Thinking about buying a used Toyota Harrier (1997–2022) in New Zealand? We've documented 27 known faults for this model spanning engine, electrical, cooling, and suspension. Each researched and verified before it's published. The most serious issues here are rated critical. Two are set out in full below — the rest, with the symptoms, repair costs and checks for each, are free with an account.
27
Documented faults
Critical
Most serious
$450–$1,900
Typical repair
7
Systems covered
Known Toyota Harrier faults
Every fault below is documented specifically for this model — researched and verified before it’s published.
011MZ-FE Engine Oil Sludge and Bearing Failure
CriticalCommonEngine $2,500–$8,500 to fix
The 1MZ-FE 3.0 V6 is prone to severe internal oil sludge accumulation when oil change intervals exceed 5,000 km or conventional oil is used. Sludge blocks the narrow oil galleries feeding the main and rod bearings and camshaft journals, starving them of lubrication. Toyota acknowledged the issue via Special Service Policy EG007-02 in 2002, which extended warranty coverage for sludge-related engine failures. Bearing knock, spun bearings, and camshaft seizure are the terminal outcomes. The MCU10/MCU15 Harrier shares this engine with the RX300 and Camry of the same era, all of which exhibit identical sludge profiles.
Symptoms to notice
Low oil pressure warning light illuminating at idle or under load
Rhythmic knocking or rattling from the engine on cold start that may diminish once warm
Visible sludge deposits inside the valve cover when filler cap is removed
Elevated oil consumption with no external leak found
What to check
Pull the dipstick and check for tar-like consistency. If accessible, inspect around the cam timing covers for varnish staining. Request full service history and verify oil change intervals were under 5,000 km with synthetic or semi-synthetic oil. Cold-start idle for two minutes and listen for low-pitched bearing knock. Remove the oil filler cap and inspect the underside and valve cover interior for brown or black sludge deposits.
Where to look: Engine block internal oil galleries, main and rod bearing journals, camshaft carriers under valve covers
Ask the seller
“Can you show me the full service history with receipts confirming oil changes every 5,000 km or less?”
“Has the engine ever had a valve cover gasket or oil sludge flush service performed?”
“Has an oil pressure warning light ever appeared while you owned the vehicle?”
02Electric Power Steering Rack Rattle
MinorCommonElectrical $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
Ask the seller
“Has the electric power steering rack rattle been inspected or repaired?”
ElectricalCritical
EngineCritical
CoolingCritical
SuspensionCritical
BrakesCritical
TransmissionMajor
EngineMajor
CoolingMajor
EngineMajor
EngineMajor
TransmissionMajor
Fluid LeaksMajor
EngineMajor
TransmissionMajor
SuspensionMajor
EngineMajor
Fluid LeaksMajor
ElectricalMajor
SuspensionMajor
BrakesMajor
TransmissionMinor
ElectricalMinor
SuspensionMinor
ElectricalMinor
SuspensionMinor
25 more documented faults on the Toyota Harrier
Symptoms, what to check, where to look and what to ask the seller — for every fault above. Free with an account, no card needed. One account covers one vehicle, so make it the car you’re actually looking at.
This page covers the model. Enter the plate of the actual car you’re looking at and see its year, engine, safety rating and register flags — free, no account needed.
Like any used car, it depends on the specific example and its service history. Across the 27 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?
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We've catalogued 27 known faults for the Toyota Harrier, covering engine, electrical, and cooling. Two are written out in full on this page. The rest — with the symptoms to notice, what to inspect, and typical repair costs for each — are free once you create an account.
How much do repairs cost on a Toyota Harrier?
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Most single repairs on the Toyota Harrier fall between $450–$1,900 at NZ independent-workshop rates. Some of the 27 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?
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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 $17.90 far less than the cost of missing one of the faults on this page.