Vehicles using M272.940 engine list:

Engine M272.940

Symptoms:
- Rough idling and misfires
- Loss of power or poor acceleration
- Engine warning light (Check Engine Light) illumination
- Oil leaks around the valve cover and camshaft adjusters
- Excessive oil consumption
- Rattling noise from the timing chain area

Diagnosis:
- Inspect for camshaft adjuster solenoid valve faults causing timing issues
- Check for worn or stretched timing chain and guides
- Examine valve cover gasket and camshaft seals for oil leaks
- Perform compression test to rule out cylinder head or valve issues
- Scan for fault codes related to ignition coils, camshaft position sensors, or misfires
- Inspect spark plugs and ignition coils for wear or damage

Fixes:
- Replace faulty camshaft adjuster solenoid valves to restore proper timing control
- Renew timing chain and guides if stretched or worn to prevent rattling and timing errors
- Replace valve cover gasket and camshaft seals to stop oil leaks
- Change spark plugs and ignition coils as needed to resolve misfires
- Clean or replace clogged PCV valve to reduce oil consumption
- Perform regular oil changes with manufacturer-recommended oil to maintain engine health

Prevention:
- Adhere to scheduled maintenance intervals, especially oil and filter changes
- Use high-quality engine oil to reduce sludge and wear
- Monitor and address any early signs of oil leaks promptly
- Avoid extended idling and aggressive driving to reduce engine stress
- Regularly inspect ignition components and replace before failure
- Ensure timely replacement of timing chain components as per service guidelines to avoid catastrophic engine damage