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#1
09-23-2010, 02:01 AM
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190d odd instrument behavior on my commute home
while driving home today from work, i noticed that my gauges (fuel, temp, oil pressure) would jump every time i pressed on the Brake pedal. once i saw it i started watching it, and then at a light when i came to a complete stop they all dropped to zero. when i released the brake and started moving they did not return to their normal positions. they were all just at zero.
I felt uncomfortable driving with zero oil pressure (even though i knew it was a fake value), so i pulled over and turned off the car, turned it back on and the gauges were back. i started driving and the same thing happened again. What could be going on? i also noticed that my AC would turn off and on. to be more clear, i would hear the cabin fan kick off and then back on. the air would get warm as the compressor kicked off as well. i then stuck my head out the window and i am hearing an odd sound. i think it sounds like brushes. i am wondering if this whole thing has to do with my alternator... I tried searching on the forum but was not finding anything like this. cheers
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 Grey '91 350SDL 214k Dad's car Beige '81 240D 4 Speed 254k SOLD Blue '82 300D 225k SOLD White '95 E300D 46k SOLD Blue '87 190D 2.5 Turbo 315k SOLD Brown '80 240D 4 Speed 716k SOLD Beige '80 300D N/A 119k SOLD Blue '85 300D Model 186k T-Boned 
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#4
09-23-2010, 08:36 AM
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there were some posts lately regarding ovp relays for 190D's and i dont think that my year (1987) has one. i will have to search that topic and find out though. off to work, we will see how she does today.
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Grey '91 350SDL 214k Dad's car Beige '81 240D 4 Speed 254k SOLD Blue '82 300D 225k SOLD White '95 E300D 46k SOLD Blue '87 190D 2.5 Turbo 315k SOLD Brown '80 240D 4 Speed 716k SOLD Beige '80 300D N/A 119k SOLD Blue '85 300D Model 186k T-Boned
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#5
09-23-2010, 12:32 PM
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Ground Strap
Quote:
X-2, I had the problem on my 85 300D, it was the ground strap. remove it and clean the contact areas. Charlie
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there were three HP ratings on the OM616... 1) Not much power 2) Even less power 3) Not nearly enough power!! 240D w/auto Anyone that thinks a 240D is slow drives too fast. 80 240D Naturally Exasperated, 4-Spd 388k DD 150mph spedo 3:58 Diff We are advised to NOT judge ALL Muslims by the actions of a few lunatics, but we are encouraged to judge ALL gun owners by the actions of a few lunatics. Funny how that works
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#6
09-23-2010, 01:54 PM
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I will have to check that today when i get home. While driving this morning, i was listening to my AC system. The Fan Control works, and i can change it from 1 to 5, but every 40 seconds a "Click" is heard and then the Air stops blowing for about 2 seconds. My AC system is pretty much inoperable right now. Is that died to the ground strap as well, or am i looking at a dead or dying Climate Control Device?
cheers
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Grey '91 350SDL 214k Dad's car Beige '81 240D 4 Speed 254k SOLD Blue '82 300D 225k SOLD White '95 E300D 46k SOLD Blue '87 190D 2.5 Turbo 315k SOLD Brown '80 240D 4 Speed 716k SOLD Beige '80 300D N/A 119k SOLD Blue '85 300D Model 186k T-Boned
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#7
09-25-2010, 01:25 AM
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Solved, it was Fuse #9
So after driving home today from my commute, i was told by another driver that my brake lights were not working. i know that i was having some issue with my instruments all dropping to zero when i depress the brake, but was not aware that the brake lights were affected as well.
So i got it on the ramps and cleaned the ground strap. tested and still no go. so next i checked the fuse and sure enough fuse #9 relates to instrument panel, brake lights and something AC related. This were all my problems that i had notice and after replacing it they all worked again. I went ahead and just replaced every single fuse i could. i will buy more fuses and remember to check them first every time i have some electrical gremlin. Cheers and thanks for all those that helped out.
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Grey '91 350SDL 214k Dad's car Beige '81 240D 4 Speed 254k SOLD Blue '82 300D 225k SOLD White '95 E300D 46k SOLD Blue '87 190D 2.5 Turbo 315k SOLD Brown '80 240D 4 Speed 716k SOLD Beige '80 300D N/A 119k SOLD Blue '85 300D Model 186k T-Boned
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