Exhaust fumes issue

[amebb]

The issue i had was that when the car was running i would get exhaust fumes coming in to the cabin. It was okay when the car was moving but stationary the cabin filled up with fumes.


I changed the exhaust manifold hoping that this would fix the issue. But, it did not fix the issue at all.


So, i was trying to eliminate what the issue could be. I know that the new cast iron exhaust manifold is attached correctly and so is the turbo unit.


I think that the flexi down pipe may be cracked and will need to be replaced.


When i accelerate i get a sqretching sound, almost like a fan belt needing to be replaced.


Has anyone come across this issue?


Also, is there a gasket between the turbo exhaust output to the flexi down pipe?


Any help much appreciated.

Thank you

[getty150]

For me when I experienced this...the culprit was the firewall material that had shrunken from water moisture opened up and allowed engine fumes to also be sucked into the cockpit.

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[amebb]

Originally Posted by getty150

For me when I experienced this...the culprit was the firewall material that had shrunken from water moisture opened up and allowed engine fumes to also be sucked into the cockpit.

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I will have a look tomorrow at the firewall material.

If i look in the engine bay i can see the smoke, smell it and you know its there when your eyes start hurting too...



Thanks

[Clavurion]

Could give the exact specs of the vehicle.

[wpoll]

Also, have you checked the EGR connections and fittings? Exhaust leaks can occur in the EGR pipework etc.

[amebb]

Originally Posted by Clavurion

Could give the exact specs of the vehicle.

BMW E53 X4 year 2004 3.0i diesel automatic.


Hope that helps?

[amebb]

Originally Posted by wpoll

Also, have you checked the EGR connections and fittings? Exhaust leaks can occur in the EGR pipework etc.

I have removed the EGR pipe and blanked off the port on the exhaust manifold.

[X5chemist]

Could it be a burning oil smell? I get a smell on mine now and then. I know the valve cover leaks onto the manifold shield.

[wpoll]

Originally Posted by amebb

BMW E53 X4 year 2004 3.0i diesel automatic...

3.0d ? A 3.0i is a petrol engine.

Originally Posted by amebb

... Also, is there a gasket between the turbo exhaust output to the flexi down pipe? ...

Nope, just a tapered (conical) joint.

[amebb]

Originally Posted by wpoll

3.0d ? A 3.0i is a petrol engine.



Nope, just a tapered (conical) joint.

I suspect that the flexi pipe exhaust is cracked and that is letting out the exhaust fumes.
I will have a look and see what the issue is at the weekend and report back.