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      01-15-2022, 11:16 AM   #1
thielepr
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M sport springs part number

I just bought a 230i that came with M sport track handling package but it came with Dinan springs. Does anyone knows the part number for the M stock coil springs?

What other BMW model are they interchangeable?

Last edited by thielepr; 01-16-2022 at 07:30 PM..
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      01-16-2022, 07:31 PM   #2
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Anyone?
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      01-16-2022, 11:24 PM   #3
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The spring part number has to be obtained from the BMW Spring Table, which is within the BMW ETK. The springs for your car are dependent on the weight of the specific equipment installed. The best way to find out what your car had originally is to give your VIN to a dealer and have them look up your specific spring configuration from the ETK.
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      01-17-2022, 11:01 AM   #4
thielepr
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Quote:
Originally Posted by aerobod View Post
The spring part number has to be obtained from the BMW Spring Table, which is within the BMW ETK. The springs for your car are dependent on the weight of the specific equipment installed. The best way to find out what your car had originally is to give your VIN to a dealer and have them look up your specific spring configuration from the ETK.
I did that and they gave me a specific part numbers. When I put them in the web they shows are BMW springs for let say 430i M sport but not compatible with 230i RWD M sport just an example.
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      01-17-2022, 01:23 PM   #5
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Quote:
Originally Posted by thielepr View Post
I did that and they gave me a specific part numbers. When I put them in the web they shows are BMW springs for let say 430i M sport but not compatible with 230i RWD M sport just an example.
For exact springs to fit your car i would take the BMW specified part numbers if you want to return it to original, the aftermarket suppliers don't have the info to match the correct springs to your car, it is only available from the BMW ETK.

They could be the same springs for a lightly optioned 430i vs a heavily optioned 230i, they match the springs to the weight of the car on each axle.
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      01-17-2022, 01:51 PM   #6
thielepr
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With my VIN I got the parts numbers below at two different dealers
Fronts 31336851922
Rear 33536851931

And
Fronts 31-33-6-851-920
Rears 33-53-6-851-927
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      01-17-2022, 02:27 PM   #7
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Quote:
Originally Posted by thielepr View Post
With my VIN I got the parts numbers below at two different dealers
Fronts 31336851922
Rear 33536851931

And
Fronts 31-33-6-851-920
Rears 33-53-6-851-927
It is a multi-step process for them to read out the springs part numbers, so possible operator error as opposed to differences between the ETK used at each dealer. You could phone a couple more dealers, give them the VIN and see if you get any more consistent part numbers.
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      01-17-2022, 05:21 PM   #8
thielepr
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I called a few more dealers and it seems the ones below are winning
Fronts 31-33-6-851-920
Rears 33-53-6-851-927
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