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Re: When changing a fuel relay in a 190e merc does the...
If you are replacing it with an OEM Mecedes relay, I believe it should. I would check with a Benz Dealer parts department, sometimes the do change the number, to reflect a newer designed part.
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# 30 is always direct power from the battery and or ignition switch from the battery to the relay to power the part. #87 is to the part it is sending power to. #85 and #86 can be swapped., One is grounded. The other is power from the ignition switch or any switch. #30 and #87 are the switch in the relay. # 85 and #86 are the coil in the relay. The coil pulls the switch closed to power the part.
There are 2 PDF documents to open - above the photo on the site.
The first - the Routing Guide - shows the reference for the belt diagram (1987 MERC 190E) which is 6-2 on page 92 of the Guide. The second PDF shows the belt diagram for 6-2.
Hope this helps. Cheers Sean Voluntary contributor.
Check the seat belt wiring under your front seats, seat belt pre tensioners are related to the srs system and sometimes with seat adjustment these can become loose. The wires are mostly yellow in colour and if you check all connections are tight this may solve your problem
It is below the tank on the rear passenger side. There is a plastice cover under the car, you have to remove it to expose the filter. It is next to the Fuel Pump.
look for wet spots or stains on the motor !
alsodust & grime could be hiding a leak or a fracture in a fuel line or it could be a leaking fuel injector
check fiewall for loos ao brocken rubber grommets that pipes & wires pass through that could be allowing fumes into the cabin
cheers Rob.
when tracers stop out of the blue like this, it can be a number of things. #1 is fuel pump failure or pump relay, or fuse. check to see if there is perssure at fule rail. check fule pressure regulator. #2 is ignition coil failure, or no spark. check plug wire from coil for spark. that will get you going in right direction. good luck.
I would assume it is the same as my 1983 sun roof. I hade to remove the head liner and it unblots from the uner side. tilt it to the side and remove through the rear door. I hope this helps.
Ok there is a number of things that will stop it from revving past 3k from your description I would check the ignition timing for advance mechanical and vacuum .I don't know when you experience the fault or eg while driving or just free reviving in Neutral . BTW 190e does not have limp home mode so there is a real problem. Hope this helps
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