E90 325i - Engine Vibration during Idling

[xumba]

I guess the issue is caused by manufacture inconsistency. Some car are lucky enough to get everything right. But not so for many others. There is post in E90Post mentioned that the issue is triggered by a very small misfiring that is so small that there is no fault code register, i.e. computer still believe it is normal and it does not know exactly which cylinder is having misfiring. So, i guess we have to live it for now.

However, for a real fix, each one of us have to contact dealer and complain it to BMW to get their attention. There has to be enough complain accumulated to get BMW take actions. So far, they just sitting on their ass smile at us.

 

[xumba]

I tried another 2006 325i today. It does not have the vibration problem. However its RPM is a little higher than mine (before bumped up). So it may be just good or maybe it was bumped before. Anyway, just so you know. I am not sure what point I am trying to make here.

 

[astroboy]

It happen to my 2006 325i also and it only happens when the engine cools down a little. When its really hot it doesn't vibrate. I thought it was normal when my Mechanic tested the car after changing my absorbers. He said might have to change the spark plugs. So since plugs have something to do with engine, better send to Ingress.

At Ingress they said plugs not due yet and its cost 1k to change all 6. Why waste money when they are not due. Confuse.... i had to take action in my own hands and went to Bavarian Auto to ask about the plugs. Cost RM28 each for Bosch Platinum, so bought all of them and went to Mechanic to change the plugs, Cost RM35 for labour. He even resetted the OBC reading for plugs.

When he removed the plugs, i got a shock as they were all burn at the head and also around the white area. Now my ride doesn't vibrate anymore and it is lighter on the pedal.

Maybe you can try this as its only a small investment for R&D. The KM reading on my OBC is 72k.

Our last check with SC has confirmed that we (E90 320i) are running on NGK Iridium as our OEM. For those who understand spark plugs, you will know what are the difference between copper, platinum, and iridium. The manufacturer recommended replacement interval for iridiums are 125k km. Our E90 however, conservatively set it to 100k km in the OBC.

So our plugs technically can last 100k km, safely. However, other conditions may have caused premature wear and tear of the iridiums. Like for BMWs ' case, only 75k km.. what have caused it to become heavy carbonised? Burning too rich? engine oil seeped in? Why? Clogged air filter? Why wouldn't the O2 sensor pick up the rich burning and compensate accordingly?

Platinum plugs recommended replacement intervals are 20k km. Was this set in your OBC, BMWs?!

 

[BlackE90]

AB, once reset is activated, the OBC countdown reading will begin from 100k, you can't select the mileage.

 

[totoro]

such a new car, how come got such problem, my car e46 been 9 yrs, never had such problem ? hmmm

 

[astroboy]

such a new car, how come got such problem, my car e46 been 9 yrs, never had such problem ? hmmm

Unlucky loo.. but if problem start after warranty, more unlucky..

 

[BMWs]

Our last check with SC has confirmed that we (E90 320i) are running on NGK Iridium as our OEM. For those who understand spark plugs, you will know what are the difference between copper, platinum, and iridium. The manufacturer recommended replacement interval for iridiums are 125k km. Our E90 however, conservatively set it to 100k km in the OBC.

So our plugs technically can last 100k km, safely. However, other conditions may have caused premature wear and tear of the iridiums. Like for BMWs ' case, only 75k km.. what have caused it to become heavy carbonised? Burning too rich? engine oil seeped in? Why? Clogged air filter? Why wouldn't the O2 sensor pick up the rich burning and compensate accordingly?

Platinum plugs recommended replacement intervals are 20k km. Was this set in your OBC, BMWs?!

AB, According to Ingress. They recon that the plugs can last up to 100k km and confirm that they use Bosch Platinum as replacement. Even ori that came with the car is Bosch Platinum with BMW logo printed. After changing plugs, reset OBC and count down was 100k. I tried to get Iridium plugs for my model from Bavarian Auto and they don't have.

 

[BMWs]

Our last check with SC has confirmed that we (E90 320i) are running on NGK Iridium as our OEM. For those who understand spark plugs, you will know what are the difference between copper, platinum, and iridium. The manufacturer recommended replacement interval for iridiums are 125k km. Our E90 however, conservatively set it to 100k km in the OBC.

So our plugs technically can last 100k km, safely. However, other conditions may have caused premature wear and tear of the iridiums. Like for BMWs ' case, only 75k km.. what have caused it to become heavy carbonised? Burning too rich? engine oil seeped in? Why? Clogged air filter? Why wouldn't the O2 sensor pick up the rich burning and compensate accordingly?

Platinum plugs recommended replacement intervals are 20k km. Was this set in your OBC, BMWs?!

AB, According to Ingress. They recon that the plugs can last up to 100k km and confirm that they use Bosch Platinum as replacement. Even ori that came with the car is Bosch Platinum with BMW logo printed. After changing plugs, reset OBC and count down was 100k. I tried to get Iridium plugs for my model from Bavarian Auto but they don't have.

 

[xumba]

hmm, should i sell it? what is consequence if i keep it for long? is this really a big problem?

 

[Vroom325]

Hi AB, many manufacturers come out with Iridium plugs, do you think our beemer can use any of them, or it has to be stricly workshop recommend stuff?

Mine is a 2004 e46 325, I can get Denso Iridium plug at staff price through my friend...
But then I think I need to check if Denso does manufacture such plug for my model, isn't it?

 

[paulpaul2]

the problem now its plugs or petrol? my car had the same problem now and send to AB check its nothing , was told by SA try to pump in V-power and i try in first tank and the car no more vibra,but after second tank of V-power the problem come again ...omg , i remember i pump in 2 times b4 ron 95 petrol,its will be the reason ?

 

[astroboy]

I only trust NGK.. No Bosch, no Denso for me. Not even Volker. I have seen research that favors NGK and have total peace of mind with them.

Workshop recommended stuff? I don't even trust their Syntium LL.. I returned for BSRI oil change just because its free (I cheapskate mah ) and do not want to void my warranty.

 

[paulpaul2]

i cant view page 8 ??

 

[JCKL]

Re-cap : my 325i developed problem of engine vibration during idling after switching from V-Power to RON 97. Car sent to IA, they checked for 1 1/2 days but couldn't identify the cause (I was told), took the car back as needed to use the car and I was assured that it wasn't a life threatening problem. I was told to send the car back to them for may be 3-4 days for them to do a thorough check. Mean while I re-pump V Power & vibration became less pronounced but still noticeable. I checked the e90post forum & realised that it's not an uncommon problem and may not be fixed easily. I dreaded at the fact that I may have to live with this irritating problem for as long as I keep the car!

The car then developed door lock problem, so I decided to send it to my friendly independent BMW specialist as it's a minor fuse problem. while the car was there, tried my luck & asked them to check the vibration problem. Plugged in the diagnostic machine, showed error : 1 cylinder miss-firing. Mechanic checked the plug & advised that they're not in good working condition. Had them changed, instead of re-sending it to IA although it's probably covered under BRSI.

The car is now running smoothly for couple of weeks now. So, my questions are : why doesn't IA not able to identify the problem when an independent specialist can easily do so? Was it because IA rely too much on the service schedule as the plugs were not due to be changed under BSRI? Am I going back to IA as my BSRI isexpiring by end of this month?

 

[BlackE90]

Glad to hear that you have resolved your jerking issue. Great & precise job by your reliable independent specialist on rectification of a malfunctioned plug. This valuable experience will be in our private Owner's Manual.

Bro, since your independent specialist can solve problems or issues, and charging a lower labour charge, why you need to be back to Authorised Service Centres after your expiry of BSRI? This is just my opinion....BTW, can PM me the independent specialist's address & contact number?

 

[JV88]

Bro bmFIVE, pls PM me also your independent specialist address & contact. I'm tired of the authorised service centre issues already. Thanks.

 

[BlackE90]

Bro bmFIVE, pls PM me also your independent specialist address & contact. I'm tired of the authorised service centre issues already. Thanks.

Bro, if you still have BSRI & warranty, then its better for you to send your ride to the SC....All replacement parts are FOC and would not void the warranty provided.

The independent specialist are meant for those without BSRI or warranties.

 

[Spaceman]

Bro, if you still have BSRI & warranty, then its better for you to send your ride to the SC....All replacement parts are FOC and would not void the warranty provided.

The independent specialist are meant for those without BSRI or warranties.

my "BSRI" translated only to...1 free oil change, 1 filter, 1 microfilter, 1 time brake flush...and that's it. wanted to ask rotor + pad to be changed b4 expiry but was told by SC they are still working fine...@#$%^%()!

 

[BlackE90]

my "BSRI" translated only to...1 free oil change, 1 filter, 1 microfilter, 1 time brake flush...and that's it. wanted to ask rotor + pad to be changed b4 expiry but was told by SC they are still working fine...@#$%^%()!

Under the BSRI, I had 3 oil + filters changed, 1 brake fluid flush, 1 set of brake pads (front & rear), thats all. No microfilter, rotors nor wipers changed.....I heard someone had all the necessary items changed just before the BSRI expires. I wonder why all SC have double or triple standards....?

Now warranty & BSRI expired liao...gotta go to reliable independent specialists.....

 

[David Yong]

I have the following under BSRI (fully warranty without any cost to me):

1) 4 times of engine oil service and filter
2) 1 unit of engine oil sensor
3) Many times of 1 liter oil top up
4) 1 unit of new engine
5) 1 unit of front RH & LH headlamps
6) 1 set of front & rear brake pads & disc
7) 1 microfilter
8) 1 time brake flush
9) 1 set of wipers
10) 1 unit of aircond compressor (at 67k km mileage)
11) 1 unit of starter (at 74k km mileage)
12) 1 unit of exhaust valve vanos adjustment (at 76k km mileage)