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  #1  
Old 08-18-2009, 11:15 AM
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Location: New Jersey
Posts: 100
weird chain of events

While Driving Home the other day in 95 E300D noticed that the break pad indicator light was coming on, so i ordered break pads. then yesterday the ABS light, ASD light came on and then the tach stopped working, they all went crazy at the same time. today it works fine.

any ideas what happen
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1995 E300D 384,000,(Betty White) part time greaser, lots of new parts
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  #2  
Old 08-18-2009, 11:39 AM
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You talkin’ to me?
 
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Location: Columbia, MO
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Quote:
Originally Posted by longshore1 View Post
While Driving Home the other day in 95 E300D noticed that the break pad indicator light was coming on, so i ordered break pads. then yesterday the ABS light, ASD light came on and then the tach stopped working, they all went crazy at the same time. today it works fine.

any ideas what happen

Try the OVP (over voltage protection) relay. It is located behind the plastic wall behind the battery - the black plastic wall is removable. Take out the battery, remove the plastic and look for a relay with a clear plastic cube on top that contains a 10A red (? - I think) fuse. Check the fuse first - or the whole relay could be going. Not sure if this is your problem, but a good thing to check out - others will weigh in on this I'm sure.
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'95 E300D ("Tank") - 231,000 miles
'79 240D ("Biscuit") - 197,250 miles (Sold)
'83 240D ("Ding-Ding") - 217,000 miles (Death by deer)
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  #3  
Old 08-18-2009, 12:18 PM
mild insomniac, maybe? :D
 
Join Date: Jul 2007
Posts: 954
Quote:
Originally Posted by longshore1 View Post
While Driving Home the other day in 95 E300D noticed that the break pad indicator light was coming on, so i ordered break pads. then yesterday the ABS light, ASD light came on and then the tach stopped working, they all went crazy at the same time. today it works fine.

any ideas what happen
Hopefully i'm still 262,xxx miles away from this happening to me...

I unfortunately have nothing to input on this topic....

I'm book marking this, just in case.....
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2016 E350 4Matic Black/Black
2007 GL450 4Matic with Off-Road Pkg Silver/Black
1995 E300 Diesel White/Gray
1994 S600 Euro Black/ Black Velour
1986 560SL Blue/Blue/Gray
1986 190E Blue/Blue 93k
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  #4  
Old 08-18-2009, 01:31 PM
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Location: Northeast Indiana
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I keep a known-working OVP relay on the shelf, if you don't need it now, you will.

I've replaced the one in the black '94 twice, with the "new style" both times.
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  #5  
Old 08-18-2009, 04:05 PM
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Join Date: Feb 2004
Location: 32(degrees) North by 81(degrees) West
Posts: 5,554
99.9999 % chance it's the OVP Relay[or it's fuse(s)]

(And his Mogness is a very wise MV Operator.)

All of the replacement OVP relays for your model come with TWO 10Amp fuse
locations
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  #6  
Old 08-18-2009, 06:01 PM
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Join Date: Nov 2004
Location: Nova Scotia, Canada.
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Typical mercedes failure. If you wait a day or so the noise or whatever tends to permanently dissapear. 'First few times really suprised me now only glad I did not have the time available to troubleshoot at the time of the problems.

First time was the charm. Heavy dull thumping towards the rear of the engine. Not good at any time and especially as these engines do not seem to drop carbon chunks. No longer there next morning. Never came back. now I wonder if most the items I repaired would have self rectified if left alone? I believe the slogan built like no other car.

I presently have a transmission that seems to downshift into first a little easier than I like on my 1984 300d. Wait for it to rectify itself or go at it? Almost a flip of the coin. Car was not driven for years until reciently.
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  #7  
Old 08-18-2009, 10:47 PM
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Could also be a failing voltage regulator.

Sixto
87 300D
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  #8  
Old 08-19-2009, 08:53 AM
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Join Date: Dec 2005
Location: New Jersey
Posts: 100
Ok thanks I will check the fuses today, I left the car home today since it acted up again yesterday.
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1995 E300D 384,000,(Betty White) part time greaser, lots of new parts
2004 Ranger XLT
2000 Chocolate Lab-Bad Quarter Panel, lots of miles
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