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BMW 3-Series (E90 E92) Forum
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Cracked BMW Alloy Wheels --- Taking legal action
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01-22-2009, 03:12 PM | #133 |
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How are you guys finding out that there cracked? Loss of pressure?
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01-22-2009, 03:27 PM | #134 |
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good idea but add it to the existing thread, otherwise we are just going to have two threads visiting the same topic?
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01-22-2009, 03:30 PM | #135 | |
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All with cracked wheels need to start adding there names to a list - how many people have them??? |
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01-22-2009, 04:08 PM | #137 | |
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Lets start the watchdog process - I am happy to help coordinate. Any suggestions as to how we get it moving? |
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01-22-2009, 04:28 PM | #138 |
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but it does seem to effect 225 more than anyother wheel.
What i was trying to do is find out the percentage of faulty wheels and did not want to cloud the results with people who dont have 225 's posting for example most people with 17 or 18 are not having any problems. We hear about the people with problems but no one has said mine are fine, thus I am trying to gauge if we have 100 memberswhich have 225 wheels how many have had to replace wheel due to this problem. This is also why i tried to start a new post so it did not get lost in 7 other pages. Also when you have spent £30+ on a car and once a year you have to spend £500 on new rims I think it might be worth a duplicate thread
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01-22-2009, 04:50 PM | #139 |
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Absolutely agree its worth another thread and poll. However, I think it should look at the issue across the 19" alloys, as it is clearly affecting 225s and 230s. I would agree there are more 225s affected, however the problem with the 230s is there and just as valid (and expensive!) an issue.
As I say, happy to help coordinate anything. Somehow we need to get all the affected people's name together and open a Watchdog case |
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01-22-2009, 05:33 PM | #140 | |
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At least then there will be a clear indication of which members are affected..... Anyone gonna start? |
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01-22-2009, 05:34 PM | #141 |
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I have just read this and thought it was interesting if true. If this is the case then surely run flat tyres are not fit for purpose as they damage the car pernamently and it's a dangerous long term solution to a puncture.
http://www.topix.com/forum/autos/bmw...79AR1LNTAM9LMI "Hi, despite what many are saying regarding BMW alloys cracking due to pot hole etc it is actually a result of the tyre being driven on flat as soon as there has no air the tyre will rapidly heat up, a conventional tyre would break up and allow this heat to disperse however the runflat tyres dont and as a result the alloy wheels are heated to a point in whick they crack this is a very common problem throughout the bmw range . the tyres must be regulary check for pressure the tyre monitoring rpa system can only detect a sudden lose of air and as tyres loose air over time without having punctures its not easy to see if a runflat tyre is low on pressure "
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01-23-2009, 01:48 AM | #142 | |
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There is lots of bollox on the internet, obviuously, but that's the best I've ever read. The lack of air in the tyre causes it to heat up a 19kg lump of magnesium alloy to the point where it fractures?
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01-23-2009, 07:20 AM | #143 |
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Here's confirmation of cracked wheels I had last year.
Car: E93 335i M Sport Build date: Feb-07 Registered date: Mar-07 No of wheels cracked: 2 rears - Jun-08 @ 9000miles Resolution: £600 paid by my insurance / £420 paid by my BMW dealer (after 2 months of complaining) Last edited by mda335i; 01-23-2009 at 07:21 AM.. Reason: incorrect month advised |
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01-23-2009, 08:27 AM | #144 | |
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Indeed. That's a load of bollox. Heat has nothing to do with this, although the runflats do makes things worse in that if you hit small pothole (one that wouldn't normally do damage) with a normal tyre, the sidewall will flex and the air cushions the blow. Any impact force with normal tyres is transferred accross the full width of the wheel via the airpressure. With a runflat, the sidewall doesn't flex and some of the impact force is transferred straight up through the sidewall and directly onto the rim, with the blow leading to cracks. Here's my take on why the rears are more susceptible to the cracking. 1. The 19" alloys (both 225 and 230) are 8" wide for the fronts, 9" wide for the rears. The outer rim (on any wheel) has the benefit of the spokes to keep it stiff and rigid. The further away the inner rim is from the supporting spokes, the easier it is to flex and deform it. Think of a can that has been cut through the middle. If you try to squeeze the base of the can it will hold its shape. Squeeze the cut edge away from the base and not a lot of force is required to bend it. The wider the wheel, the easier it is to bend the inner rim. 2. The rears on the BMWs run negative camber. AFAIK the fronts run zero camber (or certainly much less than the rears). The negative camber places more of the load on the (mechanically weak) inner rim. Be it brittleness or manufacturing defect, everything else being equal, the mechanics are that it takes far less impact to damage the inner rims on the rears than on the fronts. |
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01-23-2009, 08:30 AM | #145 |
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^ agreed.
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01-23-2009, 11:58 AM | #146 | |
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01-23-2009, 02:34 PM | #147 | |
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Separating multiple strands concerning the same issue is also a problem, especially when new users post their problems in the wrong one, or worse still, start a new one about the very same topic. Searching through multiple threads, in order to find information about any specific topic is also a problem for everyone. For those reasons alone, I'd prefer the information to remain in a single thread, ok. Also, statistically-speaking, any quantitative data collated in a forum is not of any 'real world' use- sample size is relatively small & the data just cannot be extrapolated properly to relate to the entire E9x-owning population. Viv |
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01-23-2009, 06:40 PM | #148 |
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Even worse, people tend to join forums like these after they start having problems which means that the numbers having problems are skewed and not representative of the general BMW owning population.
What would be very effective is the number of people who have experienced the problem after joining the forum therefore the problem was not the cause of joining the forum and would be representative. If for example, 3 out of 20 pre-existing owners with the same wheels developed the same problem, this would suggest some sort of issue. My twuppence worth. |
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01-25-2009, 01:47 PM | #149 |
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Was disappointed by the response from BMW legal in the earlier post. Not sure of all the facts re the consumer protection act, but seems to be quite a bit of smoke and mirrors there.
The extent to which this is happening at a time when: "BMW's boss Norbert Reithofer yesterday described the situation to Germany's Spiegel magazine as "the worst crisis BMW has faced in its history"." May or may not be coincidental... BMW have done the run out test on my girlfriends car and delivered the same message - that they are not interested in doing anything. To me, the run out test seems a bit pointless - sure, it tells you that the rear wheels may not be true (approx 2mms), but does not establish why this happened - whether due to abnormal driving and potholes or whether the construction of the wheel is substandard. We've submitted the case to the SMMT and will see what they have to say. If anyone is coordinating the taking of details to move this forward with a programme like watchdog, very happy to provide info. This all leaves a pretty bad taste in the mouth. We've paid a lot of money for a car to find out it has substandard quality wheels - both I and she have had different cars from BMW, Porsche and Audi that have been subject to very similar driving patterns and none have had this problem. If we fork out cash to put new wheels on the car ourselves, we have no way of knowing if we are going to be in the same position in 12 months time or less. Do we switch to 18's which seem to avoid the problem - but requires the purchase of 4x new wheels and tyres (rather than 2 wheels) and presumably a reduction in the value of the car? My girlfriend is pregnant and unsuprisingly, she does not want to drive round in a car with damaged wheels or wondering if the new wheels have gone... |
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01-25-2009, 02:58 PM | #150 |
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pjs,
You are going to lose this case mate. Sorry but you will. BMW will put on their highly experienced experts. Magistrate will rule in their favour. You need an expert, and you also need data. A good comparision would be to get 25 E46 Sport owners to tell of their lack of cracked alloys, or talk to independant BMW garages, and get 25 current E9X owners to note that they have had cracked alloys. Then get an expert to confirm this issue. Neil. |
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01-25-2009, 03:04 PM | #151 |
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but also may be worth to raise a claim against your dealer.
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01-25-2009, 03:15 PM | #152 |
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oh and I have an E61 sport. I lost the tyre of my wheel when the runflat went flat but the system didn't warm me. Lost it at 60MPH. Replaced the tyre but it continually went down, got a new wheel of ebay.
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01-28-2009, 02:17 PM | #153 |
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i am still with you on this PJS, and I still have my 2 cracked rear wheels to supply if you need them, along with my 4 tyres - the 2 rears shredded with less than 7k on them due to camber being so badly out!
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01-28-2009, 04:00 PM | #154 | |
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