320d e46 just cuts out

[mustbite]

Morning guys
I have a problem with my car, i have posted before about the DDE warning but i found a pipe that had come off , looks like a small rubber air pipe that fits on this round thing wich is part of what looks like a throttle body. Put the pipe back and the car dosent start just white smoke, so it wes off for a reason.
I will appreciate any help i can get to fix the car
Thanks
NEALE

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[Schalk94]

That looks like the egr valve,I reckon you should have it blocked off.

 

[Solo Man]

Yes, please block off the pipe as it is a vacuum pipe and the engine is leaking vacuum through it. Just plug it with a nail or something similar. The egr valve is fine without the pipe connected as it prevents it from opening and thus no more bad gasses from the exhaust going through your engine. I would also as soon as possible remove the swirl flaps in the inlet manifold as they are prone to breaking off and being eaten by the engine. Big repair bill if that happens! Google swirl flaps for further info.

 

[Spannie]

Take the EGR off and see what's wrong with it, may just need a clean. Strange that having the EGR valve plugged in would cause a no-start situation, hows the condition of the other vacuum lines?

 

[mustbite]

Thanks guys for the information
I just bought the car so im not familiar with the engine, i will check all the pipes and clean the egr
I will post later on what the outcome was

 

[kilotango]

Im not sure on the Beemers, but on VW's, the EGR additionally acts as a "anti-shudder" which closes and blocks off the intake when you turn off the key. this is really important on diesels incase of a runaway condition.

imo, you should actually have it working, because if there is a runaway, that is your primary option of starving the engine and cutting it off.

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this is a runaway.. basically:

[video=youtube]

 

[Waseem 333i]

Runaway happens by engine oil getting into the intake. Blown turbo or faulty breather will cause that. If you see the condition of the intake by having the egr working you would not have it connected.

@mustbite where are you located?

 

[kilotango]

Runaway happens by engine oil getting into the intake. Blown turbo or faulty breather will cause that. If you see the condition of the intake by having the egr working you would not have it connected.

@mustbite where are you located?

correct, the EGR butterfly closes off the intake and stops the oil from feeding the engine.

i dont know about that argument hey, to me it seems more about vanity than functionality. i'd rather have a known runaway mitigator in my car, than having a clean intake. runaways do happen, even on new cars unfortunately.

 

[Waseem 333i]

The egr closes the exhaust port to the intake not the intake itself. A blown turbo will push oil into the intercooler then it will get into the intake. If you seriously worried about runaway put the car in 6th gear, stand on the brakes and leave the clutch. That should stall the motor. Or keep a co2 fire extinguisher or find out what that guy did in that video.

 

[kilotango]

The egr closes the exhaust port to the intake not the intake itself. A blown turbo will push oil into the intercooler then it will get into the intake. If you seriously worried about runaway put the car in 6th gear, stand on the brakes and leave the clutch. That should stall the motor. Or keep a co2 fire extinguisher or find out what that guy did in that video.

ok, i stand corrected, its different on the TDI's.. because those clearly have a butterfly valve that closes off the intake completely...with a separate piece that opens and closes the exhaust port side.