Car won't turn off.

Stephen Rigby

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Your Mercedes
E class 270d.
Hi I have a 53plate e class 270d.
Today the car will not switch off the engine is still running with no key in the ingnition?
It did show a battery fault . Then this.
The wife stuck with it running ??
I'm in work .
Any help please .
 

EmilysDad

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ML350
If it's a manual maybe she could stall it ....

Hopefully it's not running off the the sump oil via failed turbo seals .... perhaps stuff rags into to the air induction pipework & 'suffocate' the engine :confused:
 
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Stephen Rigby

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E class 270d.
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Hi it's a auto gear box .
It's not smoking so I don't think it's sump oil.
It's possibly the fuel shut off valve .
I'm not sure if it's a vacuum type or electrical type .

Thanks .
 

EmilysDad

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ML350
Hi it's a auto gear box .
It's not smoking so I don't think it's sump oil.
It's possibly the fuel shut off valve .
I'm not sure if it's a vacuum type or electrical type .
Thanks .

I don't know either. :confused:
I just remember a knowledgeable neighbour who works in a car dealership had a car that was actually burning its sump oil and after the initial panic of pulling every electrical connection they could see, eventually stuffed rags into the induction pipework which eventually starved it of air which eventually stopped it.
 

Taffy7hfa

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2002 ML 270 CDI,2016 Hyundai1.6 CRDI i30,2014 Peugeot 308 HDI. .6 HDI.
Unplug the sensor on the end of the fuel rail.
 
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Stephen Rigby

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E class 270d.
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After several goes it's switched off.
I'll have a look when I get home .
I need to identify the fuel shut off valve 1st
Thanks
 

John Laidlaw

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Land Rover Discovery 4
Blocking the air intake or starving of fuel are the only ways to stop the engine in these cases- in extreme runaway cases I've known folks blast a Co2 extinguisher into the air intake, too drastic in this case though:rolleyes:
 

Mark A

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Aberdeen
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58 ML-320CDI.
On my W164 ml I had the same issue, pulling one of the relays under the bonnet shut it down straight away. Worst thing you can do is disconnect the battery.
 

Botus

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S500/2010/500
Blocking the air intake is probably easiest for a non-technical person.


very dangerous hobby on a Diesel, you should NEVER get your hands / body near the air intake under any circumstance with it running...

college tutor went super mental when I went to do it many years ago.... apparently the engine carries on but you have no skin / flesh left
 
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John Laidlaw

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Land Rover Discovery 4
very dangerous hobby on a Diesel, you should NEVER get your hands / body near the air intake under any circumstance with it running...

college tutor went super mental when I went to do it many years ago.... apparently the engine carries on but you have no skin / flesh left
Soaked towel is good though..
 

EmilysDad

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ML350
.... but the most common F/E to be carried is a Dry foam or Powder for Electrical of Flammable.
....

Is it? :confused: I can't remember the last time I saw a blue dry powder extinguisher ..... the black CO2 seem far more common.
 

brandwooddixon

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Wolverhampton
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S63 Coupe 2014
So much for air filters then!
Seriously, blocking the air intake is the easiest. With the engine in situ I can't think of a modern engine intake that your hand would fit over, although I wasn't think of that, but perhaps should have clarified my statement.
I was think more likely an item of clothing or similar e.g. a jumper or travel rug. At worst it will get sucked into the induction pipe but even so will be stopped by the air filter, but I doubt that it would get that far.
 

mioba

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W124/E200, W220/S320CDI, W205/C200, W251/R350CDI 4Matic
very dangerous hobby on a Diesel, you should NEVER get your hands / body near the air intake under any circumstance with it running...

college tutor went super mental when I went to do it many years ago.... apparently the engine carries on but you have no skin / flesh left

Good call. whatever you do make sure you know what doing and make sure its safe to do.
 
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Stephen Rigby

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Your Mercedes
E class 270d.
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This is me .
Im fully aware of engines that can run away on sump oil .
 

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