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· Registered
1991 500 SE
Joined
·
61 Posts
Guys my 300 did it from when I bought it at 169 000kms - cold and semi-hot starts. If started within 10 min when hot it would start-up smooth. Then at 220 000kms I noticed oil in the coolant - then had the head gasket replaced along with the valve-guides.....
problem solved, hot and cold!!!
My 560 does exactly the same, in fact if I don't step on the gas during a cold start, it will stall. If it sits for more than half hr after warm-up, it would start up by itself but run rough for 4/5 seconds - drive's me nuts!!!
I'm thinking valve guides to be the culprit???
 

· Registered
1991 500 SE
Joined
·
61 Posts
Forgot too mention that the 500 SE is 100% smooth - cold/semi-hot/hot - never misses a beat and never requires a prod on the gas! Must be the lower mileage, and hence unworn valve guides???
 
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