190d cant turn if off

[craigs8vgti]

Hi Guy

Got a little prob with me 190d 1991 i cant turn tthe car of i have to stall it ive replace vacumn thing on top of the pump and it not made a difference as any got a clue what else it could be plz :cry:

 

[190]

There are vacuum pipes on the steering lock itself and there is a small unit that screws onto the steering lock to receive the pipes. I would check that the pipes are on ok and there is no leaks in the vacuum system. There is also a small orange cam inside the steering lock to operate the small unit that the vacuum pipes go on to. Also check the small valve at the front of the engine at the brake servo pipe there is a small pipe that connects to the valve along with the brake vacuum pipes if that is off the engine wont stop when you switch the ignition off.

 

[craigs8vgti]

I'll go give it a shot in a min after i've had a cup of coffee thank you for your help 190 8)

 

[TimN]

Not the same vehicle that I used to drive (123 series 240TD) but I had a similar experience after I had removed and reinstalled a head light. I had forgotten to reconnect the vacuum line to the dip mechanism. If you have headlights or central locking that operates via the vacuum system then working on any of these systems can affect the switch off. Any of these systems that do not perform correctly may point you in the right direction.

 

[landover]

Not the same vehicle that I used to drive (123 series 240TD) but I had a similar experience after I had removed and reinstalled a head light. I had forgotten to reconnect the vacuum line to the dip mechanism. If you have headlights or central locking that operates via the vacuum system then working on any of these systems can affect the switch off. Any of these systems that do not perform correctly may point you in the right direction.

This is true i had the same problem with headlamp. No one would beleive that could happen

 

[190]

Check the valve on the front of the engine as i said befor. On the brake servo pipe and make sure that the small pipe is connected the older 190D never had this valve fitted with the small pipe it was a closed vacuum circuit that is why the headlight vacuum pie could prevent your engine from turning off.

 

[craigs8vgti]

Can some 1 send me a diagram so i know what i'm look for i've seen some kind of valve in on a thick pipe coming of the servo is this what i should have a look at

 

[190]

Can some 1 send me a diagram so i know what i'm look for i've seen some kind of valve in on a thick pipe coming of the servo is this what i should have a look at

yes on my 190D
follow the pipe from the servo unit to the engine it should go through a bracket onthe engine and right in the centre of the engine you should see a black and whit valve which is on the servo pipe its only about the size of a ten pence piece with a small pipe comming of the centre of it.

 

[Joseph]

190 diesel would not stop

You need to know at the outset that many functions work on a 190 with vacum not with motors/battery power.
The headlamp go up and down with vacum -
the central locking of all four doors and boot also need vacum and so does the diesel shut off valve to stop the engine.
So you may have noted that many many pipes are running around.

Well, one day last year, mine would not stop either.
I traced all the pipes leading to and from the shut off valve but they all seemd tightly in place.
So I went to Mercedes there is a guy there who I made friends with.
He said imeediatly - Have you changed any head light bulbs recently?
I said yes but what has this got to do with starting.
Hmmmmmm he said, which headlight.
I said the one on the driver's side.
He said where where there is the Wiper water resevoir. Yes.
Well he was right. In the process of replacing the headlamp bulb, I did push out the little pipe supplying vacum to the headlamp.
And so the pressure inside the pipework dropped.
And so that is why it did not stop.
He pluged the pipe into the headlamp and as soon as I switched the Ignition off - Bum ! it stopped.

There you are !

 

[craigs8vgti]

Now it driving me up the wall check all pipes and cannot see any thing wrong any other ideas what it can be :cry:

 

[landover]

Now it driving me up the wall check all pipes and cannot see any thing wrong any other ideas what it can be :cry:

If you are sure all pipes are connected .....Remove the pipe coming from pump at front of engine and suck it .If the engine still does not stop your the pump valve is US.