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2008 BMW 535i

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By Research the Car 4 min read

The 2008 BMW 535i is a mid-size luxury sedan known for its engaging driving dynamics and upscale features. The 535i is equipped with a 3.0-liter twin-turbocharged inline-6 engine (N54) producing 300 horsepower and 300 lb-ft of torque. Other engine options for the 2008 5 Series include the 528i with a naturally aspirated inline-6 and the 550i with a V8. Transmission choices include a 6-speed manual and a 6-speed automatic. People generally appreciate the 535i for its performance, handling, and luxurious interior. Common dislikes include the potential for high maintenance costs and some reliability concerns.

Engine

N54 3.0L Twin-Turbo Inline-6

  • High Pressure Fuel Pump (HPFP) Failure
    • Description/Symptoms: Long cranks, rough idle, hesitation upon acceleration, and potential limp mode. Check engine light is usually present.
    • Solution: Replacement of the HPFP. BMW issued several recalls and extended warranties for this issue.
    • Estimated Cost to Fix: $800 - $1500+
    • Recalls: SIB 13 07 09
  • Fuel Injector Issues
    • Description/Symptoms: Rough idle, misfires, fuel smell, poor fuel economy. These direct injectors are prone to failure and leaking.
    • Solution: Replacement of faulty injectors. It is often recommended to replace all injectors on a bank to ensure balanced fuel delivery.
    • Estimated Cost to Fix: $200 - $500 per injector (parts and labor)
    • Recalls: SIB 13 09 12
  • Turbocharger Wastegate Rattle/Failure
    • Description/Symptoms: Rattling sound coming from the engine bay, particularly noticeable at idle or low speeds. Reduced boost and performance if the wastegates are not sealing properly.
    • Solution: Replacement of the turbochargers or rebuilding the wastegates (if possible).
    • Estimated Cost to Fix: $2000 - $4000+ (turbocharger replacement)
    • Recalls: None Found
  • Oil Leaks (Valve Cover Gasket, Oil Filter Housing Gasket, Oil Pan Gasket)
    • Description/Symptoms: Visible oil leaks on the engine, burning oil smell, low oil level.
    • Solution: Replacement of the leaking gaskets.
    • Estimated Cost to Fix:
      • Valve Cover Gasket: $300 - $600
      • Oil Filter Housing Gasket: $200 - $400
      • Oil Pan Gasket: $600 - $1200+ (requires dropping the subframe)
    • Recalls: None Found
  • VANOS Solenoid Failure
    • Description/Symptoms: Rough idle, poor performance, engine hesitation, check engine light.
    • Solution: Replacement of the VANOS solenoids.
    • Estimated Cost to Fix: $200 - $500
    • Recalls: None Found

Transmission

6-Speed Automatic (GA6HP19Z)

  • Mechatronic Sleeve Leak
    • Description/Symptoms: Transmission fluid leak, rough shifting, slipping gears, transmission malfunction warning.
    • Solution: Replacement of the mechatronic sleeve and fluid service.
    • Estimated Cost to Fix: $300 - $600
    • Recalls: None Found
  • Valve Body Issues
    • Description/Symptoms: Erratic shifting, delayed engagement, harsh shifts, slipping, limp mode.
    • Solution: Valve body replacement or rebuild.
    • Estimated Cost to Fix: $800 - $2000+
    • Recalls: None Found

Suspension

  • Control Arm Bushing Failure
    • Description/Symptoms: Clunking noises from the suspension, especially over bumps. Poor handling and steering response.
    • Solution: Replacement of the control arms or just the bushings (depending on condition).
    • Estimated Cost to Fix: $300 - $800 per control arm
    • Recalls: None Found
  • Rear Air Suspension Issues (if equipped)
    • Description/Symptoms: Sagging rear end, failure to maintain ride height, compressor malfunction.
    • Solution: Replacement of air springs, compressor, or related components.
    • Estimated Cost to Fix: $500 - $1500+
    • Recalls: None Found

Electrical

  • Battery Drain Issues
    • Description/Symptoms: Dead battery, car not starting, electrical malfunctions.
    • Solution: Diagnose and repair the source of the parasitic drain. Common culprits include faulty modules, aftermarket accessories, and the IBS (Intelligent Battery Sensor).
    • Estimated Cost to Fix: $100 - $500+ (depending on the source of the drain)
    • Recalls: None Found
  • iDrive System Malfunctions
    • Description/Symptoms: Screen freezes, system reboots, navigation issues, loss of audio.
    • Solution: Software update, replacement of the iDrive controller or head unit.
    • Estimated Cost to Fix: $200 - $1000+
    • Recalls: None Found
  • Comfort Access Issues
    • Description/Symptoms: Keyless entry and start not working reliably or at all.
    • Solution: Replacement of door handle sensors or related modules.
    • Estimated Cost to Fix: $300 - $800+ per handle
    • Recalls: None Found

Exterior

  • Door Lock Actuator Failure
    • Description/Symptoms: Door not locking or unlocking properly, requiring manual operation.
    • Solution: Replacement of the door lock actuator.
    • Estimated Cost to Fix: $200 - $500 per door
    • Recalls: None Found

Interior

  • Sunroof Issues
    • Description/Symptoms: Sunroof not opening or closing properly, getting stuck, or leaking.
    • Solution: Repair or replacement of the sunroof motor, cables, or assembly.
    • Estimated Cost to Fix: $300 - $1000+
    • Recalls: None Found

Summary:

The 2008 BMW 535i, while offering a compelling blend of performance and luxury, is prone to certain reliability issues, particularly with the N54 engine. The HPFP, fuel injectors, and turbochargers are known failure points that can result in significant repair costs. The automatic transmission can also suffer from problems related to the mechatronic sleeve and valve body. Suspension and electrical issues are also common. Overall, the 2008 535i can be an enjoyable car to own, but potential buyers should be aware of the potential for costly repairs and maintenance.

BMW, 535i
BMW 535i 2008
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