply to this generation, each with its symptoms, what to inspect and a typical repair cost. Free, no account needed.

Check this exact Toyota Harrier

  • Odometer history
  • Money owing
  • Reported stolen
  • Ownership history
  • Official NZ vehicle register data
  • NZ owned and operated

Type the plate for the free basics. The full record is a paid check from $13.49, one car at a time, no subscription.

No NZ plate yet, or buying in Australia? Pick the generation and engine and start a free check below. New to KickTyres? How the check works →

26

Documented faults

Critical

Most serious

$450–$1,500

Typical repair

53

Service milestones

You're looking at the XU30

3 engine variants are documented for this generation. Pick yours to narrow further, or keep reading for the generation as a whole.

Choose a different generation

Now narrow it to the engine

A 1.8 and a 2.4 of the same car do not fail the same way, so the faults below narrow to the engine as well as the year. Free, no account needed.

A 2003 Toyota Harrier is the XU30 generation (2003 to 2013).

Start your free check on this Toyota Harrier

No plate needed. You get the risk score, the buyer's checklist and the guided inspection for the exact car you picked above — not the whole nameplate.

Toyota Harrier XU30Engine not picked yet

Pick the engine above first: the Harrier came with 3, and without it the report has to show all of their faults. Pick the engine

Free. The paid plate check is separate, and stays optional.

Can't confirm for this car

Toyota Harrier · 2003

Narrowed to the year. No engine is recorded for this vehicle. Pick an engine to see which faults apply.

Tell us the engine, or check the engine code on the car, before relying on this.

  • No engine is recorded for this vehicle.

matched on year only

What to look out for

The checks worth doing on a Toyota Harrier before you hand over any money. Every documented fault is listed below, each with its own page.

  • Serious issue

    With the wheel hanging freely, grip the tyre at 6 and 12 o'clock and check for vertical play in the ball joint.

    See why

    Front Lower Control Arm Ball Joint Wear

    The front lower control arm ball joints on the MCU10 and MCU15 Harrier are a high-wear item that degrades progressively with age and mileage, particularly on New Zealand roads. The ball joint carries combined lateral and vertical loads at the wheel hub and its rubber boot splits over time, allowing grease loss and water ingress that accelerates wear. Excessive radial play causes imprecise steering and is a common Warrant of Fitness failure point in NZ. In severe cases a failed ball joint can separate, causing sudden loss of steering and wheel collapse. Toyota specifies a maximum radial play tolerance and calls for replacement when exceeded; press-in replacement joints are available from Toyota and aftermarket suppliers.

    What you would notice

    • Clunking or knocking from the front suspension when going over speed bumps or rough surfaces
    • Vague or imprecise steering with the vehicle wandering on straight roads
    • Uneven or rapid tyre wear on the front axle
    • Warrant of Fitness rejection for excessive ball joint play

    Typically $350–$800 to put right.

  • Costly issue

    Check the power steering reservoir level and whether the fluid is fresh or black.

    See why

    Power steering rack and high-pressure hose leaks (XU30, shared with Lexus RX330/350)

    The XU30 Harrier shares its hydraulic power steering with the Lexus RX330/RX350, which have a well-documented pattern of the steering rack's passenger-side high-pressure seal failing and leaking fluid into the tie-rod boot, plus the high-pressure hose leaking where the flexible hose crimps to the hard line behind the engine. Lexus issued a service bulletin covering leaking racks on 2004-2009 RX. Symptoms are whining steering, fluid loss and drips on the subframe; a seeping rack eventually loses assist. Rack replacement in NZ with a quality reconditioned unit is a four-figure job.

    What you would notice

    • Whining or groaning when turning, especially at low speed
    • Power steering fluid drips under the front of the car
    • Steering fluid reservoir needs topping up
    • One inner tie-rod boot wet or swollen with fluid

    Typically $1,200–$2,500 to put right.

  • Costly issue

    Look for the rubber sitting proud of the metal sleeve or showing full separation.

    See why

    Rear Suspension Trailing Arm and Lateral Link Bush Collapse

    The rear multi-link suspension on the MCU10/MCU15 Harrier uses multiple rubber bushes in the trailing arms and lateral links that deteriorate and collapse with age. New Zealand conditions — variable temperatures, UV exposure, and the age of these vehicles — accelerate rubber degradation. Collapsed bushes cause the rear wheels to develop excessive toe-out under load, producing rapid inside tyre wear and unstable cornering behaviour. The rear subframe mounting bushes are also susceptible and their collapse introduces additional compliance that amplifies the problem. Replacement requires a full four-wheel alignment after fitment to restore geometry within Toyota specification.

    What you would notice

    • Rapid or uneven wear on the inner edge of rear tyres
    • Rear-end instability or wandering during cornering, especially under load
    • Clunking or thudding from the rear suspension over road irregularities
    • Four-wheel alignment printout showing rear toe outside Toyota specification

    Typically $600–$1,500 to put right.

  • Costly issue

    Inspect the boot for splitting.

    See why

    Front Lower Arm Ball Joint Wear

    Front lower arm ball joints wear causing clunking and handling imprecision on the heavy Harrier.

    What you would notice

    • Clunking from front suspension over bumps
    • Imprecise handling feel when cornering

    Typically $350–$800 to put right.

  • Costly issue

    Check for pulling under braking.

    See why

    Brake Caliper Guide Pin Seizure

    Front and rear brake caliper guide pins seize from corrosion causing uneven pad wear.

    What you would notice

    • Vehicle pulling to one side under braking
    • One disc hotter than the other after moderate use

    Typically $200–$600 to put right.

  • Common issue

    Inspect the rubber sway bar mounting bushings for cracking, separation from the bracket, or flattening.

    See why

    Front sway bar end link and bushing failure

    The front anti-roll bar (sway bar) end links on both MCU15 and MCU35 Harrier generations use a ball-and-socket joint encased in a polyurethane or rubber boot. The end link joints wear through the ball seat and boot degradation from road grime and moisture intrusion, leading to loose articulation and audible metallic knocking. Simultaneously the sway bar mounting bushings, made from natural rubber bonded to a steel bracket, oxidise and crack from New Zealand and Australian UV exposure and road salt, causing the bar to develop lateral play and knock. Both failures are amplified on urban roads with frequent direction changes and speed bumps, and both are commonly found together given the similar operational wear cycles.

    What you would notice

    • Clunking or knocking noise from front suspension over bumps or when turning
    • Noise worsens on speed bumps and rough surfaces
    • Vague or loose steering feel on corner entry
    • Visible cracked or split rubber on sway bar bushings
    • End link boot split with visible ball joint play when physically checked

    Typically $180–$650 to put right.

Toyota Harrier service schedule

The 6 engines a 2003 Toyota Harrier was sold with, each with its own intervals. Pick your engine above to narrow this to one. These are the model’s intervals — the car’s own service book is the only thing that can tell you what has actually been done to it.

Second Generation (XU30) · 2003–2013 · 2.4L 2AZ-FE I4 AWD

Petrol

Due by distance

  1. 150,000 km

    Refresh the cooling system, radiator hoses and thermostat included, to head off the overheating older cars are prone to.

  2. 200,000 km

    Check the alternator and starter motor, since these electrical parts often reach the end of their intended life around here.

  3. 250,000 km

    Turn attention to the suspension, struts and mounts included, to keep the car as comfortable as it should be.

Second Generation (XU30) · 2003–2006 · 3.0L 1MZ-FE V6 AWD

Petrol

Due by distance

  1. 150,000 km

    Confirm the timing belt has been replaced, because the 1MZ-FE is an interference engine.

  2. 200,000 km

    Check the cooling system hoses and the radiator for brittleness or general age.

  3. 250,000 km

    Attention moves to suspension parts such as strut mounts and stabiliser links, which may be near the end of their life.

Second Generation (XU30) · 2003–2006 · 3.0L 1MZ-FE V6 FWD

Petrol

Due by distance

  1. 150,000 km

    Confirm the timing belt and water pump have been replaced, as the 1MZ-FE is an interference design.

  2. 200,000 km

    Give the cooling system a full inspection, including radiator hoses and the thermostat housing.

  3. 250,000 km

    By here the suspension dampers have probably gone soft, which takes the edge off the original plush ride.

Second Generation (XU30) · 2003–2013 · 2.4L 2AZ-FE I4 FWD

Petrol

Due by distance

  1. 150,000 km

    Make sure the transmission fluid has been refreshed so the shifts stay smooth.

  2. 200,000 km

    Check the alternator and starter motor so your daily driving stays trouble free.

First Generation (XU10) · 2000–2003 · 3.0L 1MZ-FE V6 AWD

Petrol

Due by distance

  1. 150,000 km

    This is the second timing belt interval; check the water pump was done at the same time.

  2. 200,000 km

    A full suspension refresh may be due, as bushings and struts often show wear by now.

  3. 250,000 km

    Turn attention to the cooling system, including the radiator hoses and thermostat.

First Generation (XU10) · 2000–2003 · 3.0L 1MZ-FE V6 FWD

Petrol

Due by distance

  1. 150,000 km

    Check the cooling system hoses and the radiator are still in good shape.

  2. 200,000 km

    A likely point for the second or third timing belt service, as the 1MZ-FE is an interference engine.

  3. 250,000 km

    Start budgeting for the alternator and starter motor, which may not have much life left.

See all 20 issues for this oneDocumented for the exact year and engine you picked, including 4 rated critical.
Electrical2

01Electric Power Steering Rack Rattle

Drive over rough surfaces at low speed and listen for rattle from the steering rack area.2003–2013Electrical
CommonElectrical $600–$2,200 to fix

EPS rack develops internal rattle at low speeds over rough surfaces.

Symptoms to notice

  • Knocking or rattling from steering rack at low speeds
  • Vibration through steering wheel during slow manoeuvring

What to check

Drive over rough surfaces at low speed and listen for rattle from the steering rack area.

Where to look: Electric power steering rack assembly

Parts involved: Steering rack.

Ask the seller

  • “Has the electric power steering rack rattle been inspected or repaired?”

02Air Conditioning Compressor Electromagnetic Clutch Failure

petrol1997–2003Electrical
CommonElectrical $450–$1,300 to fix

The Denso SD7H15 compressor fitted to the MCU10/MCU15 Harrier uses an electromagnetic clutch to engage and disengage the compressor from the drive belt. The clutch plate, rotor, and coil assembly are wear items that fail after high-mileage use or prolonged disuse of the air conditioning system. The clutch air gap widens as the friction surface wears, eventually preventing engagement. A failed clutch coil produces the same symptom. In some cases the clutch plate seizes to the rotor and drags the belt continuously, causing belt and pulley bearing failure. Denso documents this clutch as a serviceable assembly separate from the compressor body.

Symptoms to notice

  • Air conditioning system producing no cooling with the compressor clutch visibly not engaging
  • Grinding or squealing noise from the compressor belt area when AC is switched on
  • Clutch engaging intermittently with cooling output fluctuating
  • Drive belt showing accelerated wear or slipping due to clutch plate dragging on the rotor

What to check

  1. With the engine running and AC set to maximum cold, observe the compressor clutch hub at the front of the compressor — it should spin with the pulley when engaged and be stationary when off.
  2. Listen for a click when the AC is switched on.
  3. Inspect the drive belt for oil contamination from compressor shaft seal.
  4. If a workshop inspection is possible: If the clutch plate does not engage, use a multimeter to test coil resistance across the two-pin connector (typically 3–4 ohms for Denso units; open circuit indicates coil failure).
  5. Measure the clutch air gap with feeler gauges — Denso specification is 0.4–0.6 mm; gaps above 1 mm prevent engagement.

Where to look: Air conditioning compressor front face, electromagnetic clutch assembly (plate, rotor, coil), driver's side lower engine bay, belt-driven from crankshaft

Parts involved: Clutch.

Ask the seller

  • “Does the air conditioning cool effectively and has the system been regassed recently?”
  • “Has the compressor clutch or AC system ever been repaired or inspected?”
  • “Does the AC work consistently or does it cut in and out during operation?”
Body, brakes, suspension & interior1 critical6

03Front Lower Control Arm Ball Joint Wear

With the wheel hanging freely, grip the tyre at 6 and 12 o'clock and check for vertical play in the ball joint.1997–2003Suspension
CommonSuspension $350–$800 to fix

The front lower control arm ball joints on the MCU10 and MCU15 Harrier are a high-wear item that degrades progressively with age and mileage, particularly on New Zealand roads. The ball joint carries combined lateral and vertical loads at the wheel hub and its rubber boot splits over time, allowing grease loss and water ingress that accelerates wear. Excessive radial play causes imprecise steering and is a common Warrant of Fitness failure point in NZ. In severe cases a failed ball joint can separate, causing sudden loss of steering and wheel collapse. Toyota specifies a maximum radial play tolerance and calls for replacement when exceeded; press-in replacement joints are available from Toyota and aftermarket suppliers.

The front wheel of a car splayed outward with the lower control arm hanging down after a ball joint separation.Example of the part — not this vehicle

A separated lower ball joint: the control arm has dropped and the wheel has splayed out under the guard.

Elfix · CC0 · Wikimedia Commons

Symptoms to notice

  • Clunking or knocking from the front suspension when going over speed bumps or rough surfaces
  • Vague or imprecise steering with the vehicle wandering on straight roads
  • Uneven or rapid tyre wear on the front axle
  • Warrant of Fitness rejection for excessive ball joint play

What to check

With the wheel hanging freely, grip the tyre at 6 and 12 o'clock and check for vertical play in the ball joint. Then grip at 3 and 9 o'clock and check for radial play. Any detectable play beyond 1 mm is cause for rejection in NZ WoF. Inspect the dust boot for cracks or tears with a torch. Lower the vehicle onto its wheels and have an assistant rock the steering while you observe the ball joint for movement with the vehicle weight loaded. If a workshop inspection is possible: Raise the vehicle on a hoist and support the lower arm.

Where to look: Front lower control arm (wishbone), ball joint at the outboard end connecting to the steering knuckle, both left and right sides

Parts involved: Ball joint.

Ask the seller

  • “When were the front ball joints last inspected or replaced?”
  • “Has the vehicle had any recent WoF advisory notices related to suspension?”
  • “Have you heard any clunking from the front suspension over rough roads?”

04Rear Suspension Trailing Arm and Lateral Link Bush Collapse

Look for the rubber sitting proud of the metal sleeve or showing full separation.1997–2003SuspensionRead the full fault: symptoms, where to look, what to ask the seller

05Front Lower Arm Ball Joint Wear

Inspect the boot for splitting.2003–2013Suspension
CommonSuspension $350–$800 to fix

Front lower arm ball joints wear causing clunking and handling imprecision on the heavy Harrier.

The front wheel of a car splayed outward with the lower control arm hanging down after a ball joint separation.Example of the part — not this vehicle

A separated lower ball joint: the control arm has dropped and the wheel has splayed out under the guard.

Elfix · CC0 · Wikimedia Commons

Symptoms to notice

  • Clunking from front suspension over bumps
  • Imprecise handling feel when cornering

What to check

Inspect the boot for splitting. If a workshop inspection is possible: With vehicle raised, lever the lower arm and check for ball joint play.

Where to look: Front lower suspension control arms

Parts involved: Ball joint.

Ask the seller

  • “Has the front lower arm ball joint been inspected or repaired?”

06Brake Caliper Guide Pin Seizure

Check for pulling under braking.2003–2013Brakes
CommonBrakes $200–$600 to fix

Front and rear brake caliper guide pins seize from corrosion causing uneven pad wear.

Symptoms to notice

  • Vehicle pulling to one side under braking
  • One disc hotter than the other after moderate use

What to check

  1. Check for pulling under braking.
  2. Feel for uneven wheel heat.
  3. Inspect guide pins.

Where to look: Front and rear brake calipers

Parts involved: Brake disc and pads.

Ask the seller

  • “Has the brake caliper guide pin seizure been inspected or repaired?”

07Rear Multi-Link Bush Collapse

Inspect rear suspension arm bushes for cracking.2003–2013Suspension
CommonSuspension $400–$1,200 to fix

Rear multi-link suspension arm bushes harden and collapse causing rear knocking.

Symptoms to notice

  • Knocking from rear suspension over rough surfaces
  • Imprecise rear handling feel

What to check

  1. Inspect rear suspension arm bushes for cracking.
  2. Push arms — any movement indicates collapsed bushes.

Where to look: Rear multi-link suspension arm bushes

Ask the seller

  • “Has the rear multi-link bush collapse been inspected or repaired?”

08Front sway bar end link and bushing failure

Inspect the rubber sway bar mounting bushings for cracking, separation from the bracket, or flattening.petrol1997–2013Suspension
Very commonSuspension $180–$650 to fix

The front anti-roll bar (sway bar) end links on both MCU15 and MCU35 Harrier generations use a ball-and-socket joint encased in a polyurethane or rubber boot. The end link joints wear through the ball seat and boot degradation from road grime and moisture intrusion, leading to loose articulation and audible metallic knocking. Simultaneously the sway bar mounting bushings, made from natural rubber bonded to a steel bracket, oxidise and crack from New Zealand and Australian UV exposure and road salt, causing the bar to develop lateral play and knock. Both failures are amplified on urban roads with frequent direction changes and speed bumps, and both are commonly found together given the similar operational wear cycles.

Symptoms to notice

  • Clunking or knocking noise from front suspension over bumps or when turning
  • Noise worsens on speed bumps and rough surfaces
  • Vague or loose steering feel on corner entry
  • Visible cracked or split rubber on sway bar bushings
  • End link boot split with visible ball joint play when physically checked

What to check

Inspect the rubber sway bar mounting bushings for cracking, separation from the bracket, or flattening. Also check rear sway bar end links which follow a similar wear pattern. If a workshop inspection is possible: With vehicle on a hoist, grasp front sway bar and rock it laterally — any movement at the mounting bushings or end link joints indicates wear. Physically check each end link for ball joint play by prying with a lever while observing.

Where to look: Front suspension — sway bar end links connecting bar to strut lower arm, and rubber bushing clamps on subframe

Ask the seller

  • “Have the sway bar end links or bushings been replaced?”
  • “Does the front suspension knock over speed bumps or rough roads?”
  • “When was the last full suspension inspection carried out?”
  • “Has the vehicle had a wheel alignment recently and were any suspension items noted?”
Fluid leaks1

09Power steering rack and high-pressure hose leaks (XU30, shared with Lexus RX330/350)

Check the power steering reservoir level and whether the fluid is fresh or black.petrol2003–2013Fluid LeaksRead the full fault: symptoms, where to look, what to ask the seller
Depends on the exact engine — 11 moreDocumented for a specific engine we could not confirm from what you picked. Check the engine code on the car.
Engine, transmission & cooling9

011MZ-FE Engine Oil Sludge and Bearing Failure

Pull the dipstick and check for tar-like consistency.petrol1997–2003EngineRead the full fault: symptoms, where to look, what to ask the seller

02Excessive oil consumption - 2.4 2AZ-FE piston ring defect

Pull the dipstick before and after the test drive - low oil on a car being sold is a red flag.petrol2003–2012EngineRead the full fault: symptoms, where to look, what to ask the seller

031MZ-FE radiator plastic end tank cracking

Inspect both plastic end tanks for hairline cracks, particularly at the crimp seam and around hose connections.petrol1997–2003CoolingRead the full fault: symptoms, where to look, what to ask the seller

041MZ-FE Rear Cylinder Bank Head Gasket Seepage

Check the coolant reservoir level and look for oil contamination or brownish tint.petrol1997–2003CoolingRead the full fault: symptoms, where to look, what to ask the seller

052AZ-FE Oil Consumption on 2.4 Variant

Check oil level frequently.petrol2003–2013Engine
CommonEngine $500–$3,000 to fix

Can't confirm for this car

The MCU36 Harrier 2AZ-FE 2.4 variant consumes oil from piston ring and valve stem seal wear at elevated rates on high-km examples.

Symptoms to notice

  • Blue smoke from exhaust on startup and deceleration
  • Frequent oil top-ups needed between regular service intervals

What to check

Check oil level frequently. Blue smoke from exhaust on startup indicates valve stem seal or ring wear.

Where to look: 2AZ-FE engine cylinder bores, piston rings, and valve stem seals

Ask the seller

  • “Has the 2az-fe oil consumption on 2.4 been inspected or repaired?”

061MZ-FE VVT-i actuator blocked by oil sludge

Remove oil filler cap and inspect underside for sludge or varnish deposits.petrol1997–2003EngineRead the full fault: symptoms, where to look, what to ask the seller

071MZ-FE VVT-i Solenoid Sludge Failure

Connect a scanner and check for VVT-i fault codes.petrol2003–2013Engine
CommonEngine $400–$1,200 to fix

Can't confirm for this car

The MCU35/36 Harrier 1MZ-FE 3.0 V6 VVT-i oil control solenoid valves clog with sludge from infrequent oil changes, causing the VVT-i system to fail. The sludge restricts oil flow to the variable cam timing actuators causing the engine management system to illuminate a check engine light with VVT-i fault codes.

Symptoms to notice

  • Check engine light with VVT-i related fault codes at startup
  • Rough idle on cold start that improves once the engine reaches operating temperature

What to check

Connect a scanner and check for VVT-i fault codes. A rough idle that improves after warm-up on a high-km 1MZ-FE suggests VVT-i solenoid sludge. Ask about oil change history — intervals beyond 5000km with a 1MZ-FE strongly increase sludge risk.

Where to look: VVT-i oil control solenoid valves on each cylinder bank of the 1MZ-FE V6

Ask the seller

  • “Has the 1mz-fe vvt-i solenoid sludge failure been inspected or repaired?”

08Automatic Transmission Torque Converter Shudder

Test drive at 80-100 km/h with very light throttle and feel for rhythmic vibration.petrol2003–2013Transmission
CommonTransmission $400–$2,500 to fix

Can't confirm for this car

Harrier automatic transmission develops torque converter lock-up shudder under light throttle at highway cruise.

A cutaway automatic transmission torque converter showing the internal turbine and stator.Example of the part — not this vehicle

A torque converter, sectioned. The lock-up clutch inside is what shudders.

No machine-readable author provided. BerndB~commonswiki assumed (based on copyright claims). · CC BY-SA 3.0 · Wikimedia Commons

Symptoms to notice

  • Rhythmic vibration at highway speed under light throttle
  • Shudder clears under firm acceleration as lock-up clutch releases

What to check

Test drive at 80-100 km/h with very light throttle and feel for rhythmic vibration. ATF that is brown rather than red indicates degraded fluid.

Where to look: Automatic transmission and torque converter assembly

Parts involved: Torque converter.

Ask the seller

  • “Has the automatic transmission torque converter shudder been inspected or repaired?”

09A541E Automatic Transmission Torque Converter Clutch Shudder

Test drive at highway speed (80–100 km/h) with light, steady throttle and note any rhythmic vibration or shudder felt through the floor and seat.petrol1997–2003TransmissionRead the full fault: symptoms, where to look, what to ask the seller
Electrical1

01MCU35 AWD rear diff vacuum solenoid failure

Inspect vacuum solenoid valve on firewall or near ATC module for cracked casing or corroded electrical connector.petrol2003–2013ElectricalRead the full fault: symptoms, where to look, what to ask the seller
Fluid leaks1

01Power Steering Pump Shaft Seal Leak

Inspect the power steering pump pulley and the subframe below it for reddish-pink fluid staining.petrol1997–2003Fluid Leaks
CommonFluid Leaks $450–$1,200 to fix

Can't confirm for this car

The power steering pump fitted to the 1MZ-FE Harrier is prone to shaft seal deterioration after 150,000 km or when the power steering fluid has not been renewed. The shaft seal behind the pulley weeps fluid onto the drive belt and subframe, and if unchecked the fluid loss eventually causes pump whine, stiff steering, and pump bearing failure. The high-pressure hose banjo fittings also crack at the pump outlet on aged vehicles. Both the seal and high-pressure hose are standard service items. Aisin (the OEM pump supplier) documents this seal as a scheduled replacement component at high mileage.

Symptoms to notice

  • Reddish-pink power steering fluid pooling under the engine or staining the driver's-side subframe
  • High-pitched whining or moaning noise from the pump when turning the steering wheel
  • Increasing steering effort particularly at low speeds or on full lock
  • Power steering drive belt showing oil contamination or glazing

What to check

  1. Inspect the power steering pump pulley and the subframe below it for reddish-pink fluid staining.
  2. Check the reservoir fluid level and condition — black or cloudy fluid indicates long-term neglect.
  3. With the engine idling, turn the steering lock to lock and listen for moaning or whining from the pump.
  4. Inspect the high-pressure hose banjo fitting at the pump outlet for seepage and crack formation.
  5. Check the drive belt for oil contamination causing glazing or cracking.

Where to look: Power steering pump body, shaft seal behind the belt pulley, driver's side lower engine bay; high-pressure hose at the pump outlet banjo fitting

Parts involved: Steering rack.

Ask the seller

  • “Has the power steering fluid ever been changed and when was it last checked?”
  • “Have you noticed any steering noise or increased effort when turning?”
  • “Is there any fluid staining visible under the driver's side of the engine bay?”
Other Toyota Harrier engines and years6 documented issues that do not apply to the one you picked.
Engine, transmission & cooling3

01CVT (K114/K115) shudder and failure on 2.0 petrol XU60

On the test drive, do several gentle take-offs from a complete stop and feel for shudder through the floor.petrol2013–2020Transmission
OccasionalTransmission $1,500–$6,000 to fix

Does not apply

The 2.0 non-turbo XU60 Harrier drives through a K114/K115 belt-type CVT, and owner forums in CVT-heavy import markets report shudder, judder on take-off, whine and outright failures, with used-import examples considered fragile when the fluid has never been changed. Toyota calls the fluid 'lifetime' but specialists recommend CVT-fluid changes every 40,000-60,000 km; a neglected unit that starts shuddering usually needs a valve body, overhaul or replacement CVT, which is a $3,000-6,000 job in NZ (used replacement units are cheaper but a gamble).

Symptoms to notice

  • Shudder or vibration pulling away from a stop
  • Whining or droning that rises with road speed
  • Revs flaring without matching acceleration
  • Delayed or clunky engagement selecting Drive or Reverse

What to check

On the test drive, do several gentle take-offs from a complete stop and feel for shudder through the floor. Accelerate steadily and confirm revs and speed rise together without flare. Listen for whine at constant speed. Ask when the CVT fluid was last changed - 'it's sealed for life' from a seller means never.

Where to look: CVT transmission bolted to the engine, front of the car; fluid condition checked from underneath

Parts involved: Mechatronic / valve body, Turbocharger.

Ask the seller

  • “Has the CVT fluid ever been changed, and is there an invoice?”
  • “Any shudder or vibration when pulling away?”
  • “Has the transmission ever been repaired or replaced?”

02Valvematic controller failure (2.0 3ZR-FAE)

Start the engine cold and listen at the top of the engine for rattles or knocking that persists past the first seconds.petrol2013–2020Engine
OccasionalEngine $1,800–$3,500 to fix

Does not apply

The 2.0-litre 3ZR-FAE in the XU60 Harrier uses Toyota's Valvematic continuously variable valve-lift system, and the Valvematic controller (the electric actuator on the cylinder head) is a documented weak point across all 3ZR-FAE applications. It fails with rattles/knocks, rough running, check engine light and limp mode, and the only fix is replacing the complete controller unit - an expensive part even aftermarket. The same engine also has the usual VVT-i cold-start rattle. Any check engine light on a 2.0 XU60 needs proper diagnosis before purchase because this repair can exceed $3,000.

Symptoms to notice

  • Check engine light with Valvematic fault codes
  • Knocking or rattling noise from the top of the engine
  • Rough idle, poor throttle response or limp mode
  • Noticeably increased fuel consumption

What to check

  1. Start the engine cold and listen at the top of the engine for rattles or knocking that persists past the first seconds.
  2. Check no engine warning light is on and ask for a scan tool check for stored codes - Valvematic faults log clearly.
  3. On the test drive, confirm smooth idle and clean throttle response at all speeds.

Where to look: Valvematic controller unit bolted to the intake side of the cylinder head, under the bonnet

Parts involved: Cylinder head.

Ask the seller

  • “Has the Valvematic controller ever been replaced?”
  • “Has the check engine light ever come on, and what was the code?”
  • “Any unusual rattles from the engine when cold?”

03Jerky low-speed shifts from Direct Shift-CVT (2.0 M20A, XU80)

Spend part of the test drive in slow stop-start conditions: repeated gentle take-offs, crawling, and light throttle at 10-30 km/h.petrol2020 onwardTransmission
OccasionalTransmission $200–$1,500 to fix

Does not apply

Owners of the 2.0 petrol XU80 report jerky or hesitant behaviour from the Direct Shift-CVT (which uses a physical launch gear before handing over to the belt), most noticeable in stop-start traffic and on light throttle take-up. It is listed among the model's most-reported problems in owner guides. In most cases it is a characteristic or is improved by software updates and fresh CVT fluid rather than a hard failure, but a unit that clunks, slips or shudders hard needs specialist assessment - the transmission is new-generation and repair parts are dealer-priced.

Symptoms to notice

  • Jerk or lurch during low-speed take-off or crawling in traffic
  • Hesitation when accelerating from a stop
  • Clunk when shifting between Drive and Reverse

What to check

Spend part of the test drive in slow stop-start conditions: repeated gentle take-offs, crawling, and light throttle at 10-30 km/h. Some launch-gear handover feel is normal; hard clunks, slip or shudder are not. Ask whether any transmission software updates or fluid services have been done.

Where to look: Direct Shift-CVT transmission at the front of the car

Ask the seller

  • “Has the transmission ever been reflashed or serviced?”
  • “Does it ever clunk or lurch in traffic?”
  • “Is there any remaining Toyota warranty, and does it transfer to NZ?”
Electrical2

01Hybrid inverter IPM failure - system shutdown (Harrier Hybrid MHU38)

Get a hybrid-capable scan before buying: inverter fault history (codes like P0A94/P3004 family) is stored even after warnings clear.hybrid2005–2012Electrical
OccasionalElectrical $2,000–$6,000 to fix

Does not apply

The Harrier Hybrid MHU38 is mechanically the Lexus RX400h, which was recalled (Lexus Safety Recall BLD) because transistors in the inverter's Intelligent Power Module were inadequately soldered and fail under heat during high-load driving. Failure lights up multiple dash warnings, forces limp mode, and can shut the hybrid system down completely while driving. The US recall never covered JDM Harriers, so imported cars carry the same defect with no factory remedy. Replacement inverters are expensive; used or repaired units are the realistic fix in NZ.

Symptoms to notice

  • Multiple warning lights (hybrid system, check engine, VSC) at once
  • Sudden loss of power / limp mode, especially under hard acceleration or towing
  • Car refuses to READY / start
  • Complete shutdown while driving

What to check

  1. Get a hybrid-capable scan before buying: inverter fault history (codes like P0A94/P3004 family) is stored even after warnings clear.
  2. On the test drive, accelerate hard up a hill for a sustained burst - IPM failures show under high load.
  3. Ask whether the inverter has ever been replaced and check for paperwork.

Where to look: Inverter unit - the large finned box on top of the transaxle in the engine bay

Ask the seller

  • “Has the inverter or hybrid system ever been repaired?”
  • “Has it ever cut power or shown multiple warning lights under hard acceleration?”
  • “Can I have a hybrid specialist scan it before purchase?”

0212V battery drain and infotainment/electronic glitches (XU80)

Test every electronic feature: touchscreen, cameras, digital inner mirror, powered tailgate, parking sensors and driver-assist toggles.2020 onwardElectrical
CommonElectrical $200–$900 to fix

Does not apply

The current XU80 Harrier's most-reported owner complaints are electrical: 12V auxiliary battery drain leaving the car unable to start (a known trait of Toyota's TNGA-era cars, hybrids included, because many modules stay awake), sensor malfunctions, and glitches or freezes in the 8-12.3 inch display audio system. The digital inner mirror and powered tailgate are further gadgets to test. Most issues are resolved by software updates or a new 12V battery, but on a JDM import the head unit is Japan-spec, so radio conversion and Japanese menus are additional considerations.

Symptoms to notice

  • Car won't wake / dead after sitting a few days
  • Infotainment screen freezing, rebooting or losing Bluetooth
  • Random sensor or safety-system warnings that clear on restart
  • Digital mirror or camera displays glitching

What to check

  1. Test every electronic feature: touchscreen, cameras, digital inner mirror, powered tailgate, parking sensors and driver-assist toggles.
  2. Ask how often the car is driven - a car that sits needs a healthy 12V battery, so ask its age and look for a purchase receipt.
  3. Confirm the radio has been band-converted for NZ and check whether any software updates were done in Japan.

Where to look: 12V battery in the engine bay (or boot on hybrid); display audio unit in the centre dash

Parts involved: 12V battery.

Ask the seller

  • “Has the 12V battery ever gone flat or been replaced?”
  • “Do the screen, cameras and digital mirror all work without glitches?”
  • “Has the stereo been converted for NZ radio frequencies?”
Body, brakes, suspension & interior1

01Skid control ECU recall — stability control may not switch back on

2020–2022BrakesRead the full fault: symptoms, where to look, what to ask the seller

Toyota Harrier faults in detail

Narrowed to the Toyota Harrier · 2003. Each of these has its own page: the symptoms, where to look, what to ask the seller and what the repair costs. Free, no account needed.

1MZ-FE Engine Oil Sludge and Bearing FailureCritical · Engine1MZ-FE radiator plastic end tank crackingCritical · Cooling1MZ-FE Rear Cylinder Bank Head Gasket SeepageMajor · Cooling1MZ-FE VVT-i actuator blocked by oil sludgeMajor · EngineA541E Automatic Transmission Torque Converter Clutch ShudderMajor · TransmissionExcessive oil consumption - 2.4 2AZ-FE piston ring defectCritical · EngineMCU35 AWD rear diff vacuum solenoid failureMajor · ElectricalPower steering rack and high-pressure hose leaks (XU30, shared with Lexus RX330/350)Major · Fluid LeaksRear Suspension Trailing Arm and Lateral Link Bush CollapseMajor · Suspension

What these repairs cost on other cars

Some of the Toyota Harrier’s documented faults are repairs other models share. Each page lists the documented NZ cost for every model it affects.

Buying guides that cover the Toyota Harrier

Other Toyota models

Toyota Prado64 documented faultsToyota RAV463 documented faultsToyota Hilux60 documented faultsToyota Belta25 documented faultsToyota Crown24 documented faultsToyota LC20023 documented faults

Toyota Harrier buyer questions

Is the Toyota Harrier reliable?

Like any used car, it depends on the specific example and its service history. Across the 26 documented faults for the Toyota Harrier, the recurring problem areas are engine, electrical, and cooling. A Toyota Harrier with a full service history and no signs of the issues listed on this page can be a sound buy but each one needs to be checked individually before you commit.

What are the most common problems with a used Toyota Harrier?

We've catalogued 26 known faults for the Toyota Harrier, covering engine, electrical, and cooling. All 26 are written out in full on this page, with the symptoms to notice, what to inspect, and typical repair costs for each. Free to read, no account needed.

How much do repairs cost on a Toyota Harrier?

Most single repairs on the Toyota Harrier fall between $450–$1,500 at NZ independent-workshop rates. Some of the 26 documented faults cost less and a few cost considerably more, and no one car needs them all. Knowing which ones to look for before you view is what lets you negotiate the price down or walk away.

Should I get a pre-purchase inspection on a Toyota Harrier?

Yes. A Toyota Harrier inspection focused on its known weak points is the single best way to avoid an expensive mistake. KickTyres gives you a guided, model-specific inspection plus a market valuation and negotiation figure for $24.90 far less than the cost of missing one of the faults on this page.