BMW, Z4 Common Issues
1. Coolant Leaks
Occurrence: 15%Cost to repair: $800Symptoms:
Visible signs of leakage, overheating engine, and sweet or coolant-like smell
2. Transmission Failure
Occurrence: 12%Cost to repair: $3000Symptoms:
Unusual noises, slipping or hesitation during gear shifts, and inability to engage gears
3. Rear Main Seal Leaks
Occurrence: 10%Cost to repair: $1200Symptoms:
Oil leaks from the rear of the engine, low oil level warnings, and engine overheating
4. Faulty Alternator
Occurrence: 9%Cost to repair: $600Symptoms:
Dim or flickering headlights, slow engine crank, and electrical system malfunctions
5. Air Suspension Failure
Occurrence: 8%Cost to repair: $1500Symptoms:
Ride height issues, uneven tire wear, and harsh ride quality
6. Electronic Stability Control (DSC) Failure
Occurrence: 7%Cost to repair: $1000Symptoms:
Lights on the dashboard indicating DSC system failure, loss of traction control, and increased risk of skidding
7. Rear Brake Failure
Occurrence: 6%Cost to repair: $800Symptoms:
Squealing or grinding noises from the rear brakes, spongy brake pedal, and reduced stopping power
8. Faulty Sunroof Motor
Occurrence: 5%Cost to repair: $700Symptoms:
Failure to open or close sunroof, unusual noises from the roof area, and water leaks
9. Power Steering Failure
Occurrence: 4%Cost to repair: $900Symptoms:
Stiff steering wheel, difficulty turning, and increased effort required to steer the vehicle