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1992 Mercedes-Benz 190 - Page 6 Questions & Answers
1984 190e humming sound but won't turn over
Sounds like a Starter remove it and test it on the battery keep a tight hold as it turns quit sharpley if it works its possible it could bevthe cylanoid replacevthe full starter its just as cheap mine was 90 pound originall merc part
Mercedes 1987 190E 2.3 serious starting problems.
Have you checked your OVP relay? They can be troublesome for sure. It's located behind the battery under a plastic cover. It'll be the tall relay with the aluminum housing, has a fuse on top, check the fuse first. If the fuse is good then pull the relay and give it a shake, it's not supposed to rattle, good sign it's bad if it does. Sometimes moisture can get back there and cause corrosion to the relay pins and connector. If it pulls out hard then I'd suspect to see some corrosion, most all mercedes electrical connectors are silver plated and turn black when oxidized. If so clean it up by lightly scrubbing with a scotch pad. I've had problems with them before and had luck repairing them myself by removing aluminum shell and reheating all the sauter on pcb carefully. If the printed circuit board looks burned in any way there's a possibility that the electronic components may be toast. May be easier to buy a new ovp relay but they can be pricey. The OVP relay is one of a few possible culprits to your issue, best case scenario imo. Worse case your cylinder compression is too low. Could be a cold start valve issue too. Hope this helps.
Location of wiper motor relay
Hi there my name is Brandon I am a mechanical n electronic engineering technician I am the man reg mechanics call when they cant fix something OK to start its not the rely and its not called in... switch!! It is called wiper control switch and its going out or its in a bin
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