Nissan 370Z: common faults & what to check
Thinking about buying a used Nissan 370Z (2002–2021) in New Zealand? We've documented 15 known faults for this model spanning engine, suspension, transmission, and brakes. Each researched and verified before it's published. The most serious issues here are rated critical. Every one is listed below with its symptoms and repair cost, and each has its own page with where to look and what to ask the seller. Free, no account needed.
Check this exact Nissan 370Z
- Odometer history
- Money owing
- Reported stolen
- Ownership history
15
Critical
$400–$3,500
5
Which Nissan 370Z are you looking at?
Petrol
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Start your free check on this Nissan 370Z
Pick the engine above first: the 370Z came with 2, and without it the report has to show all of their faults. Pick the engine
Can't confirm for this car
Nissan 370Z
Nothing has been narrowed yet, so nothing below is a claim about a particular car. Pick a year and an engine to see which faults apply.
Tell us the engine, or check the engine code on the car, before relying on this.
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What to look out for
Serious issue
Scan for fault codes before test driving — P1800-series codes are diagnostic of VVEL failure.
VVEL Variable Valve Lift Actuator Failure
The VQ37VHR engine uses Nissan's Variable Valve Event and Lift (VVEL) system on the intake camshafts. The VVEL actuator motor and its worm-gear drive mechanism are prone to wear and failure, particularly in high-mileage or irregularly maintained examples. Failure causes the engine to enter limp mode with severely reduced power, a rough lumpy idle, and a cluster of P1800-series fault codes. Actuator replacement requires removal of the cam cover and in severe cases major disassembly. Parts alone can exceed $1,500 NZD. This is the single most significant documented mechanical fault of the VQ37VHR platform.
What you would notice
Serious issue
Watch for: Clunking or knocking from the front suspension when traversing speed bumps, pot holes or during parking manoeuvres.
Front Lower Control Arm Ball Joint Wear
The Z33 and Z34 front suspension uses pressed-in ball joints in the lower control arms. Road grit, moisture and the high cornering loads generated by the stiff suspension geometry accelerate wear of the ball joint socket and bearing surface. As clearance increases the joint develops axial play, which allows the knuckle to move unpredictably under braking and cornering loads — a safety-critical failure mode. In advanced cases the joint can separate, resulting in immediate loss of steering and wheel collapse; many WoF inspection failures on higher-mileage Z33s cite front ball joint play as the rejection reason.
What you would notice
Costly issue
Check oil level and condition on the dipstick, look for smoke on startup and revving, and inspect the PCV system and exhaust tips for oil residue.
VQ35/VQ37 high oil consumption at high km
Both the Z33 VQ35 and Z34 VQ37 V6 are known to consume oil, particularly beyond 120,000km, due to piston ring and PCV wear. Owners often top up between services, and low oil accelerates bearing wear.
What you would notice
Costly issue
Watch for: Metallic rattling or slapping from the front of the engine on cold start that diminishes after 5–15 seconds of running.
VQ35DE/VQ37VHR Timing Chain Primary and Secondary Tensioner Rattle
The VQ35DE uses a three-chain layout: one primary chain driving an intermediate shaft, and two secondary chains feeding each camshaft bank. The hydraulic tensioners, particularly the secondary units, lose oil pressure after cold soaks because the check valves allow oil to drain back to the sump overnight. On the VQ37VHR the arrangement is similar, and tensioner oil galleries are narrow enough that marginal oil viscosity or extended drain intervals starve the tensioner pistons, allowing chain slack to slap the plastic guide rails. Prolonged operation in this condition wears the guides, which can shed debris into the sump and eventually allow chain jump or guide rail breakage.
What you would notice
Costly issue
Test drive at steady highway speeds (80–110 km/h) under light throttle load to reproduce the shudder.
Z34 7-Speed Automatic Torque Converter Clutch Shudder
The Z34 fitted with the JATCO 7-speed automatic (7AT) uses a lock-up torque converter clutch that engages at light throttle cruising speeds to improve fuel economy. The friction material and ATF formulation proved marginally compatible, causing the clutch to oscillate between slip and lock states rather than maintaining steady engagement — a phenomenon felt as a repetitive shudder through the drivetrain. Nissan issued a service procedure specifying a transmission fluid drain and fill with Nissan Matic-S or equivalent to address friction surface conditioning; however, vehicles with high mileage or where the fluid was never changed may have worn friction material requiring torque converter replacement.
What you would notice
Costly issue
Check clutch fluid reservoir level, test pedal firmness and engagement point, and look for fluid leaks at the master cylinder and gearbox bellhousing.
Clutch master/slave cylinder failure
The 370Z 6-speed manual suffers hydraulic clutch master and slave (concentric) cylinder failures, causing a spongy or dropping clutch pedal and difficulty selecting gears. Common failure point on higher-km cars.
What you would notice
See all 15 documented issues
Depends on which engine this Nissan 370Z has — 15
Engine, transmission & cooling
01VVEL Variable Valve Lift Actuator Failure
Can't confirm for this car02VQ35/VQ37 high oil consumption at high km
Can't confirm for this car
Can't confirm for this car
Both the Z33 VQ35 and Z34 VQ37 V6 are known to consume oil, particularly beyond 120,000km, due to piston ring and PCV wear. Owners often top up between services, and low oil accelerates bearing wear.
Symptoms to notice
What to check
Ask the seller
03VQ35DE/VQ37VHR Timing Chain Primary and Secondary Tensioner Rattle
Can't confirm for this car04VQ37VHR High-Mileage Valve Stem Seal Oil Consumption
Can't confirm for this car
Can't confirm for this car
At higher mileages — typically over 120,000 km — the VQ37VHR engine develops significant oil consumption due to deteriorating valve stem seals and valve guide wear. Oil is drawn into the combustion chambers past the stems, producing blue smoke on cold startup and during overrun, and causing fouled spark plugs. The repair requires cylinder head removal on both banks to replace seals, making it a substantial labour job requiring engine access from above.
Symptoms to notice
What to check
Ask the seller
056-speed manual 3rd/4th gear synchro wear
Can't confirm for this car
Can't confirm for this car
The 370Z 6MT is prone to synchro wear on 3rd and 4th gears, producing a crunch or baulk when shifting, especially when cold or shifted quickly. Aggravated by track use and worn gearbox oil.
Symptoms to notice
What to check
Ask the seller
06Z34 7-Speed Automatic Torque Converter Clutch Shudder
Can't confirm for this car07Manual Transmission Clutch Pressure Plate Cracking
Can't confirm for this car
Can't confirm for this car
The 6-speed manual Z33 and Z34 use a single-disc clutch assembly where the pressure plate diaphragm spring fingers and the pressure ring itself are subject to thermal stress cracking under hard use. The factory clutch is calibrated for street loads, and repeated high-rpm launches or track sessions generate heat that exceeds the pressure plate's thermal tolerance, causing fatigue cracks to develop at the diaphragm spring fulcrum ring. Cracked pressure plates produce increasingly erratic engagement as the clamping load becomes uneven, and in severe cases the pressure ring or a diaphragm finger can fracture and damage the flywheel, bell housing or gearbox input shaft bearing.
Symptoms to notice
What to check
Ask the seller
08Clutch master/slave cylinder failure
Can't confirm for this car
Can't confirm for this car
The 370Z 6-speed manual suffers hydraulic clutch master and slave (concentric) cylinder failures, causing a spongy or dropping clutch pedal and difficulty selecting gears. Common failure point on higher-km cars.
Symptoms to notice
What to check
Ask the seller
09Rear LSD Fluid Degradation and Differential Chatter
Can't confirm for this car
Can't confirm for this car
The 370Z Sport and NISMO variants carry a factory mechanical limited-slip differential whose friction modifier additives degrade with heat cycling and mileage. Degraded fluid causes the characteristic LSD chatter during low-speed tight-radius turning as the clutch packs bind rather than slip smoothly. The differential fluid is frequently overlooked as owners assume a lifetime fill — it is not. Correct-spec fluid with friction modifier additive resolves chatter in all but severely worn differentials.
Symptoms to notice
What to check
Ask the seller
10Clutch Pedal Pivot Pin and Bushing Wear
Can't confirm for this car
Can't confirm for this car
The clutch pedal assembly on Z34 manual variants uses a small steel pivot pin running through a plastic bushing. With use, the pin and bushing wear, producing a creaking or knocking sensation when the clutch pedal is depressed or released. In advanced cases lateral play increases and the pedal feel becomes imprecise. Ignored wear can elongate the hole in the pedal bracket itself, escalating repair complexity. The fix is disassembling the pedal cluster behind the lower dashboard — a fiddly but low-cost job when caught early.
Symptoms to notice
What to check
Ask the seller
11SynchroRev Match Throttle Body Carbon Buildup and Idle Drift
Can't confirm for this car
Can't confirm for this car
The 370Z manual's SynchroRev Match (SRM) system uses the electronic throttle body to blip the engine on downshifts, automating heel-toe technique. The throttle butterfly valve accumulates carbon deposits from crankcase blow-by gases over time, causing the valve to stick at partially open positions. This produces an elevated or unstable warm idle (typically 900-1,500 RPM instead of the normal 650-750 RPM), erratic blip behaviour during SRM operation, and prolonged rough warm-up idle. Resolution requires throttle body cleaning followed by an ECU idle relearn procedure.
Symptoms to notice
What to check
Ask the seller
Body, brakes, suspension & interior
01Front Lower Control Arm Ball Joint Wear
Can't confirm for this car
Can't confirm for this car
The Z33 and Z34 front suspension uses pressed-in ball joints in the lower control arms. Road grit, moisture and the high cornering loads generated by the stiff suspension geometry accelerate wear of the ball joint socket and bearing surface. As clearance increases the joint develops axial play, which allows the knuckle to move unpredictably under braking and cornering loads — a safety-critical failure mode. In advanced cases the joint can separate, resulting in immediate loss of steering and wheel collapse; many WoF inspection failures on higher-mileage Z33s cite front ball joint play as the rejection reason.
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 Multi-Link Suspension Bush Collapse
Can't confirm for this car
Can't confirm for this car
The Z33 and Z34 rear suspension is a sophisticated five-link independent layout with rubber-bonded bushes at each arm pivot point. The toe-link and inner lateral link bushes are particularly vulnerable to degradation because they carry high longitudinal loads and are positioned close to hot exhaust components in the tunnel area. As the rubber compounds harden, crack or debond from the outer sleeve, the arms lose their intended geometry compliance and the rear axle develops uncontrolled toe changes under braking and acceleration. The result is a rear end that feels nervous or loose on corner exit, and the failure is frequently misdiagnosed as shock absorber wear before alignment data reveals the root cause.
Symptoms to notice
What to check
Ask the seller
03Brake Caliper Guide Pin Seizure
Can't confirm for this car
Can't confirm for this car
The front and rear brake calipers on the Z33 and Z34 use sliding guide pins that allow the caliper body to float and apply equal clamping force to both brake pads. In New Zealand's coastal and wet-road environment, road salt and water ingress corrode the guide pin bores in the caliper bracket, causing the pins to seize in position. A seized guide pin prevents the outboard pad from releasing fully after brake application, creating continuous rotor contact that causes accelerated pad and rotor wear, elevated brake fluid temperatures, and progressive braking pull toward the seized side. Rear calipers are disproportionately affected because they also incorporate the electric park brake mechanism, which further complicates disassembly.
Symptoms to notice
What to check
Ask the seller
Fluid leaks
01Rear differential pinion/cover oil seepage
Can't confirm for this car
Can't confirm for this car
The Z34 370Z rear diff commonly weeps oil from the pinion seal and diff cover gasket, worsened by hard driving and heat cycling. Left unchecked it can lower diff oil level and cause bearing whine.
Symptoms to notice
What to check
Ask the seller
Nissan 370Z faults in detail
What these repairs cost on other cars
Some of the Nissan 370Z’s documented faults are repairs other models share. Each page lists the documented NZ cost for every model it affects.
Other Nissan models
Nissan 370Z buyer questions
Is the Nissan 370Z reliable?
Like any used car, it depends on the specific example and its service history. Across the 15 documented faults for the Nissan 370Z, the recurring problem areas are engine, suspension, and transmission. A Nissan 370Z 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 Nissan 370Z?
We've catalogued 15 known faults for the Nissan 370Z, covering engine, suspension, and transmission. All 15 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 Nissan 370Z?
Most single repairs on the Nissan 370Z fall between $400–$3,500 at NZ independent-workshop rates. Some of the 15 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 Nissan 370Z?
Yes. A Nissan 370Z 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.