Egr cooler delete 335d e92 -2007

Egr cooler delete 335d e92 -2007

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Discussion

mardanmarre

Original Poster:

7 posts

84 months

Sunday 21st May 2017
quotequote all
Hey!

Im new to this website and this is my first post. Before I ask my question I just want to thank all of you guys. Without these forums there would be a lot harder to find information on problems on these cars. So thank you all for posting and sharing your experiences.

My question:

My EGR cooler is probably leaking. Im sometimes getting this cloud of white smoke when I drive. It will smoke like sh** and after a couple of minutes it is gone. It doesnt smoke so much now but there is this white liquid on the edge of the tailpipes and it feels a bit like oil but smells like burnt coolant. Some of you will probably say that it might be the head gasket. Well, I dont have any white residue on the oil cap. And the oil level is at half and barely moves when I check the dipstick from time to time.

A friend of mine who is a mechanic at bmw says that he is pretty sure that it is the egr cooler failing.

Anyway, when removing the cooler and the egr valve. Should I remove the whole assembly including what looks to be a thermostat? (Where my finger is laying on in the pic).

Also, should I just plug this line that goes to the egr valve? (Seen in pic 2)

Is it something I need to be aware of when doing this delete?

Should I just connect the coolant hoses to each other after removing the cooler?

Pic 1: https://drive.google.com/open?id=0B58wN9piB_sGRW84...
Pic 2: https://drive.google.com/open?id=0B58wN9piB_sGYzRS...
Pic 3 (another pic of the egr thermostat): https://drive.google.com/open?id=0B58wN9piB_sGS0J3...

mardanmarre

Original Poster:

7 posts

84 months

Sunday 21st May 2017
quotequote all
Thx for your reply,

I was thinking of that, but wouldnt the exhaust gas temerature get too hot? Hot gasses like that getting sucked into the manifold would cause the engine to overheat I guess?


mardanmarre

Original Poster:

7 posts

84 months

Monday 22nd May 2017
quotequote all
Helix402 - Okay, some people say its bad like you are saying, but is that with or without the DPF still fitted to the car? I will delete my dpf as well so maybe it would be fine to delete the egr too. Or what do you think?

mardanmarre

Original Poster:

7 posts

84 months

Monday 22nd May 2017
quotequote all
You have to remove the air box to be able to access the hole in the engine block. Then you just plug it. I just want to know if there are any known (prooven) problems with removing the egr if you dont have a DPF?

mardanmarre

Original Poster:

7 posts

84 months

Tuesday 23rd May 2017
quotequote all
Did they change the egr cooler on your 640d?
Seems like this part is prone to failure. I want to remove it completely instead of buying a new one every time it breaks.

Im running at 340hp with the dpf still fitted. Going for a dpf delete first then ill test to run without the egr for a while and see if it makes a difference.

Is there someone here who runs without EGR?

mardanmarre

Original Poster:

7 posts

84 months

Tuesday 23rd May 2017
quotequote all
Well, im removing the egr system. Should I reroute the cooling lines or just plugg them?

mardanmarre

Original Poster:

7 posts

84 months

Saturday 17th June 2017
quotequote all
Hello again everyone. Thanks for all the replies!
I removed my dpf and the whole egr assembly (egr cooler, valve, etc). Everything works fine and the car rund great! 370 hp and 700nm of torque!

Anyone who id thinking about removing egr and dpf i would say go for it if you need to.