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Discussion Starter · #1 ·
Hello everyone!

Just bought my first BMW a few weeks back and just recently joined the forum.

I bought a second hand 2006 E90 320i with the M-Sport pack. It has 158k on the clock, automatic and is in good nick. I have two issues though and hoping to get a second opinion or if anyone has had the same problem before.

Issue 1
When idling or coming to a stop (almost still) the car will randomly stall. It has done it 3 times in 3 weeks.

Basically what happens is the revs get low (below 700) and the engine will cut out. I quickly chuck it into park and start the car again no problems.

The last time it happened I was turning at an intersection into heavy traffic. Once I stopped the car it jitters/vibrates a bit then cuts out. It almost did it again a few minutes after when I saw the revs drop instantly to 500 and it started jumping a bit but I gave it more revs and was ok.

Took it to the mechanic who did a software update and that didn’t fix it. I took it back again and he said he couldn’t find the problem and nothing came up in the diagnostics, no fault codes. He mentioned that the car might need reprogramming or a new valvetronic motor but wasn’t sure.

Has anyone experienced this stalling in an automatic?

Issue 2
How much oil does your 320i go through? I am thinking the sensor is malfunctioning because there isn’t an oil leak. The mechanic topped it up 1 litre as the dash said to add 1 because it was on minimum. The reading then said max which is good. As I was driving today after 30km I saw some clear/bluish smoke come out the back for a bit then I noticed my oil level has gone down a notch. Maybe excess oil was burning off??

Could the sensor be malfunctioning or would I have some sort of leak or is it normal for the 320i to be topped up after every 1,000km or so?

Issue 3
Is it normal to get slight vibrations when idling? I am not sure if it’s linked to my stalling but I do feel the car vibrates a bit when idling or coming to a stop.

Any help is appreciated!

Thanks,
Stefan.
 

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i had the same issue with the stalling with my 2006 320i M- Sport 4 Cyl.
couldnt work out what it was but i changed coils, battery and it was still doing it.
i have now changed alternator and the issue is fixed now.
i had issue with oil but my oil filter housing gasket and valve cover gasket needed replacing. there was an oil leak at both but for the valve cover it was at the back and a slow leak and now thats been done no issues.

hope this helps.
 

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Discussion Starter · #3 ·
i had the same issue with the stalling with my 2006 320i.

couldnt work out what it was but i changed coils, battery and it was still doing it.

i have now changed alternator and the issue is fixed now.

i had issue with oil but my oil filter housing gasket and valve cover gasket needed replacing. thats all done and no issues.

hope this helps.
Hello!

That helps thank you. Just need to get some opinions on other peoples experiences.

Oil seems to be ok now but keeping an eye on how much it goes through.

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easy enough if you are mechanically minded and remember how it goes back together but aslo check all the hoses and the plastics as i had 1 broken and the coolant leaked into the alternator. but there are some guides on bmw pelican parts site if you need a hand in what to do.
 

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Discussion Starter · #7 ·
easy enough if you are mechanically minded and remember how it goes back together but aslo check all the hoses and the plastics as i had 1 broken and the coolant leaked into the alternator. but there are some guides on bmw pelican parts site if you need a hand in what to do.
Cool thank you.

Let's see what other people say but good chance it is the alternator.

I want avoid BMW reprogramming the car!

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Discussion Starter · #11 ·
ok i just thought of something else we did.

we cleaned O2 sensors aswell.
Thanks for that.

Took it to an electrical specialist and he found that there was a problem with the Crankshaft Solenoid. Since it's been replaced it feels a lot smoother and vibrates less when idling.

The only problem is I stalled on a hill today and because I was in peak hour traffic I panicked and chucked it into PARK and coasted down the hill. There was a massive scraping/crunching noise from the front so I put it into DRIVE (lasted a few seconds). Since then though I feel a slight vibration in the footwell when I accelerate. When I accelerate hard I feel the engine sounds louder.

Not sure if I have damaged something and am very worried.

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is yours manual or auto?
and not sure what damage you may have done.
best option may be have Bmw have a look.
let me know how you go.
i will read up on some possible outcomes and get back to you.
 

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Discussion Starter · #13 ·
is yours manual or auto?

and not sure what damage you may have done.

best option may be have Bmw have a look.

let me know how you go.

i will read up on some possible outcomes and get back to you.
Automatic.

When I was reversing before and turned the wheel I could hear and feel a click. I think I have damaged something.

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ok so before the the sound started happening you put it in PARK and went down the hill then smacked it into drive?

if so you may have done something to the transmisson.
it could be anything just depends on where the noise is actually coming from.
are you able to record it?
 

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Discussion Starter · #15 ·
ok so before the the sound started happening you put it in PARK and went down the hill then smacked it into drive?

if so you may have done something to the transmisson or drivetrain
Yep that's right.

Yeah that's what I'm thinking. Just hard to tell until I take it to the mechanic. I got it booked in for tomorrow.

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Hi!

I'm affraid that you have damaged a parking brake mechanism integrated into the gearbox. When you've forced it into the 'park' while moving downhill, notches on the brake mechanism broke, or the whole mechanism fell apart. This is on the output shaft of the gearbox, and it causes imballance. This is the shaking and grinding you hear and feel.

https://auto.howstuffworks.com/auto-parts/brakes/brake-types/car-in-park1.htm
 
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