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M40i brakes - design flaw uncovered
Posted: Sat Jan 20, 2024 4:53 pm
by Jim S
I keep a scissor jack, wheel nut spanner and socket, plus a long screwdriver in the boot and remove the stone myself if and when it happens. Been a while now. Seems like when the tyres wear a bit and lose their “stickiness” the problem occurs less frequently.
M40i brakes - design flaw uncovered
Posted: Sat Feb 03, 2024 8:12 pm
by McHaggis69
For info
I had my car in at BMW for its MoT within the last two weeks and raised the matter with them.
"Its not something we've heard of and there are no recalls..."
I should have pointed them to this thread.
I've owned dozens of cars and this Z4 is the only one I've ever experienced stones getting trapped and its happened twice!
M40i brakes - design flaw uncovered
Posted: Sat Feb 03, 2024 8:19 pm
by ronk
McHaggis69 wrote: Sat Feb 03, 2024 8:12 pm
"Its not something we've heard of and there are no recalls..."
It sounds like they may have been previously employed by Thd Post Office !
M40i brakes - design flaw uncovered
Posted: Sat Feb 03, 2024 8:32 pm
by Jim S
McHaggis69 wrote: Sat Feb 03, 2024 8:12 pm
For info
I had my car in at BMW for its MoT within the last two weeks and raised the matter with them.
"Its not something we've heard of and there are no recalls..."
I should have pointed them to this thread.
I've owned dozens of cars and this Z4 is the only one I've ever experienced stones getting trapped and its happened twice!
They know very well about the problem. It happened to me 5 times in the first 1,270 miles of ownership in 2019. I even wrote directly to Mr Grieve, UK MD, and reported each occasion to my dealer who passed on photographs of the problem to their Technical Department in Germany HO.
Poor show from BMW.
M40i brakes - design flaw uncovered
Posted: Sun Feb 04, 2024 6:01 pm
by ori
Jim S wrote: Sat Feb 03, 2024 8:32 pm
McHaggis69 wrote: Sat Feb 03, 2024 8:12 pm
For info
I had my car in at BMW for its MoT within the last two weeks and raised the matter with them.
"Its not something we've heard of and there are no recalls..."
I should have pointed them to this thread.
I've owned dozens of cars and this Z4 is the only one I've ever experienced stones getting trapped and its happened twice!
They know very well about the problem. It happened to me 5 times in the first 1,270 miles of ownership in 2019. I even wrote directly to Mr Grieve, UK MD, and reported each occasion to my dealer who passed on photographs of the problem to their Technical Department in Germany HO.
Poor show from BMW.
How did you write to me grieve? Can you pm me the email address? I wish to do something similar.
M40i brakes - design flaw uncovered
Posted: Sun Feb 04, 2024 7:11 pm
by Jim S
ori wrote: Sun Feb 04, 2024 6:01 pm
Jim S wrote: Sat Feb 03, 2024 8:32 pm
McHaggis69 wrote: Sat Feb 03, 2024 8:12 pm
For info
I had my car in at BMW for its MoT within the last two weeks and raised the matter with them.
"Its not something we've heard of and there are no recalls..."
I should have pointed them to this thread.
I've owned dozens of cars and this Z4 is the only one I've ever experienced stones getting trapped and its happened twice!
They know very well about the problem. It happened to me 5 times in the first 1,270 miles of ownership in 2019. I even wrote directly to Mr Grieve, UK MD, and reported each occasion to my dealer who passed on photographs of the problem to their Technical Department in Germany HO.
Poor show from BMW.
How did you write to me grieve? Can you pm me the email address? I wish to do something similar.
I sent an email to:
[email protected]
M40i brakes - design flaw uncovered
Posted: Tue Feb 06, 2024 5:54 pm
by ori
[/quote]
I sent an email to:
[email protected]
[/quote]
Did you get a response? I’m drafting an email now.
M40i brakes - design flaw uncovered
Posted: Tue Feb 06, 2024 6:03 pm
by Jim S
ori wrote: Tue Feb 06, 2024 5:54 pm
I sent an email to:
[email protected]
[/quote]
Did you get a response? I’m drafting an email now.
[/quote]
Yes I did receive a response at the time from his assistant.
M40i brakes - design flaw uncovered
Posted: Wed Feb 07, 2024 6:34 pm
by ori
Thanks Jim, I have just emailed that address along with what I think is the new guys email address.
M40i brakes - design flaw uncovered
Posted: Wed Feb 07, 2024 6:45 pm
by Jim S
ori wrote: Wed Feb 07, 2024 6:34 pm
Thanks Jim, I have just emailed that address along with what I think is the new guys email address.
Good luck. Hopefully you will receive a positive response. Let us know how you get on.
M40i brakes - design flaw uncovered
Posted: Tue Apr 02, 2024 8:16 pm
by hairyfrogowl
Has any kind of fix been found for this? Considering a Z and I have a shingle drive way!!
M40i brakes - design flaw uncovered
Posted: Fri May 10, 2024 5:54 am
by MrErling
Hi.
Where can I find the date the post are postet here in the tread
M40i brakes - design flaw uncovered
Posted: Fri May 10, 2024 12:56 pm
by dr_john
hairyfrogowl wrote: Tue Apr 02, 2024 8:16 pm
Has any kind of fix been found for this? Considering a Z and I have a shingle drive way!!
I have shingle drive also, but not had this problem with the 2 G29's that I've owned.
Mind you, both of mine were/are 2.0 versions so maybe that has some bearing.
M40i brakes - design flaw uncovered
Posted: Tue May 28, 2024 9:39 pm
by Kesmo101
Had this issue twice and everybody in the street just stops and stares - you can tell theyre thinking 'that BMW is brand new and its broke already' lol. Soooooooo embarrassing - only fix I found is getting on the motorway sharpish and floor it until you hear it ping out
M40i brakes - design flaw uncovered
Posted: Thu May 30, 2024 3:50 pm
by hairyfrogowl
Well, I bought the M40i anyway and it is fantastic!
Not had the issue so far but if it comes it comes I guess
