2004 BMW 745Li

Introduction:

The 2004 BMW 745Li is a luxury sedan powered by a N62B44 naturally-aspirated V8 engine paired with a ZF 6-speed automatic transmission. The engine produces 325 horsepower and 330 lb-ft of torque.

Owners of the 745Li appreciate its powerful engine, luxurious interior, and smooth ride. However, the vehicle has been known to experience various issues over time.

Engine

N62B44 V8

• Valve Stem Seal Failure:
  • Description/Symptoms: Excessive oil consumption, blue smoke from exhaust
  • Solution: Replace valve stem seals
  • Estimated Cost to Fix: $2,000 - $3,000+
  • Recalls: N/A
• VANOS Solenoid Failure:
  • Description/Symptoms: Rough idle, reduced engine power, check engine light
  • Solution: Replace VANOS solenoids
  • Estimated Cost to Fix: $500 - $1,000
  • Recalls: N/A
• Timing Chain Tensioner Failure:
  • Description/Symptoms: Rattle or grinding noise from engine, reduced engine power
  • Solution: Replace timing chain tensioners
  • Estimated Cost to Fix: $1,500 - $2,500+
  • Recalls: N/A

Transmission

6-Speed Automatic

• Torque Converter Lockup Problems:
  • Description/Symptoms: Shuddering or slipping during gear changes
  • Solution: Replace torque converter
  • Estimated Cost to Fix: $1,200 - $2,000+
  • Recalls: N/A

Suspension

• Air Suspension Compressor Failure:
  • Description/Symptoms: Suspension sagging, reduced ride height
  • Solution: Replace air suspension compressor
  • Estimated Cost to Fix: $1,000 - $1,500
  • Recalls: N/A

Electrical

• Battery Discharge:
  • Description/Symptoms: Battery drains quickly, difficulty starting vehicle
  • Solution: Inspect and replace faulty electrical components
  • Estimated Cost to Fix: $200 - $500+
  • Recalls: N/A

Exterior

• Headlight Condensation:
  • Description/Symptoms: Moisture build-up inside headlights
  • Solution: Replace headlight assembly
  • Estimated Cost to Fix: $500 - $800+
  • Recalls: N/A

Interior

• Door Lock Actuator Failure:
  • Description/Symptoms: Doors won’t lock or unlock properly
  • Solution: Replace door lock actuators
  • Estimated Cost to Fix: $300 - $600
  • Recalls: N/A
• Instrument Cluster Failure:
  • Description/Symptoms: Gauges or displays malfunctioning or flickering
  • Solution: Replace instrument cluster
  • Estimated Cost to Fix: $1,000 - $1,500
  • Recalls: N/A

Summary

The 2004 BMW 745Li is a reliable and luxurious vehicle overall, but it can experience certain issues. Engine and suspension problems seem to be the most common, and repairs can be costly. Owners should be aware of these potential issues and factor in maintenance costs when considering purchasing a 745Li.