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2007 INFINITI FX35

3.5L V6RWDAUTOMATICgas
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5-Year Cost of Ownership
$16,219 maintenance + known platform issues
~$3,244/yr · 270¢/mile equivalent · $6,541 maintenance + $8,978 expected platform issues

Common Problems & Known Issues

The 2007 FX35 is built on Nissan's FM platform with the VQ35DE/HR V6. While the chassis is solid, this generation suffers from catastrophic engine oil consumption issues and transmission cooling failures that can total the vehicle if ignored.

VQ35 Excessive Oil Consumption / Engine Failure

Common · high severity
Typical onset: 80,000-140,000 mi
Symptoms: Burning 1+ quart per 1,000 miles, Blue smoke on cold start or acceleration, Check engine light for lean codes or misfires, Catalytic converter damage from oil fouling
Fix: Piston ring land failure on cylinders 5 and 6 most common. Requires engine teardown, new pistons/rings, honing, and gasket set. 18-24 hours labor for in-chassis rebuild. Many shops recommend short-block replacement or used engine swap instead due to labor economics.
Estimated cost: $4,500-8,000

Transmission Oil Cooler / Radiator Failure (SMOD - Strawberry Milkshake of Death)

Common · high severity
Typical onset: 60,000-120,000 mi
Symptoms: Pink or milky transmission fluid, Transmission slipping or delayed engagement, Coolant level dropping without external leaks, White smoke from exhaust if coolant enters trans
Fix: Internal radiator failure allows coolant and ATF to mix, destroying transmission. Requires radiator replacement with external trans cooler bypass, full transmission flush or rebuild, and coolant system flush. 8-12 hours labor if caught early; 16-24 hours if trans is damaged. Preventive external cooler install is 2-3 hours.
Estimated cost: $1,200-6,500

Timing Chain Tensioner / Guide Wear

Occasional · high severity
Typical onset: 100,000-150,000 mi
Symptoms: Cold-start rattle for 2-5 seconds, Metallic whining or grinding from timing cover, Check engine light for cam/crank correlation codes, Metal shavings in oil filter
Fix: VQ35 primary tensioner and upper guides wear. Requires timing cover removal, new tensioners, guides, chains if stretched, and cam/crank seals. 10-14 hours labor. Must be addressed before catastrophic failure causes valve/piston contact.
Estimated cost: $2,200-3,800

Valve Body / Transmission Solenoid Issues

Occasional · medium severity
Typical onset: 90,000-130,000 mi
Symptoms: Hard or delayed 2-3 or 3-4 shifts, Transmission slipping in 5th gear under load, Check engine light with solenoid performance codes, Limp mode activation
Fix: RE5R05A transmission valve body or individual solenoids fail. Requires pan drop, valve body removal, and solenoid replacement. 4-6 hours labor. Often combined with full fluid/filter service. May need valve body rebuild if passages are worn.
Estimated cost: $800-2,200

Front Lower Control Arm Bushings

Common · low severity
Typical onset: 70,000-110,000 mi
Symptoms: Clunking over bumps from front suspension, Steering wander or vague on-center feel, Uneven inner tire wear, Steering wheel off-center after alignment
Fix: Rubber bushings deteriorate; arms are not serviceable so full arms required. 3-4 hours labor for both sides including alignment. OE Nissan arms recommended over aftermarket for longevity.
Estimated cost: $800-1,400

Crankshaft Position Sensor Failure

Occasional · medium severity
Symptoms: No-start condition with cranks but won't fire, Intermittent stalling when hot, Check engine light for crank sensor circuit, Extended cranking before start
Fix: Sensor behind starter or on bell housing fails from heat. 1.5-2.5 hours labor depending on location. Starter removal often required for access. Always replace with OE Nissan part.
Estimated cost: $250-450
Owner tips
  • Check oil level every 500 miles after 80k — early detection of consumption can save the engine
  • Install external transmission cooler and bypass internal radiator cooler immediately if not done — $300-500 preventive vs $6k+ repair
  • Use Nissan Matic-S ATF only, never universal fluids — wrong fluid accelerates valve body wear
  • Inspect timing chain condition with borescope at 100k if cold-start rattle present
  • Keep detailed service records — oil consumption warranty extensions required proof of 3k mile oil changes
Buy only with documented timing chain service, external trans cooler, and zero oil consumption — budget $3-5k for deferred maintenance on any other example.
AI-assisted summary drawn from NHTSA recall data, our labor-times database, and platform knowledge. Not a substitute for a pre-purchase inspection on a specific vehicle.

Labor Times — 2007 Infiniti FX35

481 jobs across 17 categories

body (30)

brakes (36)

cooling (21)

drivetrain (24)

electrical (75)

engine (67)

exhaust (22)

hvac (23)

interior (24)

maintenance (32)

steering (19)

suspension (47)

transmission (30)

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