My car is hard starting after it sits overnight....crank crank crank... Did a compression test
150
160
150
145
140
150

I have had overheating issues and was concerned with head gasket issue...no oil/water mix.

What should I expect my compression to be from a 175K engine?
Thanks
Warren

That seems pretty good for that many miles, without giving you a specific answer. On a new one you'd expect 200ish, so you are pretty good.

One suggection, given the symptom, is to check the OVP fuse. You can do a search on it. If it starts hard and runs kinda poorly until it's warmed up, it would be worth a quick check of that fuse.
Gilly

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thanks...should I do the "wet" test?

Up to you, hows the ovp fuse?

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checking it tomorrow Had a broken plug wire...the wire slipped out of the ceramic housing.. A ***** to get back on..if I can at all!!!

I changed plugs, removed ovp, checked fuse, cleaned connectors, repaired broken plug wire...crossed fingers...and it started right up!! Runs fine...we will see.

Thanks
Warren

Runs fine without an OVP?

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1988 California version 260E (W124)
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Past Mercedes-Benz:
1986 190E Baby Benz
1967 230 Inherited from mom when she downsized
1959 220S Introduced me to the joys of keepin' 'em goin'

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I cleaned it up and put it back in...don't know if it was the problem because I was doing a number of other things too. But it is starting great. Will keep an eye on it and buy a spare.