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BMW 3-Series (E90 E92) Forum > BMW E90/E92/E93 3-series General Forums > Regional Forums > UK > UK Technical Forum > Lets talk about Breathers...



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      09-19-2018, 01:04 PM   #1
dragerboy
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Lets talk about Breathers...

Whilst waiting for my car to go in next week for the DPF to be re-instated I thought I would do air filter and crankcase breather. I purchased one off Ebay that looks identical to the current one on the car(genuine BMW) however it came with a little cartridge. What does it do?

In the end I fitted exactly what was removed as couldn't see what this cartridge would achieve.
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      09-19-2018, 11:45 PM   #2
rasa bmw
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that is the filter,,did you remove a loo roll filter?or was yours vortex like the one you bought
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      09-20-2018, 04:15 AM   #3
dragerboy
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The genuine BMW one had nothing in it. Picture attached of what I didnt put in.

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      09-24-2018, 04:27 AM   #4
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Quote:
Originally Posted by dragerboy View Post
The genuine BMW one had nothing in it. Picture attached of what I didnt put in.

Attachment 1902625
I take it you have an m57 engine? The filters were removed by BMW.

I think the general consensus was this was to aid the swirl flap mechanics.
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      09-24-2018, 04:39 AM   #5
dragerboy
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Yes M57. That is interesting to know, I was told when I bought my car the swirl flaps had been removed although I've never checked.
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      09-24-2018, 05:30 AM   #6
rasa bmw
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im ahve been in contact with a ex bmw tech,,he now has his own place and he will be servicing my 335d gearbox/vac lines removal of swirls etc,,he has told me the vortex filter is just that now,,it has not got a loo roll or a cartridge,,but he says i should fit a loo roll breather as the swirls and dpf are getting sorted..he did say it was just a matter of precaution and peace of mind,,but for the cost ill get it done..
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      09-25-2018, 03:49 AM   #7
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Quote:
Originally Posted by dragerboy View Post
Yes M57. That is interesting to know, I was told when I bought my car the swirl flaps had been removed although I've never checked.
But your swirlflaps have been removed and blanked yes? I think only the m57 325d came with a manifold without flaps.
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