1991 BMW 318i

Introduction:

The 1991 BMW 318i, a compact luxury sedan, is powered by a 1.8-liter inline-four engine paired with a 5-speed manual or 4-speed automatic transmission. The engine produces 115 horsepower and 114 lb-ft of torque. This model combines sporty handling with a comfortable interior, making it a popular choice among enthusiasts. However, it faces some common issues, especially in older vehicles.

Engine

1.8L Inline-Four

• Oil Leaks: Oil leakage from the valve cover gasket and oil filter housing gasket is a common issue.
  • Solution: Replace the faulty gaskets.
  • Estimated Cost to Fix: $200 - $300+ Recalls:
  • 91E001 Loss of Power Assist
  • 91E007 Blower Switch
  • 91E004 Plastic Sheet Transmission
  • 91E009 Free-Wheeling Diodes
  • 91E010 Anti-Lock Braking System
• Timing Chain Tensioner Failure: The timing chain tensioner can fail, causing the timing chain to skip or break.
  • Solution: Replace the timing chain tensioner and timing chain.
  • Estimated Cost to Fix: $800 - $1200+ Recalls: None Found
• VANOS System Issues: The Variable Valve Timing (VANOS) system can experience issues with the VANOS solenoids or camshaft adjuster, leading to reduced engine performance.
  • Solution: Replace the faulty VANOS solenoids or camshaft adjuster.
  • Estimated Cost to Fix: $400 - $600+

Transmission

5-Speed Manual

• Clutch Wear: Premature clutch wear can occur in heavy-duty applications.
  • Solution: Replace the clutch.
  • Estimated Cost to Fix: $600 - $800+

4-Speed Automatic

• Transmission Slipping: The transmission may slip under load due to worn clutches or a faulty torque converter.
  • Solution: Rebuild or replace the transmission.
  • Estimated Cost to Fix: $1200 - $2000+ Recalls: None Found
• Shift Solenoid Failure: The shift solenoids can malfunction, resulting in hard or delayed shifts.
  • Solution: Replace the faulty shift solenoids.
  • Estimated Cost to Fix: $200 - $400+

Suspension

• Control Arm Bushing Wear: Worn control arm bushings can lead to a rough ride and poor handling.
  • Solution: Replace the worn bushings.
  • Estimated Cost to Fix: $300 - $500+
• Strut Mount Bearing Failure: The strut mount bearing can fail, causing a clunking noise and reduced suspension performance.
  • Solution: Replace the strut mount bearing.
  • Estimated Cost to Fix: $200 - $400+

Electrical

• Alternator Failure: The alternator can fail, leading to battery discharge and electrical issues.
  • Solution: Replace the alternator.
  • Estimated Cost to Fix: $400 - $600+
• Starter Motor Failure: The starter motor can fail, resulting in difficulty starting the engine.
  • Solution: Replace the starter motor.
  • Estimated Cost to Fix: $300 - $500+
• Battery Drain: A parasitic battery drain can discharge the battery when the car is parked.
  • Solution: Identify and eliminate the source of the battery drain.
  • Estimated Cost to Fix: $100 - $400+

Exterior

• Door Lock Actuator Failure: The door lock actuators can fail, making it difficult to lock or unlock the doors.
  • Solution: Replace the faulty door lock actuator.
  • Estimated Cost to Fix: $200 - $400+
• Power Window Motor Failure: The power window motors can fail, causing the windows to become inoperable.
  • Solution: Replace the faulty power window motor.
  • Estimated Cost to Fix: $150 - $300+

Interior

• Climate Control Unit Malfunction: The climate control unit may malfunction, affecting the heating and cooling system.
  • Solution: Repair or replace the faulty climate control unit.
  • Estimated Cost to Fix: $400 - $800+

Summary:

The 1991 BMW 318i is a reliable and fun-to-drive car, but it does have some common issues that can arise with age. While the engine and transmission problems can be costly to repair, most of the other issues are relatively minor and affordable to fix. Overall, the 318i remains a solid choice for those looking for a compact luxury sedan with a blend of performance and comfort.