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.
294 hp sport sedan, CVT holds it back
Strong VQ35 with 294 hp, but the CVT filters out the fun. Comfortable and quick, but not a sports car.
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 7
Front strut insulators can crack and in extreme cases let the strut separate from the body, causing sudden loss of control. NHTSA recall 09V358000 covers 2009-2010.
ESCL unit locks the steering wheel and prevents engine start. Acknowledged by Nissan via service campaign, but owners outside coverage window pay around $1000.
Tempered glass panoramic sunroof can explode without any outside impact. Subject to class action (Simmons Hanly Conroy) and NHTSA preliminary investigation.
JF017E CVT is prone to shudder, overheating and total failure. The 2015-2018 class-action settlement does not cover 2009-2014 cars.
A/C compressor commonly fails between 60-80k miles and aluminum A/C hoses are prone to cracking.
Known quality problem with OEM rotor castings. Warping typically by 25-40k miles due to hotspots.
Individual ignition coils fail between 50-90k miles, often on the original NGK plug set.
