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#1
11-03-2003, 09:40 AM
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c280 engine stalls HELP
My wife's car stalls when the vehicle is rolling to a stop. This happens intermittently. At first, you could put the car in park and restart the car. Now, sometimes when the car is parked. It will not start. It'll turnover but nothing happens. After 10 minutes of doing nothing... it starts. I took it to my mechanic. He checked out the usually suspect’s ovp, smog hoses, etc. And he said it's difficult to track down the problem because there are no trouble codes. He’s stumped. And he really doesn’t want to start changing parts at random. Any suggestions or comments would be greatly appreciated.
Thank you very much
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Shoebox 
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#2
11-03-2003, 09:50 AM
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Do a double take on the OVP, if it was made is Austria, change it.
Joe
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Project Smoker, '87 603 powered wagon Hauler, 96 CTD can you say torque? Toy 73 Cougar xr7 convertible Acme Automotive Inc. Raleigh NC 919-881-0364
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#4
11-04-2003, 03:08 AM
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Trust us, it's the OVP (Overvolt Protection Relay). THe originals were manufactured in Austria I believe, and the contacts tend to corrode .. it's an easy swap, and you can get if for $60-ish dollars here on Mercedesshop. Just make sure you get the upgrade part!! PN goes from 45 to 67.
Good luck
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2006 E350 w/ 155k miles (Daily Driver) Previous: 1993 300E 3.2L Sedan w/ close to about 300k miles 2003 E500 Brilliant Silver (Had 217k miles when totalled!) 1989 300E with 289,000 miles (had for <1 yr while in HI) 03 CLK 500 cabrio (Mom's) 2006 C230k (Dad's) 1999 S420 (Mom's/Dad's) 2000 C230k Sport sedans 2001 CLK320 Cabrio (Mom's) 1995 C280 My First Mercedes-Benz... (155k miles. EXCEPTIONAL AUTOMOBILE. Was Very hard to let go of!)
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#6
11-04-2003, 10:56 AM
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Might want to change out the OVP anyway. And check the fuel pump relay, as that's another common cause for M104 hiccups. Your symptoms are a little different, but...
Coils also go bad on the M104's, but again the symptoms are a little off, but... The car has a fresh fuel filter and plugs, right?
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John Shellenberg 1998 C230 "Black Betty" 240K http://img31.exs.cx/img31/4050/tophat6.gif
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#8
11-04-2003, 11:52 AM
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Just change the OVP. The original ones are bad, even if it "looks good" to you. I don't believe the replacement OVP's are made in Portugal, either.
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Paul S. 2001 E430, Bourdeaux Red, Oyster interior. 79,200 miles. 1973 280SE 4.5, 170,000 miles. 568 Signal Red, Black MB Tex. "The Red Baron".
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#9
11-04-2003, 03:12 PM
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I will check out the part number tonight and verify if it's the
Old # 000 540-52-45 Austria New- 000 540-67-45 I'm not a big fan of swapping parts until I can verify the source of the problem. And I think I looked at the wrong part this morning. Thanks for all you help.
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Shoebox
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#12
11-04-2003, 05:39 PM
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11-12-2001
Status: Junior Member Total Posts: 24 (0.03 posts per day) Last Post: 11-04-2003 02:12 PM c280 engine stalls HELP Contact Shoebox: Click here to email Shoebox Send Shoebox a Private Message! Homepage: ICQ Number: AOL Instant Messenger Handle: Yahoo Instant Messenger Handle: Birthday N/A Biography Location California Interests Occupation Vehicles 92 300E, 98 C280, 96 Impala SS (sold) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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#13
11-04-2003, 05:41 PM
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Quote:
And by now you'd think that we'd be asking "year and mileage please" without a second thought.
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John Shellenberg 1998 C230 "Black Betty" 240K http://img31.exs.cx/img31/4050/tophat6.gif
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#15
11-04-2003, 07:17 PM
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OK, more food for thought:
OK, I'm not sure on the C Class about the fuel filter. My original train of thought was that on this, the fuel filter has the pressure regulator integrated into it, not 100% sure this is true or not. ***addendum: I see the filter was replaced (on above thread)--DID THE PROBLEM START when the filter was replaced????*** There is a component on the car which in a way substitutes what the OVP does. It's in the control module box, it's called the fuse and relay module (K40 I believe is it's identifier). It may cause this, it has the fuel pump relay in it, etc, helps distribute power to various control modules. What probably should be done is a quick scan for trouble codes, and if nothing there the best next step would probably be to drive the car with a fuel pressure gauge installed and monitor fuel pressure when the car stalls. Another possiblity (because stalling is rather rare on the M112 engine) is maybe the throttle motor (actuator). Gilly Gilly
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