1992 BMW 735iL

Introduction

The 1992 BMW 735iL is a luxurious sedan with a refined interior and powerful engine. It is powered by a 3.5-liter M30 straight-six engine that produces 215 horsepower and 232 ft-lbs of torque. Power is sent to the rear wheels through a 4-speed automatic transmission. The 735iL is known for its smooth ride, comfortable seats, and spacious interior. However, like many older vehicles, it can be prone to certain issues.

Engine

• 3.5L M30 Straight-Six
  • Intake Manifold Gaskets:
    • Description/Symptoms: Leaking coolant or vacuum, causing engine overheating or rough idle.
    • Solution: Replace intake manifold gaskets.
    • Estimated Cost to Fix: $500 - $1000+
    • Recalls: None Found Transmission
• 4-Speed Automatic
  • Transmission Slipping:
    • Description/Symptoms: Gears slipping or difficulty shifting gears.
    • Solution: Rebuild or replace transmission.
    • Estimated Cost to Fix: $2000 - $3000+
    • Recalls: None Found

Suspension

• Front Control Arms:
  • Description/Symptoms: Worn or damaged bushings causing rattling or clunking noises, uneven tire wear.
  • Solution: Replace control arms.
  • Estimated Cost to Fix: $300 - $600
    • Rear Subframe:
      • Description/Symptoms: Rust or corrosion causing subframe to crack or break, leading to suspension issues and potentially loss of control.
      • Solution: Repair or replace subframe.
      • Estimated Cost to Fix: $2000 - $5000+
      • Recalls: None Found Electrical
• Battery Drain:
  • Description/Symptoms: Battery drains quickly when parked.
  • Solution: Test electrical components and isolate source of drain.
  • Estimated Cost to Fix: $200 - $500
• Power Window Motors:
  • Description/Symptoms: Difficulty or failure to operate power windows.
  • Solution: Replace power window motors.
  • Estimated Cost to Fix: $300 - $600
• Alternator Failure:
  • Description/Symptoms: Electrical system failure, difficulty starting, charging light on dash.
  • Solution: Replace alternator.
  • Estimated Cost to Fix: $700 - $1200
• Camshaft Position Sensor:
  • Description/Symptoms: Engine timing issues, no-start condition, or rough running.
  • Solution: Replace camshaft position sensor.
  • Estimated Cost to Fix: $200 - $300
• Knock Sensor:
  • Description/Symptoms: Engine knock or detonation, reduced engine power, increased emissions.
  • Solution: Replace knock sensor.
  • Estimated Cost to Fix: $250 - $400 Exterior
• Sunroof Leaks:
  • Description/Symptoms: Water leaking into the cabin through sunroof.
  • Solution: Repair or replace sunroof weatherstripping.
  • Estimated Cost to Fix: $200 - $500
• Headlight Switch:
  • Description/Symptoms: Difficulty or failure to operate headlights.
  • Solution: Replace headlight switch.
  • Estimated Cost to Fix: $150 - $250
• Ignition Coil:
  • Description/Symptoms: Engine misfiring, difficulty starting.
  • Solution: Replace ignition coil.
  • Estimated Cost to Fix: $150 - $300
• Fuel Pump Failure:
  • Description/Symptoms: Engine stalling, difficulty starting, low fuel pressure.
  • Solution: Replace fuel pump.
  • Estimated Cost to Fix: $300 - $700 Interior
• Climate Control Panel:
  • Description/Symptoms: Inaccurate temperature control, difficulty adjusting settings.
  • Solution: Repair or replace climate control panel.
  • Estimated Cost to Fix: $300 - $600
• Cruise Control Switch:
  • Description/Symptoms: Cruise control not working or intermittent.
  • Solution: Replace cruise control switch.
  • Estimated Cost to Fix: $200 - $400
• Power Seat Motors:
  • Description/Symptoms: Difficulty or failure to adjust power seats.
  • Solution: Replace power seat motors.
  • Estimated Cost to Fix: $400 - $700

Summary

The 1992 BMW 735iL is a reliable and luxurious sedan, but it is not immune to issues. Some of the more common problems include intake manifold gaskets, transmission slipping, worn control arms, electrical issues, and interior component failures. The severity and cost of these issues can vary depending on the specific part and the extent of the damage. Regular maintenance and repairs can help to prevent or mitigate these issues, ensuring a long and enjoyable ownership experience.