First Service Problems 340i
First Service Problems 340i
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Discussion

AndrewO

Original Poster:

690 posts

214 months

Friday 30th June 2017
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A warning to others if you have one of these....it looks like the oil filter is disintegrating in the housing. Whether this is all the 40i engines or the first ones I don't know.

Sorry, no picture of the filter but it was completely shredded. God knows if any of the bits went into the engine, I'll leave that to BMW to sort. Filter looks to be a paper variety with plastic top and bottom. Issue is worse as the housing is right at the back of the engine and the bottom plastic part is a bugger to get out. This has lead to the 2nd issue for me....the housing is also plastic and the dealer holed it trying to get the plastic out.

Doesn't look like a one-off, the Dealer said they had two 340s today, both filters had fallen apart. I think when I got the car these had just come out so maybe this is the start of an issue.

Mine is a 65plate on 18000miles and its first service.

Funny thing is I've been sent one of those videos on email....cars all done...we've checked this and that etc. When I saw it, it was on the ramp with all its oil on the floor.

helix402

7,913 posts

213 months

Friday 30th June 2017
quotequote all
The issue is the mileage before the service. 18k miles. Paper BMW filters will collapse if left for a long time between oil changes. They have been doing it since they were introduced in the 90s.
If you change the oil and filter every 10k miles the filter will not collapse. BMWs extended service intervals are not designed for the health of your engine. They are to sell more cars. My advice is based on working on BMWs since 1994, being a qualified BMW Technician and owning several. Current one on 240k miles, original engine. Oil and filter changed every 10k miles during my ownership.

SebringMan

1,774 posts

217 months

Saturday 1st July 2017
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What Helix said smile. I suspect the intervals are being pushed to the max so as to sell more cars.

Elliot2000

786 posts

207 months

Sunday 2nd July 2017
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Not to disagree with what's been said - shorter service intervals are much better for longevity of your engine - but bmw have had 18-22k miles servicing on their cars for well over a decade and they have always used paper oil filters. This seems to be an issue or design flaw on that particular engine or that filter.


iSore

4,011 posts

175 months

Sunday 2nd July 2017
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10'000 miles is as long as a paper filter should be in for. There are plenty of cases where these have broken up, blocked the oil way caused crank damage. Sometimes you can hear a strange whining sound from the filter housing as oil is struggling to circulate.
I change the oil on mine every 7000 - only 50 quid with a Mann filter.

E-bmw

13,632 posts

183 months

Sunday 2nd July 2017
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Just my opinion, regardless of service interval I would NEVER leave an engine filter in that long.

I have come across far too many cases of partial/complete filter collapse to even contemplate it, every one is a bullet dodged & some were close, but none have been mine.

AndrewO

Original Poster:

690 posts

214 months

Sunday 2nd July 2017
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I agree with the comments...mine is leased...BMW take it back in 12mths regardless

JNW1

9,518 posts

225 months

Monday 3rd July 2017
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Hmm, interesting thread!

My car (F31 335d) has just had its second service under the service pack at just under 40k miles; the first service was done at just over 20k miles so similar distances for each as advised by the service indicator. I obviously won't get another service under the service pack now (limit is 50k miles) and the car is out of warranty at the end of September. Not sure at this stage whether I'm going to keep it or not but if I do it sounds like an oil change every 10k miles wouldn't be the worst idea; may also extend the warranty as well depending on the monthly cost!

Fox-

13,575 posts

277 months

Monday 3rd July 2017
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helix402 said:
The issue is the mileage before the service. 18k miles. Paper BMW filters will collapse if left for a long time between oil changes. They have been doing it since they were introduced in the 90s.
This gets said time and time again but as you've correctly identified they've been doing extended intervals for over 20 years and it's fine. My E39 530i made it to 210,000 miles on extended servicing intervals.