Nissan Maxima
3.5L naturally aspirated V6 with an unmistakable sound — a throaty, sonorous roar that Nissan tuned, according to Calsonic engineers, with Ferrari as a reference. Revs smoothly to 7,000 rpm and really comes alive above 5,000 rpm. Plastic timing chain guides are the well-known Achilles heel from 130,000 km. Oil consumption and synchro wear in the manual gearbox are worth monitoring.
300 hp 4-door sports coupe
Even more powerful than the predecessor, same CVT dilemma. The last generation has more driving dynamics but remains front-wheel drive.
Engine Weaknesses 10
Certain production batches (2006 models) have defective piston rings fitted. Consumption can reach 1.5–4.5 l/1,000 km. Nissan replaced complete engines under warranty in such cases.
Symptoms: Heavy blue exhaust smoke under acceleration, significant oil level drop after a few hundred km, oily exhaust smell
Sustained oil starvation from the piston ring issue can cause connecting rod bearing damage. Engine repair including cylinder head replacement costs around €4,000; a replacement engine is €2,500–3,000.
Symptoms: Metallic clattering and knocking from engine, severe power loss, oil pressure warning
The ceramic substrate of the OEM catalysts fractures from oil combustion and thermal shock. Loose fragments block the exhaust path, increase back-pressure and can ultimately cause piston seizure.
Symptoms: Loud rattling from under the car on acceleration, power loss, MIL with P0420/P0430, blue exhaust plume on cold start
The FS6R31A manual gearbox has single-cone synchroniser rings in 2nd and 3rd gear. From around 80,000 km, crunching or clonking noises appear, especially with a cold gearbox. Changing gearbox oil to 75W90 GL4 helps temporarily.
Symptoms: Hard crunching or dull clonk when selecting 2nd/3rd gear, especially cold. Nissan dealers refer to it as 'normal characteristics'.
The valve cover gaskets on both cylinder banks of the V6 become porous over time and allow oil to escape. An age-related issue that should be addressed consistently to avoid secondary damage.
Symptoms: Oily smell in engine bay, visible oil traces on valve cover, oil on spark plugs
The VQ35DE's multi-point injection system washes the valves in principle, but crankcase ventilation oil mist can still cause deposits. This applies especially on older high-mileage engines.
Symptoms: Slight roughness at idle at high mileage, occasional misfires
The VQ35DE camshaft sensors fail from around 100,000 km and cause stuttering, starting problems and fault codes. Only OEM sensors are reliable; aftermarket parts fail frequently.
Symptoms: Engine stutters, starting problems, engine warning light, P fault codes
The 5-wire wideband lambda sensors of the VQ35DE become sluggish from around 110,000 km. Fault codes P0136/P0156 appear, consumption increases noticeably. OEM sensors recommended.
Symptoms: Engine warning light, fault codes P0136/P0156, increased fuel consumption, slight power loss
The VQ35DE throttle bodies carbon up from around 80,000 km. After cleaning, the ECU must relearn idle, otherwise speed stays at 2,500 rpm. Relearn procedure via ignition cycle required.
Symptoms: High idle (2,500 rpm), rough running after cleaning without ECU reset
The standard PCV valve on the VQ35DE routes crankcase gases back into the intake. With elevated crankcase pressure or age-related wear, oil enters the combustion chamber and worsens oil consumption.
Symptoms: Elevated oil consumption without visible external leak, oil film on air filter or throttle body, faint blue smoke under acceleration
Vehicle Weaknesses 5
The Jatco CVT8 in the A36 Maxima develops shudder vibrations during acceleration, especially when the transmission is warm. Nissan TSB NTB17-039L addresses this with a valve body replacement and CVT fluid flush. Typically appears around 40,000–50,000 miles on untreated vehicles.
At higher mileage the CVT8 can fail completely. The transmission loses drive abruptly, often accompanied by overheating or internal rattling. A replacement CVT costs $3,000–$5,000 and does not permanently resolve the underlying design shortcomings.
The A36 Maxima's front radar system detects phantom objects and triggers sudden hard braking with no real hazard present. Class action lawsuits have been filed. Nissan has not issued a recall but offers software updates at dealerships.
The A36 Maxima panoramic sunroof frame generates wind whistle or rattling noises above 70 mph due to inadequate sealing or a misaligned frame. Dealers can correct this with shims and track adjustment, but the fix is not always permanent.
The NissanConnect system freezes during Bluetooth use or spontaneously reboots while driving. TSB NTB20-016 resolves Bluetooth-triggered reboots via firmware patch. Persistent cases require head unit replacement.
