The 2008 Infiniti EX35 introduced sporty styling and responsive handling to the luxury crossover segment, quickly earning a loyal following. Like many models from that era, it can develop specific issues over high mileage that owners should understand before buying or driving for long distances.
Below is a detailed overview of common 2008 Infiniti EX35 problems, focusing on key areas such as the automatic transmission, all-wheel-drive system, electrical components, and suspension parts. Use this information to assess reliability and maintenance needs.
| Issue Category | Typical Symptom | Likely Causes | Common Fixes |
|---|---|---|---|
| Automatic Transmission | Delayed engagement, slipping, rough shifts | Low or contaminated fluid, worn solenoids, aging valve body | Fluid change, transmission service, solenoid replacement |
| All-Wheel Drive | Noticeable vibration, noise from front wheels, error lights | Coupling wear, driveshaft imbalance, differential issues | Driveshaft inspection, CV joint replacement, differential service |
| Electrical & Infotainment | Malfunctioning navigation, radio reset, power window faults | Wiring harness chafing, head unit glitches, switch failures | Wiring inspection, head unit reset or replacement, switch repair |
| Suspension & Steering | Rough ride, wandering steering, uneven tire wear | Worn bushings, loose steering rack, bad wheel bearings | Bushing replacement, steering alignment, bearing service |
Automatic Transmission Behavior And Reliability
The automatic transmission in the 2008 Infiniti EX35 relies on precise fluid pressure and modern solenoid control to shift smoothly. Over time, contamination and worn parts can disrupt this balance, leading to hesitation or slipping that owners often notice during city driving.
Common transmission complaints include delayed movement when shifting from Park to Drive, sudden rpm spikes without corresponding speed gain, and harsh shift events in Sport mode. These symptoms are often tied to fluid condition, but persistent issues may point toward failing solenoids or internal clutch packs that require professional diagnosis.
Regular transmission fluid changes using the correct fluid type, along with periodic inspections of lines and the torque converter, help extend the life of the 2008 EX35’s powertrain. Addressing problems early can prevent more extensive repairs and keep the crossover performing confidently on various road types.
All-Wheel Drive And Drivetrain Nuances
The intelligent all-wheel-drive system in the 2008 EX35 is designed to optimize traction in different driving conditions by varying torque distribution. However, the coupling and related components can wear, especially with high mileage or aggressive driving, leading to subtle changes in drivability.
Some drivers report a faint vibration through the steering wheel or a slight pull to one side, particularly during steady highway cruising. These sensations can stem from minor driveline imbalances, worn CV joints, or differential wear, making it important to inspect both front and rear axle assemblies during service.
Staying on top of factory-recommended driveline service intervals and addressing any unusual noises promptly helps maintain the system’s reliability. Early intervention on driveshaft, CV joint, or differential issues can save owners from more costly repairs down the road.
Electrical System And Infotainment Issues
Electrical gremlins are not uncommon in 2008 Infiniti EX35 models, particularly as the vehicle ages and wiring harnesses experience heat cycles and movement. Owners may encounter intermittent power loss to accessories, unexpected radio resets, or navigation system freezes that disrupt daily convenience.
The navigation unit, in particular, can become unresponsive or display outdated maps, which may be due to software glitches or a failing head unit. Similarly, power windows and central locking systems can act up when switches degrade or the control module develops intermittent faults.
A thorough inspection of the main wiring harnesses, especially around doors and the dashboard area, can identify chafed or corroded connections. Resetting modules, updating software, or replacing faulty switches often restores proper function without the need for major repairs.
Suspension, Steering, And Ride Quality
Over time, the suspension components of the 2008 EX35 can wear, leading to changes in ride height, handling precision, and tire contact patch consistency. Owners may notice increased road chatter, reduced steering feedback, or uneven tire wear that points toward bushing or bearing issues.
The steering rack and its associated mounts are also subject to fatigue, especially on higher-mileage examples. Loose play in the steering column or vague steering feel can develop, which not only affects comfort but also compromises safety during cornering or emergency maneuvers.
Routine alignment checks, bushing replacements, and timely attention to any new steering or suspension noises can preserve the sporty character of the EX35. Addressing these concerns early helps maintain both ride quality and tire longevity.
Key Takeaways And Recommendations
- Monitor transmission fluid condition and follow the recommended service intervals to preserve shifting quality.
- Inspect driveshaft and CV joint assemblies at first sign of vibration or clicking noises while turning.
- Check electrical connectors and update infotainment software if you experience system resets or navigation faults.
- Address steering and suspension noises early to avoid uneven tire wear and maintain handling precision.
- Consider a pre-purchase inspection focused on these common 2008 EX35 problem areas when buying a used model.
FAQ
Reader questions
Why does my 2008 Infiniti EX35 hesitate before moving into drive?
This hesitation is commonly caused by low or degraded transmission fluid, a failing torque converter, or worn transmission solenoids. A fluid service and diagnostic scan often reveal the specific faulty component.
What is causing a vibration through the steering wheel while cruising?
Vibration at steady speeds typically indicates a driveshaft imbalance, a failing CV joint, or a minor differential issue that becomes noticeable as the vehicle accumulates miles.
Why does the navigation screen freeze or reset frequently?
Navigation freezes are usually due to outdated software, a failing head unit, or loose wiring in the dashboard harness. A software update or harness inspection often resolves the problem.
My power windows are slow or inconsistent—what should I check?
Slow or erratic power window operation often stems from worn switches, a failing motor, or a loose connection in the door jamb wiring. Testing the switch and motor supply will pinpoint the issue.