10-16-2020, 07:15 AM | #1 |
First Lieutenant
86
Rep 388
Posts |
I have a 2015 428 with 44k miles on it. When I do a cold start after sitting for a couple days I notice a slight shake and I can feel it in the steering wheel. No check engine light. Any thoughts ? I also still have cpo warranty
|
10-16-2020, 07:31 AM | #2 |
Colonel
11585
Rep 2,709
Posts |
There are 2 schools of thought on this as far as I know.
1 - some shake is common for bmw's as they age, especially the 4 cyl (I personally hated that response) 2 - you may need to replace the spark plugs or check the air/fuel ratios. |
Appreciate
0
|
10-16-2020, 07:33 AM | #3 |
First Lieutenant
86
Rep 388
Posts |
Thanks for the info! Do you think it's worth taking it to the dealer I still have CPo
|
Appreciate
0
|
10-16-2020, 07:50 AM | #4 |
Brigadier General
2462
Rep 4,560
Posts
Drives: '23 X1 28i xDrive
Join Date: Jan 2015
Location: Philly
|
Yes--I had an issue where on cold start, the car seemed like it would stall as soon as I put it in gear. Car was fixed under warranty--but they had it for a couple of weeks since they needed to let the car sit 6-8 hours every time to replicate the issue. They ended up updating the software and installing a new battery under warranty.
|
Appreciate
0
|
10-16-2020, 09:08 AM | #5 | |
First Lieutenant
86
Rep 388
Posts |
Quote:
|
|
Appreciate
0
|
10-16-2020, 11:15 AM | #6 |
Captain
440
Rep 842
Posts |
Some people have had luck with running fuel cleaner and additives too. I am of the mindset that if the car doesn't throw a code thinks it's fine and it only happens on a cold start than it is probably just a momentary electrical reading that shouldn't be worried about. Our engines rely on a computer to determine literally everything and sometimes a sensor might give a wonky reading on a cold start. this would cause the engine to adjust timing and/or air and fuel mixtures which could cause a stumble. I would only start worrying if it was happening on every start or very frequently. My old s4 would give an occasional shudder or uneven idle. Never threw a code, never effected performance and no matter who I showed it to at multiple dealerships and tuning shops they all said the same thing.... "ain't no thang but a chicken wing... nothing to worry about"
44k is a little young for new coil packs although no harm in upgrading, its your money after all. I change plugs every 50k for piece of mind so that might be a good idea. Let us know what you do and if it fixes it!
__________________
2019 x5 50i - current
2016 340i THP stage 2 - gone but not forgotten. |
Appreciate
0
|
10-16-2020, 11:19 AM | #7 | |
First Lieutenant
86
Rep 388
Posts |
Quote:
|
|
Appreciate
1
floridaorange11584.50 |
10-16-2020, 01:47 PM | #8 | ||
Colonel
11585
Rep 2,709
Posts |
Quote:
Quote:
|
||
Appreciate
0
|
10-28-2020, 05:42 PM | #9 |
First Lieutenant
86
Rep 388
Posts |
Update got my car back from the dealer. They concluded that the shaking was inspec. They went ahead and did my spark plugs since I had a coupon. Also noticed on my dash cam that they opened my door into another car 🤦*♂️
|
Appreciate
0
|
Post Reply |
Bookmarks |
|
|