1997 BMW 740iL

Introduction to the 1997 BMW 740iL

The 1997 BMW 740iL is a luxurious full-size sedan known for its powerful performance, opulent interior, and advanced technology. It comes equipped with a 4.4-liter V8 engine producing 282 horsepower and 310 lb-ft of torque, paired with a 5-speed automatic transmission. The 740iL received praise for its smooth and responsive handling, spacious cabin, and technological innovations. However, it has also been criticized for its high repair costs and susceptibility to certain mechanical issues.

Engine

4.4L V8

• Timing Chain Tensioner Failure:
  • Description/Symptoms: Rattling or knocking noise from the engine, especially during cold starts. Poor engine performance and reduced power.
  • Solution: Replace timing chain tensioner.
  • Estimated Cost to Fix: $1,000 - $2,000+
  • Recalls: N/A
• Intake Manifold Gasket Leak:
  • Description/Symptoms: Engine coolant or oil leaking from the intake manifold area. Coolant loss and oil contamination.
  • Solution: Replace intake manifold gasket.
  • Estimated Cost to Fix: $500 - $1,000
  • Recalls: 04V306000

Transmission

5-Speed Automatic

• TCC Lock-up Solenoid Failure:
  • Description/Symptoms: Transmission slipping or delayed engagement. Increased transmission temperatures.
  • Solution: Replace TCC lock-up solenoid.
  • Estimated Cost to Fix: $500 - $1,000
  • Recalls: N/A

Suspension

• Rear Subframe Attachment Points Weakening:
  • Description/Symptoms: Cracked or weakened subframe attachment points, causing handling issues and potential suspension failure.
  • Solution: Reinforce or replace subframe attachment points.
  • Estimated Cost to Fix: $2,000 - $5,000+
  • Recalls: 00V147000
• Rear Control Arm Bushings Premature Wear:
  • Description/Symptoms: Excessive play in the rear suspension, causing handling and stability issues.
  • Solution: Replace rear control arm bushings.
  • Estimated Cost to Fix: $400 - $800
  • Recalls: N/A

Electrical

• Battery Drain Issue:
  • Description/Symptoms: Battery draining overnight or even after short periods of non-use.
  • Solution: Diagnose and repair electrical component causing drain (e.g., electronics module, trunk light switch).
  • Estimated Cost to Fix: $200 - $1,000+
  • Recalls: N/A

Exterior

• Clearcoat Peeling or Fading:
  • Description/Symptoms: Clearcoat on exterior panels fading or peeling, especially in areas exposed to sunlight.
  • Solution: Repaint affected panels.
  • Estimated Cost to Fix: $1,000 - $3,000+
  • Recalls: N/A

Interior

• Switchgear Malfunctions:
  • Description/Symptoms: Malfunctioning switches or buttons for various controls, such as windows, seats, or climate control.
  • Solution: Replace faulty switches or modules.
  • Estimated Cost to Fix: $200 - $500+ per switch
  • Recalls: N/A
• HVAC Blower Motor Failure:
  • Description/Symptoms: Blower motor not functioning, resulting in no airflow or reduced airflow from the HVAC system.
  • Solution: Replace blower motor.
  • Estimated Cost to Fix: $300 - $600
  • Recalls: N/A

Summary

The 1997 BMW 740iL is a luxurious and high-performance sedan, but it is not without its drawbacks. The vehicle suffers from several common issues, particularly related to the engine, suspension, and electrical systems. The timing chain tensioner failure is a serious and potentially expensive issue that requires prompt attention. The rear subframe attachment point weakening is also a major concern, which can lead to catastrophic suspension failure. In addition, the vehicle is prone to electrical problems and premature wear of certain components. While repair costs can be significant, the 740iL remains a popular choice among enthusiasts who value its performance and luxury.