Vehicles using M177.980 engine list:

Engine M177.980

Symptoms:
- Loss of power or reduced engine performance
- Rough idling or engine misfires
- Excessive oil consumption or oil leaks
- Check Engine Light (CEL) illumination
- Unusual noises such as ticking or knocking from the engine bay

Diagnosis:
- Inspect for common issues such as faulty ignition coils or spark plugs causing misfires
- Check for oil leaks around valve covers, turbochargers, and oil cooler seals
- Perform a compression test to rule out internal engine wear or damage
- Scan for diagnostic trouble codes (DTCs) related to ignition, fuel delivery, or turbocharger performance
- Examine the turbochargers for shaft play or boost leaks which can cause power loss

Fixes:
- Replace worn or faulty ignition coils and spark plugs to restore smooth engine operation
- Repair or replace leaking gaskets and seals, especially valve cover gaskets and turbocharger oil seals
- Address turbocharger issues by repairing boost leaks or replacing damaged turbo units
- Perform regular oil changes with manufacturer-recommended synthetic oil to prevent sludge buildup and maintain lubrication
- Update engine software if available to improve performance and reliability

Prevention:
- Adhere strictly to the recommended maintenance schedule, including timely oil and filter changes
- Use high-quality fuel and lubricants specified by Mercedes-AMG to reduce carbon deposits and wear
- Monitor engine performance regularly and address minor issues promptly to avoid escalation
- Avoid aggressive driving habits that can stress the engine and turbochargers excessively
- Ensure cooling system is functioning properly to prevent overheating and related engine damage

By following these guidelines, owners of vehicles equipped with the M177.980 engine can maintain optimal performance and minimize common issues associated with this high-performance AMG powerplant.