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norway2 11-06-2019 02:11 PM

exhaust smell in the car
 
Hi
I have a X5 e53 2004 mod, when I stand still with the engine running then I am bothered with exhaust smell in the car, can not find any leak in the exhaust system but have heard others who are bothered with the same problem, this is a weakness on these cars or does anyone have any suggestions what it comes from?
grateful for all suggestions :-)

wpoll 11-06-2019 02:56 PM

Quote:

Originally Posted by norway2 (Post 1171150)
Hi
I have a X5 e53 2004 mod, when I stand still with the engine running then I am bothered with exhaust smell in the car, can not find any leak in the exhaust system but have heard others who are bothered with the same problem, this is a weakness on these cars or does anyone have any suggestions what it comes from?
grateful for all suggestions :-)

When my exhaust manifold was cracked, I had this same symptom. Have you still got the factory stainless exhaust manifold? If so, it's probably gone....

See this thread... (many images missing sorry).

https://xoutpost.com/bmw-sav-forums/...-pictures.html

I'll replace the missing images one day soon... :rolleyes:

Here's the manifold I used - good product...

https://x8r.co.uk/replacement-cast-i...diesel-engines

norway2 11-06-2019 03:28 PM

Thanks Wpoll :-) it may also explain why it goes a bit uneven at 2000-3000 rpm and turbo kicks in late

wpoll 11-06-2019 03:33 PM

Quote:

Originally Posted by norway2 (Post 1171156)
Thanks Wpoll :-) it may also explain why it goes a bit uneven at 2000-3000 rpm and turbo kicks in late

It may well....

There are at least three ways to replace the manifold: -

1. from above. Requires removal of the valve cover, which requires removal on the intake manifold and all the injectors. :confused:

2. from below. Requires removal of the reinforcing plate and exhaust system. :confused:

3. from the side. Requires removing less major items but you need the hands and dexterity of a gynaecologist... :confused:

I used #3, because I hadn't seen anyone do it this way before and felt sure it could be done. It can. ;)

Needed a few special tools etc. but it's all outlined in the thread I linked above. I'll try to get some time to replace the images later today... at least on the post showing the final work (post #39) ...

wpoll 11-06-2019 03:49 PM

Images now all replaced on post #39 - https://xoutpost.com/1142332-post39.html

norway2 11-07-2019 08:11 AM

Thanks for the very useful thread Wpoll, I think I'm going for # 3 and replaced it from the side


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