Toyota Mark II JZX100: common faults & what to check
The JZX100 is the Toyota Mark II built 1996–2001. Of the 22 faults documented for the Mark II, 11 apply to this generation, each with its symptoms, what to inspect and a typical repair cost. Free, no account needed.
Check this exact Toyota Mark II
- Odometer history
- Money owing
- Reported stolen
- Ownership history
22
Critical
$450–$2,000
17
You're looking at the JZX100
Now narrow it to the engine
A 1998 Toyota Mark II is the JZX100 generation (1996 to 2001).
We cannot narrow the engine list to this year, so every engine this model was sold with is offered.
Start your free check on this Toyota Mark II
Pick the engine above first: the Mark II came with 3, and without it the report has to show all of their faults. Pick the engine
Can't confirm for this car
Toyota Mark II · 1998
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
Serious issue
With the suspension hanging, inspect the rubber boot on the ball joint for splits, tears, or missing grease.
Front Lower Control Arm Ball Joint Wear
The front lower control arm ball joints on JZX90 and JZX100 Mark II are a standard wear item that sees accelerated deterioration on New Zealand roads due to pot-hole stress and the age of imported examples. The ball joint boot splits with age, allowing grease to escape and water and grit to enter the joint. Once contaminated, the joint wears rapidly. At sufficient wear, the ball joint can separate entirely, causing sudden and complete loss of steering control — this is the single most common reason for WOF failure on these chassis in New Zealand.
What you would notice
Costly issue
Check fluid level via fill plug.
Rear Differential Output Shaft and Pinion Oil Seal Leak
JZX100 and JZX110 Mark II models commonly develop oil seepage at the rear differential output shaft seals and pinion seal. NZ-import examples often show dried oil residue around the diff housing from decades of neglected seal maintenance. Minor seepage left unattended leads to low fluid, premature bearing wear, and eventual gear howl.
What you would notice
Costly issue
With a torch and mirror, inspect the inner wheel arch from underneath for crack propagation into the wheel arch reinforcement.
Rear Chassis Stress Cracking at Coilover Conversion Mount Points
The JZX90 and JZX100 Mark II are popular drift and performance platforms in New Zealand, and a high proportion of imported examples have been fitted with aftermarket coilover suspension kits. The factory rear upper shock mounting points in the boot floor and wheel well area were engineered for the original suspension loads and geometry. Poorly fitted top hats, incorrect spring rates, or extended hard use concentrate stress on the thin sheet metal around these mounts, causing cracking that can propagate into structural chassis rails. This fault is frequently concealed under boot liner or underbody coating at the time of sale.
What you would notice
Common issue
Turn wheel to full lock in both directions and observe for active weeping.
Power Steering Rack Inner Seal Leak
The hydraulic power steering rack on JZX-platform Mark II develops inner tie rod seal and rack end seal weeping with age, particularly on high-mileage imports. Fluid loss leads to heavier steering and pump whine as the reservoir runs low. Rack reseal or replacement is the only lasting fix; power steering fluid top-ups are a temporary measure that many sellers rely on before sale.
What you would notice
Toyota Mark II service schedule
Eighth Generation (X100 Facelift) · 2000–2000 · 2.0L (1G-FE) - 2.0 Beams
Due by distance
- 150,000 km
Renewing the original suspension bushes about now tightens up the steering feel.
- 200,000 km
The alternator and starter motor often want a professional assessment or a light service here.
Eighth Generation (X100 Facelift) · 2000–2000 · 2.5L (1JZ-GTE) - 2.5 Tourer V Turbo
Due by distance
- 100,000 km
The timing belt is due here, so it is worth confirming it has been replaced.
- 150,000 km
Look closely at the radiator and cooling system parts so heat is being shed properly.
- 200,000 km
Check the suspension parts, ball joints and tie rods for any play.
Eighth Generation (X100 Facelift) · 2000–2000 · 2.5L (1JZ-GE) - 2.5 Grande
Due by distance
- 150,000 km
Time for a thorough cooling system overhaul, paying attention to the radiator neck and the ageing coolant hoses.
- 200,000 km
Suspension bushings and ball joints can wear here, and the smooth ride this car is known for suffers.
- 250,000 km
Check the alternator and starter motor so the charging system keeps working steadily.
Ninth Generation (X110) · 2000–2004 · 2.0L (1G-FE) - 2.0 Grande
Due by distance
- 150,000 km
Make sure the timing belt and water pump have been dealt with, as the 1G-FE engine depends on them.
- 200,000 km
Check the suspension struts and steering rack mounts to keep the ride quality Toyota is known for.
- 250,000 km
Flush the cooling system and consider new rubber hoses to save yourself trouble later.
Ninth Generation (X110) · 2000–2004 · 2.5L (1JZ-FSE) - 2.5 Grande/iR-S D-4
Due by distance
- 100,000 km
The second major service falls here, which can mean new spark plugs and a thorough cooling system check.
- 150,000 km
Original suspension parts such as struts and bushings often show their age and need replacing to handle properly.
- 200,000 km
An important milestone where a full check of the fuel system parts and a deep clean of the intake manifold may be needed.
Ninth Generation (X110) · 2000–2004 · 2.5L (1JZ-GTE) - 2.5 iR-V Turbo
Due by distance
- 100,000 km
The first major timing belt service should already be done by here, with the water pump and tensioner replaced at the same time.
- 150,000 km
Check the turbocharger's oil feed lines and the state of the cooling system parts.
- 200,000 km
Suspension bushings and ball joints can start wearing here, which takes the crispness out of the handling.
See all 11 issues for this one
Body, brakes, suspension & interior1 critical
01Front Lower Control Arm Ball Joint Wear
The front lower control arm ball joints on JZX90 and JZX100 Mark II are a standard wear item that sees accelerated deterioration on New Zealand roads due to pot-hole stress and the age of imported examples. The ball joint boot splits with age, allowing grease to escape and water and grit to enter the joint. Once contaminated, the joint wears rapidly. At sufficient wear, the ball joint can separate entirely, causing sudden and complete loss of steering control — this is the single most common reason for WOF failure on these chassis in New Zealand.
Example of the part — not this vehicleA separated lower ball joint: the control arm has dropped and the wheel has splayed out under the guard.
Symptoms to notice
What to check
Ask the seller
02Rear Chassis Stress Cracking at Coilover Conversion Mount Points
The JZX90 and JZX100 Mark II are popular drift and performance platforms in New Zealand, and a high proportion of imported examples have been fitted with aftermarket coilover suspension kits. The factory rear upper shock mounting points in the boot floor and wheel well area were engineered for the original suspension loads and geometry. Poorly fitted top hats, incorrect spring rates, or extended hard use concentrate stress on the thin sheet metal around these mounts, causing cracking that can propagate into structural chassis rails. This fault is frequently concealed under boot liner or underbody coating at the time of sale.
Symptoms to notice
What to check
Ask the seller
03TEMS Suspension Actuator Failure and Ride Height Error
The JZX100 Mark II Tourer V is fitted with Toyota Electronically Modulated Suspension (TEMS), which uses electric actuators at each corner to switch damper firmness between Sport and Normal modes. The actuator motor assemblies are prone to internal motor failure and seized rotary valves after more than 15–20 years of service. A failed actuator causes that corner to default to its hard stop damping mode, resulting in noticeably uneven ride quality — one corner feeling significantly firmer than the others. The TEMS warning light illuminates and the system cannot complete its self-test, and replacement OEM actuators are scarce, often requiring second-hand units or conversion to non-TEMS aftermarket coilovers.
Symptoms to notice
What to check
Ask the seller
Fluid leaks
04Rear Differential Output Shaft and Pinion Oil Seal Leak
JZX100 and JZX110 Mark II models commonly develop oil seepage at the rear differential output shaft seals and pinion seal. NZ-import examples often show dried oil residue around the diff housing from decades of neglected seal maintenance. Minor seepage left unattended leads to low fluid, premature bearing wear, and eventual gear howl.
Symptoms to notice
What to check
Ask the seller
05Power Steering Rack Inner Seal Leak
The hydraulic power steering rack on JZX-platform Mark II develops inner tie rod seal and rack end seal weeping with age, particularly on high-mileage imports. Fluid loss leads to heavier steering and pump whine as the reservoir runs low. Rack reseal or replacement is the only lasting fix; power steering fluid top-ups are a temporary measure that many sellers rely on before sale.
Symptoms to notice
What to check
Ask the seller
06Power Steering Pump Seal and Hose Leak
The rack-and-pinion power steering system on JZX90 and JZX100 Mark II models uses an engine-driven vane pump with rubber shaft seals and high-pressure hose connections that deteriorate with age and heat cycling. Seals harden and crack after 25–30 years, allowing power steering fluid to weep from the pump body, the high-pressure hose banjo fitting, or the return line. Fluid loss is typically slow, but if left unattended the reservoir empties and the pump runs dry, causing rapid bearing and vane wear.
Symptoms to notice
What to check
Ask the seller
Depends on the exact engine — 5 more
Engine, transmission & cooling
011JZ-GTE Timing Belt Failure and Turbo Oil Feed Seal Leak
Can't confirm for this car
Can't confirm for this car
The 1JZ-GTE is an interference engine; belt failure causes piston-to-valve contact and catastrophic engine damage. The turbo oil return line O-ring and banjo bolt seals degrade with age and heat cycles, causing oil to pool in the turbo housing and burn at startup. Both faults are age-related and the majority of NZ-import JZX90/100 examples have no documented belt replacement history.
Symptoms to notice
What to check
Ask the seller
02Timing Belt Tensioner Pulley Bearing Collapse
Can't confirm for this car031JZ-GTE Turbo Oil Return Line Cracking and Oil Burning
Can't confirm for this car04A341E/A340E solenoid wear & clutch pack slip
Can't confirm for this car05Automatic Transmission Torque Converter Lock-Up Shudder
Can't confirm for this carOther Toyota Mark II engines and years
Engine, transmission & cooling
011JZ-GE Timing Belt Failure on Neglected Examples
Does not apply02JZX90 Head Gasket Seepage on High-Mileage Engines
Does not apply
Does not apply
JZX90 Mark II 1JZ-GE engines with odometer readings above 180,000 km — common on examples that have been re-complied in New Zealand after accumulated Japanese mileage — exhibit coolant seepage past the head gasket, particularly at the front and rear corners of the cylinder head. The failure typically begins as slow weeping rather than catastrophic breach, making it easy to miss at a casual inspection. Improper past overheats from cooling system neglect accelerate head gasket deterioration.
Example of the part — not this vehicleA used multi-layer head gasket. Discolouration between a cylinder and a water gallery is the tell.
Symptoms to notice
What to check
Ask the seller
031JZ-GTE turbo oil smoke and abuse/modification history on the turbo cars
Does not apply041JZ-GE timing chain tensioner wear cold start rattle
Does not apply051JZ-GE VVTi actuator failure P0011 cam timing fault
Does not apply061JZ-GTE intercooler pipe hose clamp boost leak
Does not applyBody, brakes, suspension & interior
01Structural rust in sills, rear arches, floor pans and rear subframe mounts
Does not apply02Collapsed rear suspension arm bushes and cracked/rusted rear subframe mounts
Does not apply03JZX90 rear multi-link lower arm bush deterioration
Does not apply04JZX110 front lower arm inner bush failure steering shimmy
Does not applyToyota Mark II faults in detail
What these repairs cost on other cars
Some of the Toyota Mark II’s documented faults are repairs other models share. Each page lists the documented NZ cost for every model it affects.
Other Toyota models
Toyota Mark II buyer questions
Is the Toyota Mark II reliable?
Like any used car, it depends on the specific example and its service history. Across the 22 documented faults for the Toyota Mark II, the recurring problem areas are engine, suspension, and transmission. A Toyota Mark II 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 Mark II?
We've catalogued 22 known faults for the Toyota Mark II, covering engine, suspension, and transmission. All 22 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 Mark II?
Most single repairs on the Toyota Mark II fall between $450–$2,000 at NZ independent-workshop rates. Some of the 22 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 Mark II?
Yes. A Toyota Mark II 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.