[Exclusive]

I am having a weird issue where I am getting diesel exhaust coming through the a/c vents. Anyone have this issue or know the cause? Never heard of this and trying to pinpoint the issue. Has anyone had a 335D turbo go bad? I heard they fail FAR less frequently than the gas 335i.

[Dan-danGT]

Sounds more like you have exhaust gases passing a seal/gasket and entering your heating system. You won't be able to smell a turbo going faulty. It's more like a gas leak than anything to me

[135i_vs_]

Have your EGR cooler checked out.

[floydarogers]

Originally Posted by 135i_vs_

Have your EGR cooler checked out.

Oooh. Good.

I posted this in the thread you started elsewhere; this is a far better place, not much diesel activity "over there".

You may have two problems
1) No air from the engine compartment should make it to the cabin air intake, it should be sealed by the rubber strip that matches the hood.
2) There have been a few instances of the backpressure sensor's pipe kinking; check the pics in #1 and look in your engine compartment for the same one. http://www.e90post.com/forums/showth...t=backpressure
Part #9: http://www.realoem.com/bmw/showparts...87&hg=13&fg=15

[Exclusive]

wow, thank you for the responses! I noticed that when I have the car in neutral and rev the engine with the hood open, there is some black smoke that comes from the passenger side of the engine. is that normal? sorry for my ignorance - 1st diesel.

Originally Posted by floydarogers

Oooh. Good.

I posted this in the thread you started elsewhere; this is a far better place, not much diesel activity "over there".

You may have two problems
1) No air from the engine compartment should make it to the cabin air intake, it should be sealed by the rubber strip that matches the hood.
2) There have been a few instances of the backpressure sensor's pipe kinking; check the pics in #1 and look in your engine compartment for the same one. http://www.e90post.com/forums/showth...t=backpressure
Part #9: http://www.realoem.com/bmw/showparts...87&hg=13&fg=15

the links in your posts come up as 404 invalid for some reason.

[floydarogers]

Originally Posted by Exclusive

wow, thank you for the responses! I noticed that when I have the car in neutral and rev the engine with the hood open, there is some black smoke that comes from the passenger side of the engine. is that normal? sorry for my ignorance - 1st diesel.

the links in your posts come up as 404 invalid for some reason.

Yes, the backpressure sensor and hose are on the passenger side, near the back of the engine and is just visible next to the engine cover.

Don't know what's up with the links.
1) Go to the N57/M57 diesel subforum, search for "backpressure". It's the one with the title "What hose is this?"
2) Go to www.realoem.com. Drill down to your car, then select "13 fuel preparation system", then "13 15 fuel injection system", then " DIESEL PART.FILTER SENS./MOUNTING PARTS". It's #9

You need to learn about realoem.com anyway

[Exclusive]

Originally Posted by floydarogers

Yes, the backpressure sensor and hose are on the passenger side, near the back of the engine and is just visible next to the engine cover.

Don't know what's up with the links.
1) Go to the N57/M57 diesel subforum, search for "backpressure". It's the one with the title "What hose is this?"
2) Go to www.realoem.com. Drill down to your car, then select "13 fuel preparation system", then "13 15 fuel injection system", then " DIESEL PART.FILTER SENS./MOUNTING PARTS". It's #9

You need to learn about realoem.com anyway

thank you!

[mact3333]

I had this on my 11' and 12' Jetta TDI...both cars did it so it was inherent to the car...one of the reasons why I got rid of my Jetta and bought 335D.

['02onthebrain]

I had the same thing happen last year. Here are all of the parts they threw at it. In the end, they suspected the two gaskets and back pressure pipe caused the whole problem but I got a new DPF and Nox sensors out of it so I was happy. All of my work was done at Thompson BMW in Doylestown, PA if they want to call over to them.

7/17/2012

THROTTLE 1 11717804384 409.67 409.67
O-ring 1 13547792098 3.77 3.77

7/26/2012

Sensor for NOX 1 13628511666 461.38 461.38
Sensor for NOX 1 13628511665 461.38 461.38

10/19/2012

AT-Diesel particulate filter 1 18307808655 2302.56 2302.56
Gasket 1 18307793678 11.24 11.24
Clamp 1 18207793677 45.71 45.71
Gasket 1 18307812171 8.46 8.46
Hex nut wiht flange 2 18307620549 0.9 1.8
Gasket Asbestos Free 3 11627799728 11.73 35.19
Flange nut 12 11627789015 0.59 7.08
Gasket ring 2 7119963129 0.57 1.14
Gasket ring 2 7119905041 0.57 1.14
3M 08180 High Power Brake Cleaner - 14 oz. 2 8180 7.45 14.9
Antifreeze - 1 Gallon - Genuine BMW 1 82141467704 23.95 23.95
ATF Dexron III 1 ATF 12.95 12.95
Pipe, backpressure. 1 13627812806 15.31 15.31
Mixer. 1 18308512438 100.46 100.46
Collar nut 2 11627509731 2.6 5.2
Acoustic cover rear. 1 11147807246 66.9 66.9

[Quasimodem]

Originally Posted by 135i_vs_

Have your EGR cooler checked out.

+1 Maybe cracked EGR cooler.

[Exclusive]

Originally Posted by '02onthebrain

I had the same thing happen last year. Here are all of the parts they threw at it. In the end, they suspected the two gaskets and back pressure pipe caused the whole problem but I got a new DPF and Nox sensors out of it so I was happy. All of my work was done at Thompson BMW in Doylestown, PA if they want to call over to them.

7/17/2012

THROTTLE 1 11717804384 409.67 409.67
O-ring 1 13547792098 3.77 3.77

7/26/2012

Sensor for NOX 1 13628511666 461.38 461.38
Sensor for NOX 1 13628511665 461.38 461.38

10/19/2012

AT-Diesel particulate filter 1 18307808655 2302.56 2302.56
Gasket 1 18307793678 11.24 11.24
Clamp 1 18207793677 45.71 45.71
Gasket 1 18307812171 8.46 8.46
Hex nut wiht flange 2 18307620549 0.9 1.8
Gasket Asbestos Free 3 11627799728 11.73 35.19
Flange nut 12 11627789015 0.59 7.08
Gasket ring 2 7119963129 0.57 1.14
Gasket ring 2 7119905041 0.57 1.14
3M 08180 High Power Brake Cleaner - 14 oz. 2 8180 7.45 14.9
Antifreeze - 1 Gallon - Genuine BMW 1 82141467704 23.95 23.95
ATF Dexron III 1 ATF 12.95 12.95
Pipe, backpressure. 1 13627812806 15.31 15.31
Mixer. 1 18308512438 100.46 100.46
Collar nut 2 11627509731 2.6 5.2
Acoustic cover rear. 1 11147807246 66.9 66.9

tahnk you! I see the back pressure pipe, but which gaskets were you talking about?

['02onthebrain]

These:

Gasket 1 18307793678 11.24 11.24
Gasket 1 18307812171 8.46 8.46
Gasket Asbestos Free 3 11627799728 11.73 35.19


Those are all BMW part numbers so if you google them you can see them on realoem or bmw south atlanta lookups.

[Exclusive]

thank you!

[Exclusive]

Originally Posted by 135i_vs_

Have your EGR cooler checked out.

where is the EGR cooler?

[JDG]

Originally Posted by Exclusive

where is the EGR cooler?

very front center of the engine. aluminum square thing

[JDG]

[Exclusive]

oh ok.. definitely not coming from there.

Has anyone had the gasket between the turbo and the exhaust manifold fail?
P/n: 11657802593

I think that is my issue. Freakin' $70 gasket...

[Exclusive]

had a small hose towards the back of the motor blow off I guess. It was a short larger diameter rubber hose that was just disconnected blowing black smoke. Reconnected it and the problem was solved.

The seal to the interior (where the cowl meets the engine bay) was not sealed properly. Adjusted that and replaced the microfilter. Good as new! I bought $150 worth of new hoses and gaskets and thankfully didn't need them. Thanks for the help.

[TDIwyse]

Originally Posted by Exclusive

had a small hose towards the back of the motor blow off I guess. It was a short larger diameter rubber hose that was just disconnected blowing black smoke.

Interesting. Could you tell us which part specifically? Maybe find it on realoem?

http://www.realoem.com/bmw/partgrp.d...id=51054&hg=11

[FormerRotor]

Was it, by any chance, #9 shown here...
http://parts.bmwofsouthatlanta.com/s...ssembly=420472

[dereknel015]

good luck bro

[Exclusive]

Originally Posted by dereknel015

good luck bro

thanks bro. fixed it back in January of 2014.