1999 BMW 740i

Introduction:

The 1999 BMW 740i is a luxury sedan that was lauded for its powerful engine, refined handling, and spacious interior. Its naturally aspirated 4.4L V8 engine produces 282 horsepower and 324 lb-ft of torque, paired with a standard 5-speed automatic transmission. Other engine and transmission options included the 4.0L V8 with a 4-speed automatic and the 2.5L Diesel with a 5-speed manual. Owners appreciate the 740i’s impressive performance, comfortable ride, and high-quality materials, but some have experienced issues with various components.

Engine

4.4L V8 5-Speed Automatic

• Crankshaft Position Sensor Failure: Crankshaft position sensor malfunctions can lead to starting difficulties, intermittent stalling, and rough idling.
  • Solution: Replace the crankshaft position sensor.
  • Estimated Cost to Fix: $200 - $300+
  • Recalls: None Found
• Van Damper Failure: The van damper, located in the intake manifold, may fail, causing excessive vibration and noise.
  • Solution: Replace the van damper.
  • Estimated Cost to Fix: $500 - $1,000+
  • Recalls: None Found
• Valve Cover Gasket Leak: The valve cover gasket may develop leaks, resulting in oil seepage.
  • Solution: Replace the valve cover gasket.
  • Estimated Cost to Fix: $300 - $500+
  • Recalls: None Found

4.0L V8 4-Speed Automatic

• Timing Chain Guide Failure: The timing chain guide may fail, causing the timing chain to jump or break. This can result in catastrophic engine damage.
  • Solution: Replace the timing chain guide and tensioner.
  • Estimated Cost to Fix: $2,500 - $4,000+
  • Recalls: None Found
• Oil Filter Housing Leak: The oil filter housing may develop cracks or leaks, causing oil to leak out.
  • Solution: Replace the oil filter housing.
  • Estimated Cost to Fix: $200 - $500+
  • Recalls: None Found

2.5L Diesel 5-Speed Manual

• Fuel Injector Failure: Fuel injectors may fail, leading to poor engine performance, reduced power, and increased fuel consumption.
  • Solution: Replace the faulty fuel injector(s).
  • Estimated Cost to Fix: $300 - $500+ per injector
  • Recalls: None Found

Transmission

5-Speed Automatic

• Transmission Solenoid Failure: Transmission solenoids may fail, causing shifting problems, delayed engagement, or slipping.
  • Solution: Replace the faulty transmission solenoid(s).
  • Estimated Cost to Fix: $500 - $1,000+
  • Recalls: None Found
• Torque Converter Failure: The torque converter may fail, resulting in shuddering, slipping, or complete transmission failure.
  • Solution: Replace the torque converter.
  • Estimated Cost to Fix: $1,500 - $3,000+
  • Recalls: None Found

4-Speed Automatic

• Transmission Fluid Leak: Transmission fluid leaks can occur at the pan gasket or other seals, causing fluid loss and potential transmission damage.
  • Solution: Repair or replace the leaking component(s).
  • Estimated Cost to Fix: $100 - $500+
  • Recalls: None Found

5-Speed Manual

• Clutch Failure: The clutch may wear out or fail, causing difficulty shifting, slipping, or grinding noises.
  • Solution: Replace the clutch and related components.
  • Estimated Cost to Fix: $800 - $1,500+
  • Recalls: None Found

Suspension

• Front Control Arm Bushing Failure: The front control arm bushings may deteriorate, leading to excessive play and a decrease in handling precision.
  • Solution: Replace the worn bushings.
  • Estimated Cost to Fix: $250 - $500+ per side
  • Recalls: None Found
• Rear Strut Mount Failure: The rear strut mounts may fail, causing excessive noise, vibration, or a harsh ride.
  • Solution: Replace the faulty strut mounts.
  • Estimated Cost to Fix: $300 - $600+ per side
  • Recalls: None Found

Electrical

• Window Regulator Failure: The window regulators may fail, causing windows to become inoperable or difficult to operate.
  • Solution: Replace the faulty window regulator(s).
  • Estimated Cost to Fix: $200 - $500+ per window
  • Recalls: E46-04-02-58043
• Battery Drain: A parasitic battery drain may occur due to faulty electronics or a degrading battery.
  • Solution: Identify and fix the source of the drain, or replace the battery.
  • Estimated Cost to Fix: $100 - $500+
  • Recalls: None Found

Exterior

• Door Handle Failure: The door handles may become loose or break, making it difficult to open the doors.
  • Solution: Replace the faulty door handle(s).
  • Estimated Cost to Fix: $100 - $250+ per handle
  • Recalls: None Found
• Sunroof Drain Plugs Clogging: The sunroof drain plugs may become clogged, leading to water accumulation and potential leaks.
  • Solution: Clear the clogged drain plugs.
  • Estimated Cost to Fix: $0 - $100+
  • Recalls: None Found

Interior

• HVAC Blower Motor Failure: The HVAC blower motor may fail, causing a lack of airflow or excessive noise.
  • Solution: Replace the blower motor.
  • Estimated Cost to Fix: $200 - $500+
  • Recalls: None Found
• Instrument Cluster Pixel Failure: The instrument cluster display may experience pixel failures, resulting in partial or complete loss of display functionality.
  • Solution: Replace the instrument cluster.
  • Estimated Cost to Fix: $500 - $1,000+
  • Recalls: None Found

Summary:

The 1999 BMW 740i can be a rewarding vehicle for those who enjoy its performance and luxury. However, it has seen some mechanical issues over time. The most severe and expensive repairs are related to the engine, transmission, and suspension. The cost of these repairs can range from a few hundred to several thousand dollars. Overall, potential owners should carefully consider the potential expenses associated with maintaining an aging 740i.