Anyone having issues with exhaust smell inside the cabin thru heater vent?

[cbakking]

I'm having exhaust smell issues for my 2010 X5M, I just had crank vent hose replaced recently thanks to thread here http://www.xbimmers.com/forums/showthread.php?t=952067 I printed this out and showed it to dealer's SA.
But even after this fix (I just got the car back 2 days ago), I'm still smelling exhaust especially when the car is stopped and when I push gas, I smell exhaust coming thru heater vent, something else going on? other than crankcase vent leak?

Thanks,

[jrmccain]

Yeah, that's kinda strange. Do you have the odor even when the a/c is on recirculate? That should be drawing air from within the cabin so there should be no smell.

I have a AA+ tune with catless dps and never get odor from the vents. I only smell exhaust after I open door or window. I'm surprised you s/a wasn't more proactive to find the solution. Did you take a tech for a ride to let them smell it? If not, I would do that next.

[Crazy1323]

I had this issue. When the injectors were replaced the issue went away

[cbakking]

I got the injectors replaced as well, still smells exhaust fume in cabin, and I don't smell it when it's set on as recirculate.
I'm going to take the car back and see what's going on... could be leaky exhaust header??

[jrmccain]

Originally Posted by cbakking

I got the injectors replaced as well, still smells exhaust fume in cabin, and I don't smell it when it's set on as recirculate.
I'm going to take the car back and see what's going on... could be leaky exhaust header??

Well I know there is a gasket between the turbo and the downpipes, maybe that joint is leaking. But yeah, that's definitely not normal. Have the dealer take a look at it and diagnose.

[dpie]

Originally Posted by jrmccain

Well I know there is a gasket between the turbo and the downpipes, maybe that joint is leaking. But yeah, that's definitely not normal. Have the dealer take a look at it and diagnose.

When i took mine apart to go catless there was no gasket at the turbo/v-band clamp connection nor at the section 1 exhaust connection. I recently purchase the gasket for the exhaust connection after seeing carbon buildup down there when I had my car up on a lift.

[cbakking]

Originally Posted by dpie89

When i took mine apart to go catless there was no gasket at the turbo/v-band clamp connection nor at the section 1 exhaust connection. I recently purchase the gasket for the exhaust connection after seeing carbon buildup down there when I had my car up on a lift.

Thanks guys!!! It turns out exhaust is leaking from between down pipe and cat, leaky gasket.
I'm so glad that they found the source, it was driving me nutzzz.....
I basically printed out you guys' thread and ask them to check that area.

[iconoclast]

Originally Posted by cbakking

Anyone having issues with exhaust smell inside the cabin thru heater vent?

yes, shortly after taking delivery of the vehicle and about a thousand miles or so later an acrid odor would enter the cabin. i returned to the dealer and they replaced pcv, injectors and apparently a plastic cowl was melting. they then replaced the cabin filter. afterwards i did not have any issues with odors or unpleasant scents/fumes entering the cabin.