Mercedes-Benz, GLS Common Issues
1. Coolant leak
Occurrence: 12%Cost to repair: $600Symptoms:
Visible signs of leakage under the radiator, engine overheating
2. Faulty mass air flow sensor
Occurrence: 8%Cost to repair: $350Symptoms:
Reduced engine power, check engine light on, poor fuel economy
3. Transmission slipping or hesitation
Occurrence: 9%Cost to repair: $800Symptoms:
Unusual noises from the transmission, difficulty shifting gears
4. Faulty oxygen sensor
Occurrence: 7%Cost to repair: $200Symptoms:
Check engine light on, poor fuel economy, reduced engine power
5. Rear main seal leak
Occurrence: 11%Cost to repair: $450Symptoms:
Visible signs of leakage near the rear axle, oil spots under the car
6. Faulty heated seats or sunroof
Occurrence: 6%Cost to repair: $300Symptoms:
Heated seats not working properly, sunroof not opening/closing correctly
7. Interior trim and panel issues
Occurrence: 5%Cost to repair: $250Symptoms:
Cracks or breaks in the interior trim panels, faulty dashboard components
8. Faulty door locks or handles
Occurrence: 4%Cost to repair: $150Symptoms:
Difficulty opening or closing doors, faulty door lock mechanisms
9. Rear differential noise or vibration
Occurrence: 3%Cost to repair: $400Symptoms:
Unusual noises from the rear axle area, vibration when driving
10. Faulty backup camera
Occurrence: 2%Cost to repair: $120Symptoms:
Backup camera not displaying image or functioning properly
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