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Old 10-24-2002, 08:44 PM
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drbrandini drbrandini is offline
Join Date: Sep 2001
Location: Wrightsville Beach NC
Posts: 1,512

I have a 1990 300E with the same problem it is fairly common on a higher mileage M103 Motor. Valves guides and seals are in order. But you can go for quite a while with the ticking your experiencing. I recommend going back to the factory spc. 10W 40
The thinner oil gets into tighter spaces to get everything lubed well, in fact this could be your problem have you recently converted to 20W 50? If you go back you may notice the lifter noise disappear!

Happy Motoring

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