F10 M5 2016 - Suspension / Steering Noise?

[adh325]

Hi, in my 4th month of ownership 2,000 miles - loving it so far. More so now it's fully run-in!

Wanted to get people's thoughts and feedback on a couple things I've noticed. I'm not sure if it's a fault, or a characteristic of the car.

At lower speeds, over varied sized bumps (most noticeable over small bumps because road noise transfer is lower) I can hear a very dull knocking noise. The only way I can describe it is a hard plastic sports bottle moving about in a hard plastic tray. I'm finding it difficult to pin-point it, but at a guess it sounds like it might be coming from the drivers side somewhere. Having read forums it sounds very like the problems experienced with suspension in earlier models before the facelift. Are there any documented cases of the same problem with the latest model?

My other issue is to do with the steering. We have a few cobbles in Edinburgh so it's easy to replicate. Over sharp slow speed bumps there's sometimes an audible rattle / knock from the steering column. Seems more obvious when the steering is off centre. Not sure if it's related to the other issue.

I've had it looked at by BMW, first time at the run-in service, then again specifically to look for a problem - but apparently no fault was found.

Any feedback much appreciated.

Andy

[13M5F10]

Originally Posted by adh325

Hi, in my 4th month of ownership 2,000 miles - loving it so far. More so now it's fully run-in!

Wanted to get people's thoughts and feedback on a couple things I've noticed. I'm not sure if it's a fault, or a characteristic of the car.

At lower speeds, over varied sized bumps (most noticeable over small bumps because road noise transfer is lower) I can hear a very dull knocking noise. The only way I can describe it is a hard plastic sports bottle moving about in a hard plastic tray. I'm finding it difficult to pin-point it, but at a guess it sounds like it might be coming from the drivers side somewhere. Having read forums it sounds very like the problems experienced with suspension in earlier models before the facelift. Are there any documented cases of the same problem with the latest model?

My other issue is to do with the steering. We have a few cobbles in Edinburgh so it's easy to replicate. Over sharp slow speed bumps there's sometimes an audible rattle / knock from the steering column. Seems more obvious when the steering is off centre. Not sure if it's related to the other issue.

I've had it looked at by BMW, first time at the run-in service, then again specifically to look for a problem - but apparently no fault was found.

Any feedback much appreciated.

Andy

For the 1st issue, there is a TSB (SI B33 01 13) for it but I believe it was only for 2013 however, sounds like the same issue.

SUBJECT
Rattle from Rear Suspension over Rough Road Surfaces
MODEL
F10 M5
With the S63T engine
Produced to 3/2013

SITUATION
A rattling noise is heard from the rear suspension over rough or uneven road surfaces. This noise may be more
prevalent when the Electronic Damper Control (EDC) setting is set to “Comfort” mode.

CAUSE
Rear coil springs may create an unfavorable contact noise during suspension travel, due to the progressive
characteristics of the M5 suspension.

CORRECTION
After verifying customer’s complaint, replace the rear coil springs (refer to the Spring Table in EPC) and both
front and rear auxiliary dampers for the shock absorbers (bump stops).
PARTS INFORMATION
Parts required for rear dampers and springs:
Parts required for front dampers:

WARRANTY INFORMATION
Covered under the terms of the BMW New Vehicle/SAV Limited Warranty.
SI B33 01 13
Rear Axle
July 2013
Technical Service
Part Number Description Quantity
Refer to EPC Spring
Table
Coil spring - rear 2
33 53 6 855 993 Auxiliary damper - rear 2
07 11 9 905 374 Self-locking collar nut M8-10 ZNS3 6
32 21 6 769 539 Self-locking hex nut M12x1.5-05 ZNS3 2
33 50 6 779 488 Hex bolt M14x105 ZNS3 2
31 33 6 776 144 Auxiliary damper - front 2
07 12 9 904 876 Hex nut M6-8-ZNS3 2
31 10 6 789 333 Torx screw M10x59-10.9 ZNS 2
31 10 6 765 451 Combination nut M10-22H ZNS3 2
33 30 6 760 585 Combination nut M10-10 ZNS3 4
37 10 6 789 678 Hex nut with flange M12x1.5-10-ZNS3 4
33 30 6 760 349 Self-locking collar nut M14x1.5-10 ZNS3 2
07 11 9 906 495 Hexagon screw with flange M14x90-10.9 2
34 33 9 806 226 Nut, self-locking M14x1.5-05 ZNS3 2

[Bigmuz7]

I'm in Glasgow and have a 2013 F10 that Ive had back at the dealers with no fault found also for suspension noise. Ive only got about 18000 miles on it to date and I have to say I dont notice it as much now .. whether Ive just zoned out, or its gone I'm not sure ?, it was only noticeable at slow speeds on very un even surfaces for me

Edit .. mine was built in August 2013 so I assume it was modded ?

[13M5F10]

Originally Posted by Bigmuz7

I'm in Glasgow and have a 2013 F10 that Ive had back at the dealers with no fault found also for suspension noise. Ive only got about 18000 miles on it to date and I have to say I dont notice it as much now .. whether Ive just zoned out, or its gone I'm not sure ?, it was only noticeable at slow speeds on very un even surfaces for me

Edit .. mine was built in August 2013 so I assume it was modded ?

Mine sounded like loose tools in the trunk moving around. Everytime I went over uneven surfaces it was there. They did the TSB for me and issue was gone.

When you have issues that have a TSB, its always a good idea to walk in with it printed out otherwise they just do guess work and don't bother looking. Just my experience.

[adh325]

I know the M cars are arguably more susceptible to odd noises due to the set-up and tolerances etc - but presumably its reasonable to expect in a brand new M5 there shouldn't really be any audible knocks or rattles? On any surface (within reason)?

I'm just trying to determine if I'm being unreasonable in taking the car back again - so far I'm being told there's nothing unusual or faulty. I agree its best to do some research before taking a car to be diagnosed.

I'd be interested to hear of anyone else with the same problem in a post 2013 model when the dampers & springs were supposed to be revised. I tried the suspension in sport plus mode this morning and the noise didn't seem as obvious on smaller bumps. Difficult to tell over larger ones since you always get a thud from the tyre anyway. Still get the noise from the steering area over what I would describe as small slow speed 'sharp' bumps though.

Are the TSB's available online?

[Bigmuz7]

Originally Posted by adh325

I know the M cars are arguably more susceptible to odd noises due to the set-up and tolerances etc - but presumably its reasonable to expect in a brand new M5 there shouldn't really be any audible knocks or rattles? On any surface (within reason)?

I'm just trying to determine if I'm being unreasonable in taking the car back again - so far I'm being told there's nothing unusual or faulty. I agree its best to do some research before taking a car to be diagnosed.

I'd be interested to hear of anyone else with the same problem in a post 2013 model when the dampers & springs were supposed to be revised. I tried the suspension in sport plus mode this morning and the noise didn't seem as obvious on smaller bumps. Difficult to tell over larger ones since you always get a thud from the tyre anyway. Still get the noise from the steering area over what I would describe as small slow speed 'sharp' bumps though.

Are the TSB's available online?

I'm guessing you're just a bit sensitive to it as I was ? .. I made the point to the dealer, I also drive a relatively new Isuzu pick up , that is quieter ! But .. because of the way the chassis and suspension is connected in so many places, I just suppose a bit of that noise is normal, although I agree it was more than I expected it to be , too.

[13M5F10]

Originally Posted by adh325

I know the M cars are arguably more susceptible to odd noises due to the set-up and tolerances etc - but presumably its reasonable to expect in a brand new M5 there shouldn't really be any audible knocks or rattles? On any surface (within reason)?

I'm just trying to determine if I'm being unreasonable in taking the car back again - so far I'm being told there's nothing unusual or faulty. I agree its best to do some research before taking a car to be diagnosed.

I'd be interested to hear of anyone else with the same problem in a post 2013 model when the dampers & springs were supposed to be revised. I tried the suspension in sport plus mode this morning and the noise didn't seem as obvious on smaller bumps. Difficult to tell over larger ones since you always get a thud from the tyre anyway. Still get the noise from the steering area over what I would describe as small slow speed 'sharp' bumps though.

Are the TSB's available online?

I posted the TSB in my reply. Take that to the dealer. Sounds like you need to get it replaced as I did. My issue was gone.

Should not here any rattles or thumps out of a 100k car. Take it back

[M5Beast_NYC]

Originally Posted by 13M5F10

Mine sounded like loose tools in the trunk moving around. Everytime I went over uneven surfaces it was there. They did the TSB for me and issue was gone.

When you have issues that have a TSB, its always a good idea to walk in with it printed out otherwise they just do guess work and don't bother looking. Just my experience.

I live in NY and I hear this pretty much consistenty as the roads are rarely nice over here. Mine sounds just like something is loose. more specifically at the rear deck lid. Strangly enough I just started hearing this when I swapped out my forged wheels to my OEM wheels. Initially i thought i didnt tighten the lug bolts enough but after verifying its definitely the suspension. Could it be the weight of the wheels affect the noise and the way the suspension expand/compress with different weight wheels?

[13M5F10]

Originally Posted by M5Beast_NYC

I live in NY and I hear this pretty much consistenty as the roads are rarely nice over here. Mine sounds just like something is loose. more specifically at the rear deck lid. Strangly enough I just started hearing this when I swapped out my forged wheels to my OEM wheels. Initially i thought i didnt tighten the lug bolts enough but after verifying its definitely the suspension. Could it be the weight of the wheels affect the noise and the way the suspension expand/compress with different weight wheels?

343M are fairly light as well.

Did you go with 21s? Because of the lower profile on 21 I did hear more road noise

Could also be tired of you went with a different brand. May ride noisy

[adh325]

Originally Posted by M5Beast_NYC

I live in NY and I hear this pretty much consistenty as the roads are rarely nice over here. Mine sounds just like something is loose. more specifically at the rear deck lid. Strangly enough I just started hearing this when I swapped out my forged wheels to my OEM wheels. Initially i thought i didnt tighten the lug bolts enough but after verifying its definitely the suspension. Could it be the weight of the wheels affect the noise and the way the suspension expand/compress with different weight wheels?

Do you have a 'post fix' vehicle, when the damper issue was supposed to be resolved?

Interesting no-one else seems to have noticed any issues with knocking through the steering. Making me think even more that I might have a faulty component somewhere.

[adh325]

Originally Posted by Bigmuz7

I'm guessing you're just a bit sensitive to it as I was ? .. I made the point to the dealer, I also drive a relatively new Isuzu pick up , that is quieter ! But .. because of the way the chassis and suspension is connected in so many places, I just suppose a bit of that noise is normal, although I agree it was more than I expected it to be , too.

I agree - the suspension is very 'connected', bushes are harder and I believe where the regular F10 has bushes connecting the rear drivetrain assembly to the body - the M5 doesn't.

[vmackie]

Hi, adh325, I know this is a good while ago but did you ever get a resolution to your suspension noises?

I have a 2014 car on 20k miles just started 'knocking' over uneven sufraces/ridges at slow speed.

Just looking for any advice before a visit to the dealer!

[M5Rick]

The culprit may be those rear suspension aux s/a bushes mine make the odd quiet noise at times over road irregularities and disappear when switched to sport mode.Dealer says all is fine but the pro '13 bushes are not expensive and not difficult to replace.