[martin mustang]

I am shocked to learn that my F10 2011 lower wishbone arm need replacement under waranty of course, this was picked up after a routine service not even the 2nd service, apparently BMW is aware of a problem with the wishbones.

The roads here in the west of Irelands are not the greatest, but coming from London not a bigger deal different, i.e. the casual potholes and all, on top of that my winter tyres are normal, so my car is running on Run flat tyres for only 8 months out of 12, and 95% of the time I am on Comfort mode, and it's a 520d, hence not rocket like performance to put pressure on this part of the suspension.

It must be a defect with the new double wishbone front axle system introduced with the F10.

Any of you folks experienced the same?

[The X Men]

if the wish bone was damaged by potholes, BMW would not have cover it under warranty.

[martin mustang]

Originally Posted by The X Men

if the wish bone was damaged by potholes, BMW would not have cover it under warranty.

You spot on, in fact I am booked in next week for the replacement of both front wishbones arms.

[K-A]

Were you able to tell this happened right away? Or were you driving on it and had to figure it out by looking under the car or something?

[Avns1s]

Martin, I am interested to know the symptoms of your issue if any in normal driving.

I am too in the west of Ireland and have a problem with "clonking" in the right front suspension with an excessive rumble that BMW tell me is tyre noise. Funny though that its just from one corner.

Would also be interested in your experience with the dealer.

[ManiacGT]

What was the actual reason for replacement? Damage surely not but failure due to a design issue?

[martin mustang]

Originally Posted by K-A

Were you able to tell this happened right away? Or were you driving on it and had to figure it out by looking under the car or something?

Not at all, in fact the car is booked for next week, all looks normal, apart from the notes on the Vehicle Health check completed when the car was serviced, I did notice the big diference in confort when switching back to runflat summer tyres, maybe I blammed the runflat tyres all a long. in fact I made up my mine to go for normal summer tyres when my current one are due. I find the car far more confortable with the normal winter tyres.

[martin mustang]

Originally Posted by Avns1s

Martin, I am interested to know the symptoms of your issue if any in normal driving.

I am too in the west of Ireland and have a problem with "clonking" in the right front suspension with an excessive rumble that BMW tell me is tyre noise. Funny though that its just from one corner.

Would also be interested in your experience with the dealer.

Hi Avns1s, worth getting your dealer to run a health check the one performed with every service, on my one this is how they picked up on this in the section under Suspension, a warning triangle with reference to Lower wishbone arm, printed twice.
I let you know the outcome, and will findout what version of the F10 are subject to this deffect, my one is June 11 production.
Who is your dealer by the way?

[martin mustang]

Originally Posted by ManiacGT

What was the actual reason for replacement? Damage surely not but failure due to a design issue?

Will find out next week, was told the car is safe to drive, my service was last week, so apart from the note on the healthcheck form no sign of any issues with the suspension, I believe this is a some sort of know deffect.

[camnhoj]

Must keep an eye on this Martin . The roads down my way ain't exactly motor ways and im running 20 " wheels

[marcielago]

If you can get a service bulletin for this will be very helpful, if this was the case ofcourse

[martin mustang]

Originally Posted by camnhoj

Must keep an eye on this Martin . The roads down my way ain't exactly motor ways and im running 20 " wheels

Are you running on Run flat tyres? I am on standard 18 and my current set of run flat is for sure the last one, on my previous E60 with 19 inch the car was more comfortable.

[martin mustang]

Originally Posted by marcielago

If you can get a service bulletin for this will be very helpful, if this was the case ofcourse

will try, I need to know the details, for a 5 series to have the wishbones arm changed after one service, is simply not on.

[martin mustang]

Wishbone replaced, never felt any difference with the car suspension, according to the dealer, service check picks on any this very issues, when so they simply replace the lower wishbone arm under warranty, to me look like a known issue by BMW since it is replaced under warranty.
Very satisfied with the way my dealer handled this, to me I was the priority all along, apparently this issue is common hence a defect with the original part.
I am for sure switching my summer tyres for normal ones, the difference in comfort I experience with my winter normal tyres is right in my face, I am likely to go for Michelin, any advise folks for what is best for non run flat tyres on Irish roads?

[camnhoj]

Originally Posted by martin mustang

Are you running on Run flat tyres? I am on standard 18 and my current set of run flat is for sure the last one, on my previous E60 with 19 inch the car was more comfortable.

The car came with run flat dunlops when I bought it . The 2 front tyres got damaged within a month and a half of owning the car , they are now quite expensive flower pots in my garden
I replaced them with nrf tyres and couldnt believe the difference in comfort so much so I am considering replacing the rears for nft bofore they are even worn out !
My previous car was a e60 msport on 19" wheels non run flat tyres and I never had any issues with comfort, potholes, noise, punctures or wheel damage !

[martin mustang]

Originally Posted by camnhoj

The car came with run flat dunlops when I bought it . The 2 front tyres got damaged within a month and a half of owning the car , they are now quite expensive flower pots in my garden
I replaced them with nrf tyres and couldnt believe the difference in comfort so much so I am considering replacing the rears for nft bofore they are even worn out !
My previous car was a e60 msport on 19" wheels non run flat tyres and I never had any issues with comfort, potholes, noise, punctures or wheel damage !

Is the combination of front normal and back runflat advisable? will this not impact/speed up the wear and tear of the tyres ...., I was under the impression you cannot mix the 2.
I need to change my back tyres, hence pushing for another month, before I am back on my winter set, and a new set of normal summer tyres after this coming winter, i.e. change front and back.

[marcielago]

I cannot think of ay reason why mixing tires would cause any issue. My original set of RFT on standard M-sport 18" rims required replacing after 19K km. I am now still running on Michelin PSS non-RFT for 40K km's. Don't think will be going back to RFT.

[camnhoj]

Originally Posted by martin mustang

Is the combination of front normal and back runflat advisable? will this not impact/speed up the wear and tear of the tyres ...., I was under the impression you cannot mix the 2.
I need to change my back tyres, hence pushing for another month, before I am back on my winter set, and a new set of normal summer tyres after this coming winter, i.e. change front and back.

Don't worry Martin the way wifey drives ill be changing my back tyres very shortly

[BMWrules7]

Originally Posted by martin mustang

I am shocked to learn that my F10 2011 lower wishbone arm need replacement under waranty of course, this was picked up after a routine service not even the 2nd service, apparently BMW is aware of a problem with the wishbones.

The roads here in the west of Irelands are not the greatest, but coming from London not a bigger deal different, i.e. the casual potholes and all, on top of that my winter tyres are normal, so my car is running on Run flat tyres for only 8 months out of 12, and 95% of the time I am on Comfort mode, and it's a 520d, hence not rocket like performance to put pressure on this part of the suspension.

It must be a defect with the new double wishbone front axle system introduced with the F10.

Any of you folks experienced the same?

Go check out the technical docs someone recently posted. You will see that portions of the aluminum wishbone were changed to steel.

Presumably, the aluminum portions of the wishbone were failing. Steel was used to increase strength at the detriment to weight.

[K-A]

In what year were they changed to steel?