Car won't turn off.

[Stephen Rigby]

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]

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

 

[Stephen Rigby]

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]

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.
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]

Unplug the sensor on the end of the fuel rail.

 

[brandwooddixon]

Blocking the air intake is probably easiest for a non-technical person.

 

[Stephen Rigby]

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]

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

 

[Mark A]

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]

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

 

[John Laidlaw]

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..

 

[RhodieBill]

Fire Extinguisher - bye bye engine!

 

[EmilysDad]

Fire Extinguisher - bye bye engine!

Shouldn't be with a CO2

 

[RhodieBill]

Shouldn't be with a CO2

That I'm not sure about, but the most common F/E to be carried is a Dry foam or Powder for Electrical of Flammable.

Watch this Video - you can FF to about 13 minutes if you don't want to watch the whole thing.

 

[EmilysDad]

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

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

 

[EmilysDad]

....
Watch this Video - you can FF to about 13 minutes if you don't want to watch the whole thing.

made a bit of a mess ...

 

[brandwooddixon]

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]

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.

 

[Stephen Rigby]

This is me .
Im fully aware of engines that can run away on sump oil .

 

[EmilysDad]

This is me .
Im fully aware of engines that can run away on sump oil .

you'd need quite a few rags in the intake to stop that!