Top 10 Maintenance Alerts for Mercedes 4 and 5 Cylinder Diesel Engine Heads

This includes the 220D, 240D, 300D, 300CD, 300TD and 300SD diesel models from 1969 to 1985. For you diesel owners, there may be a couple in here that you are not aware of. For links to the products and solutions discussed in each alert, click on SHOW MORE. 1. Loose cap bolts: engine oil 2. Pre-chamber fuel leaks: 3. Valves won’t adjust: adjustment 4. Loose and leaking manifolds: manifold 5. Oil leaking by valve guide seals: guide seals 6. Avoid excessive pre-chamber carbon build-up: 7. Stop valve cover oil leaks: valve cover 8. Oil leaking out of head gasket: https://merce