E-Class (W124) 1984-1995: E 260, E 300, E 320, E 420, E 500 (Includes CE, T, TD models)

Engine Stays On

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Old May 3, 2006 | 05:25 PM
  #1  
Waynec1980's Avatar
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2001 ML55 AMG, 2011 VW Passat, 2001 S500L, 2002 S500L
Engine Stays On

Hello Chaps

I have a E300D and when I take out the key the engine stays on? Any Ideas what it may be?
Stop Solenoid?

Thank You in advance!

Wayne
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Old May 3, 2006 | 05:48 PM
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oneill_1's Avatar
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From: Anaheim
MB 300E | BMW M Coupe
How do you turn your car off?
Is the engine on when you take the key out in the on position or when you put it to the off position?
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Old May 3, 2006 | 06:08 PM
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ashman's Avatar
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From: Sherman Oaks
2004 C240, 2015 GL350 Bluetec
on some of the older diesels, if there is a vaccum leak the car wont shut off. not sure if this applies to your model, but it is something to check. I think all the car's vacuum lines are interconnected for central locking etc.
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Old May 3, 2006 | 07:08 PM
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Eliot's Avatar
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From: Virginia
Range Rover Classic
You could probably even google "Runaway Diesel"
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Old May 4, 2006 | 02:21 AM
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Bigpete123's Avatar
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From: Seattle
1990 300ce
The vacuum pump is most likely the problem (as already mentioned). This happed to my dad's 300sdl when I was on road trip. I'm sure the engine is similarly designed- my dad's had a shut-off lever under the hood... it was in the center of the compartment, and says "STOP" on a red button. push that thing to cut the engine.

My dad's vacuum pump was shot... Another symptom is that the power brakes went out. I don't know if these two systems are linked the same way on the w124 though...

EDIT: and to tack something on to Alon's post... when my dad's vacuum pump went out, the door locks still worked... So they must've been on separate pumps.
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