2012 BMW 135i

BMW 135i (2012)

The BMW 135i is a compact luxury sports coupe that was produced by BMW from 2008 to 2013. It is powered by a turbocharged 3.0-liter inline-six engine that produces 300 horsepower and 300 lb-ft of torque. The engine is paired with a six-speed manual transmission or a six-speed automatic transmission. The 135i is known for its performance, handling, and luxurious interior. However, it has also been plagued by a number of issues.

Engine

N54 3.0L Twin-Turbocharged Inline-Six

• High-Pressure Fuel Pump Failure:
  • Description/Symptoms: The high-pressure fuel pump can fail, causing the engine to lose power or stall.
  • Solution: Replace the high-pressure fuel pump.
  • Estimated Cost to Fix: $1,000 - $2,000+
  • Recalls: None Found
• Wastegate Rattle:
  • Description/Symptoms: The wastegates can rattle, especially when the engine is cold.
  • Solution: Replace the wastegates.
  • Estimated Cost to Fix: $500 - $1,000+
  • Recalls: None Found

Transmission

ZF 6-Speed Manual Transmission

• Clutch Slippage:
  • Description/Symptoms: The clutch can slip, causing the car to shudder or lose power when accelerating.
  • Solution: Replace the clutch.
  • Estimated Cost to Fix: $1,200 - $1,800+
  • Recalls: None Found

ZF 6-Speed Automatic Transmission

• Mechatronic Unit Failure:
  • Description/Symptoms: The mechatronic unit can fail, causing the transmission to shift harshly or not shift at all.
  • Solution: Replace the mechatronic unit.
  • Estimated Cost to Fix: $2,000 - $3,000+
  • Recalls: None Found

Suspension

• Front Control Arm Bushings:
  • Description/Symptoms: The front control arm bushings can wear out, causing the car to pull to one side or the other.
  • Solution: Replace the front control arm bushings.
  • Estimated Cost to Fix: $300 - $600+
  • Recalls: None Found

Electrical

• Battery Discharge:
  • Description/Symptoms: The battery can discharge prematurely, leaving the car unable to start.
  • Solution: Replace the battery.
  • Estimated Cost to Fix: $200 - $400+
  • Recalls: None Found

Exterior

• No Issues Found

Interior

• Steering Wheel Switch Failure:
  • Description/Symptoms: The steering wheel switches can fail, causing the cruise control or other functions to stop working.
  • Solution: Replace the steering wheel switch.
  • Estimated Cost to Fix: $200 - $400+
  • Recalls: None Found

Summary

The BMW 135i is a performance-oriented vehicle that is known for its aggressive styling and handling. However, it has also been plagued by a number of issues, some of which are relatively minor and inexpensive to fix, while others are more severe and can be quite costly.