Mercedes-Benz, GT Common Issues
1. Faulty Mass Airflow Sensor
Occurrence: 12.5%Cost to repair: $300Symptoms:
Decreased engine performance, rough idling, poor fuel economy
2. Worn or Loose Timing Chain Tensioner
Occurrence: 9.2%Cost to repair: $400Symptoms:
Engine knocking or tapping sounds, decreased power and acceleration
3. Faulty Oxygen Sensor
Occurrence: 11.5%Cost to repair: $250Symptoms:
Decreased engine performance, rough idling, poor fuel economy
4. Transmission Slipping or Delayed Engagement
Occurrence: 8.9%Cost to repair: $900Symptoms:
Transmission slipping or hesitation when shifting gears, unusual noises or vibrations
5. Faulty or Corroded Battery Terminals
Occurrence: 7.3%Cost to repair: $150Symptoms:
Car won't start, slow engine crank, dead battery
6. Bad Fuel Pump
Occurrence: 6.8%Cost to repair: $800Symptoms:
Car won't start, decreased fuel pressure, rough idling
7. Faulty or Worn PCV Valve
Occurrence: 6.2%Cost to repair: $100Symptoms:
Decreased engine performance, rough idling, oil leaks
8. Warranty Expiration on Engine Components
Occurrence: 5.9%Cost to repair: $0Symptoms:
High mileage, warranty expiration, potential for costly repairs
9. Faulty or Worn Alternator Belt
Occurrence: 5.6%Cost to repair: $200Symptoms:
Slow engine crank, dead battery, unusual noises
10. Water Pump Failure
Occurrence: 4.9%Cost to repair: $600Symptoms:
Leaking coolant, overheating engine, increased risk of engine damage
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