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E63 / E64 6 Series (2004 - 2010)
The E63/E64 BMW 6 Series builds on BMW's sporty heritage with aggressive lines and an incredible motor to back the design up. Available in coupe and convertible trims with a standard 4.8 liter engine producing 360 horsepower and 360 lb-ft of torque, the 6-series is a popular choice that exceeds expectations.

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  #1  
Old 01-03-2015, 02:13 PM
Cazemering Cazemering is offline
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Unhappy 08 650i c crack in front fender

I just noticed a crack in the passenger side front fender. It starts at the rivot under the hood. Has anyone seen this before? No accident or any other damage...can this be a stress fracture? It has been cold lately/freezing (upstate NY)...but would be surprised the cold could crack the fender. Has anyone seen this before?
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  #2  
Old 01-04-2015, 12:23 PM
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645/333 645/333 is offline
Michael
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Quote:
Originally Posted by Cazemering View Post
I just noticed a crack in the passenger side front fender. It starts at the rivot under the hood. Has anyone seen this before? No accident or any other damage...can this be a stress fracture? It has been cold lately/freezing (upstate NY)...but would be surprised the cold could crack the fender. Has anyone seen this before?
Do you mean the plastic fender? as it is not riveted on, there are bolted on, but if the bolts are to tight (yes they have a bolt tolerance to work to!) then it is possible for the plastic/metal to flex and possibly split??
I think this is quite rare.........
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  #3  
Old 01-05-2015, 03:53 AM
Cazemering Cazemering is offline
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08 650i c crack in front fender

Thanks 645/333 for the reply.

I checked and You are correct...there are no rivets, the plastic fender is bolted on. The crack starts right under the bolt. I am taking it to the dealer this week to get their opinion.

Thanks!
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Old 01-05-2015, 03:56 AM
Cazemering Cazemering is offline
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08 650i c cracked front fender

Quote:
Originally Posted by 645/333 View Post
Do you mean the plastic fender? as it is not riveted on, there are bolted on, but if the bolts are to tight (yes they have a bolt tolerance to work to!) then it is possible for the plastic/metal to flex and possibly split??
I think this is quite rare.........
You are correct...the fender is bolted on. Crack starts right under the bolt.

Thanks for the reply. Taking it to the dealer this week to get their opinion.
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  #5  
Old 01-05-2015, 04:48 AM
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645/333 645/333 is offline
Michael
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Those bolts have a tension spec to allow the fender to flex, under each one of those bolts is a rubber grommet. You can release the bolt slightly to take any undue pressure off. It may well be that the fender has been "bumped" but no scratch or dents showing, but enough to crack the plastic.
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Old 01-05-2015, 03:47 PM
Gold323Ci Gold323Ci is offline
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My 08 650i passenger front fender also has a crack in it. I have never seen such and was shocked that someone else has the same issue.

I'll try and post a photo soon. It is only a few inches from where the door and hood close on top of fender. Is the fender really plastic? Feels like metal to me.
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  #7  
Old 01-05-2015, 04:56 PM
sentrex sentrex is offline
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i have some too, but i did mine trying to get to the lights so its my fault i don't see it being a big deal its hidden when the hood is down
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  #8  
Old 01-08-2015, 12:02 PM
Gold323Ci Gold323Ci is offline
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Here's a photo of the crack in my fender on the passenger side. The back of the hood is on the top right side of photo.
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  #9  
Old 01-08-2015, 01:25 PM
sentrex sentrex is offline
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damn thats bad mine are just where the wholes for the screws are i have none visible like that
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Old 01-10-2015, 09:54 AM
Cazemering Cazemering is offline
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Thanks for the replies. I tried to release the tension by loosening the bolt, but that did not help...I also called the dealer but their service guy did not even want to look at it.. Referered me to a body shop. Said they don't crack and something must have happened. He had never seen it in his 20 years of history. I believe that, but I wonder how many 08 6's are included in that dataset but did not want to get into a discussion about what a representative dataset looks like before you can conclude something like that. What's disappointing is the lack of interest or service.
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  #11  
Old 01-10-2015, 11:29 AM
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645/333 645/333 is offline
Michael
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Quote:
Originally Posted by Cazemering View Post
Thanks for the replies. I tried to release the tension by loosening the bolt, but that did not help...I also called the dealer but their service guy did not even want to look at it.. Referered me to a body shop. Said they don't crack and something must have happened. He had never seen it in his 20 years of history. I believe that, but I wonder how many 08 6's are included in that dataset but did not want to get into a discussion about what a representative dataset looks like before you can conclude something like that. What's disappointing is the lack of interest or service.
To be fair once it has cracked then the only way to repair is a respray and just ensure other bolts will not cause a similar issue!!!!
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Old 01-10-2015, 12:11 PM
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roseng roseng is offline
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Quote:
Originally Posted by Cazemering View Post
Thanks for the replies. I tried to release the tension by loosening the bolt, but that did not help...I also called the dealer but their service guy did not even want to look at it.. Referered me to a body shop. Said they don't crack and something must have happened. He had never seen it in his 20 years of history. I believe that, but I wonder how many 08 6's are included in that dataset but did not want to get into a discussion about what a representative dataset looks like before you can conclude something like that. What's disappointing is the lack of interest or service.
Cazemering,

I think you are getting the straight story form the dealer. I've never heard of this anywhere before.

The front fenders are held on by a special bolt that has 2 pieces. One is below the fender facing up and has a small attached washer that comes up from the bottom into the fender opening. On the top is a regular washer and the bolt.

This is done to hold the fender in-place without putting pressure in the actual plastic. It also allows a very small amount of play as the plastic will bend and react to temperature and movement.

If the bottom washer is missing and the fender was tightened hard to the body, that would explain the crack. I would examine both fenders and confirm that these are properly in place before you do any repairs.

If there was some body work done to the car before you got it, and the shop did not understand the fender fastening system that could explain it.
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Last edited by roseng; 01-10-2015 at 12:13 PM.
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  #13  
Old 01-10-2015, 12:32 PM
BETO1984 BETO1984 is offline
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Yes i work in a bodyshop and we have repaired a few 6ers, most of the 6ers that came in with cracks on the fenders were due to tire rubbing on the inside of fender and the plastic cant tolerate that much pressure, if it was a metal fender it would of bend instead of cracking, and most 6ers that we fix had big wheels like 22s, alot of work to fix them, not hard but time consuming as you have to remove the fender to do the repair from the inside with fiber glass of plastic welder depending on the size of the crack, then refinishing the fender, and if the crack is too close to the door you have to refinish/blend the door for colormatch purposes.
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  #14  
Old 01-11-2015, 08:37 AM
Cazemering Cazemering is offline
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ok ..thanks for the helpful info and helping me understand the potential causes. I will take it to the body shop and have them fix it before it gets worse. Appreciate rebalancing my view on the dealer. Guess I owe them a next service. Thanks!
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  #15  
Old 01-11-2015, 01:12 PM
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roseng roseng is offline
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Quote:
Originally Posted by Cazemering View Post
ok ..thanks for the helpful info and helping me understand the potential causes. I will take it to the body shop and have them fix it before it gets worse. Appreciate rebalancing my view on the dealer. Guess I owe them a next service. Thanks!
In general, there is not much love for dealers, and that's often well deserved. At least on this matter you got a straight answer. If you are lucky, that will be case with everything they tell you.
Good luck.
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  #16  
Old 03-30-2015, 09:27 PM
swfunhog swfunhog is offline
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i just found a crack on mine today in the same place. i have an 05. cant believe i just saw this thread.
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  #17  
Old 06-28-2015, 05:04 AM
Bryant Bojewski Bryant Bojewski is offline
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I have the same problem. Passenger side near door. Really upsets me since the local dealership shows absolutely no interest nor do they give recommendations. It seems to be a common problem in six series. Im wondering if a factory replacement fender (painted ) can be ordered.
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  #18  
Old 06-28-2015, 05:08 AM
Bryant Bojewski Bryant Bojewski is offline
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exact same place mine cracked - 08 650i conv.
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  #19  
Old 11-25-2015, 10:23 AM
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Yep. Both sides for me. I thought it was a body issue like sub frame bushings or something.
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  #20  
Old 11-25-2015, 12:08 PM
dabigdawg dabigdawg is offline
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I have the same crack on the passenger side qtr panel
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  #21  
Old 01-25-2016, 12:51 PM
gcapuno gcapuno is offline
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I have an M4 with crack fender paint due to stress on the aluminum fenders ... a similar issue and so disappointed with BMW and dealer. Only thing they propose is to repaint the fenders since I was told they do not stock painted fenders. I believe that repainting the fenders is a convenient solution for BMW but bad for owners. First this does not address the stress issues and the cracking will most likely reoccur. Second, repaint the fenders on a new car will depreciate the car; and if you don't think so, given the opportunity to buy 2 identical cars would you choose the one the is repainted or one with original paint. Thirdly, repainting will not have the durability of factory paint, it will not be as hard as original paint and it will not have the same thickness as original paint. Lastly, if you were to trade in the car, most dealers will test each panel with a paint thickness gauge to verify if the car has been repainted and pay you less if repainted. I probably would think twice in buying another BMW if they have paint cracking issues and their resolution is to cover up the problem with new paint.
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  #22  
Old 01-25-2016, 04:46 PM
FredoinSF FredoinSF is offline
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Quote:
Originally Posted by gcapuno View Post
I have an M4 with crack fender paint due to stress on the aluminum fenders ... a similar issue and so disappointed with BMW and dealer. Only thing they propose is to repaint the fenders since I was told they do not stock painted fenders. I believe that repainting the fenders is a convenient solution for BMW but bad for owners. First this does not address the stress issues and the cracking will most likely reoccur. Second, repaint the fenders on a new car will depreciate the car; and if you don't think so, given the opportunity to buy 2 identical cars would you choose the one the is repainted or one with original paint. Thirdly, repainting will not have the durability of factory paint, it will not be as hard as original paint and it will not have the same thickness as original paint. Lastly, if you were to trade in the car, most dealers will test each panel with a paint thickness gauge to verify if the car has been repainted and pay you less if repainted. I probably would think twice in buying another BMW if they have paint cracking issues and their resolution is to cover up the problem with new paint.
While I sympathize and I would be very upset myself if this happened on a brand new car, the only point I agree with is the paint thickness gauge; it does not lie. It's not going to generate a collision loss event on Carfax, and with proper documentation it should not affect your trade in or lease turn in. While BMW needs to up their quality in certain areas, they are repairing the car per the terms of the warranty. A new fender would have to be painted, they are not order by color parts.

You posted this in the 6 series forum where the cars are between 6 and 12 years old, mostly depreciated, and likely have had some sort of cosmetic respray or are sporting battle scars. I'm not sure if it's terribly relevant to post your story here, but it must feel good to vent. I hope the repair on your car is of high quality. You have a nice car, a very nice car actually, do not let this ruin the ownership experience. Get it fixed and enjoy it. This will seem like nothing when someone rams your rear bumper or you curb a wheel while you're parallel parking in San Francisco.
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  #23  
Old 01-26-2016, 04:11 AM
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645/333 645/333 is offline
Michael
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Whether the car is old or new, all the panels get stressed in some shape or form, especially in those areas of bad potholes etc..... the cause of these cracks is probably many fold all contributing to the issue. I think in the short term you can only do simple things like check the tension of the bolts on the panel, to loose will give as many issues as to tight. When I checked mine some were loose and others tight (whether the correct torque no idea??). In the ones that were loose especially at the front caused poor panel fit which I had not realized until I checked one day!!!
What was interesting when I released two of the bolts how much the panel moved with the release of the tension, almost as if on a spring!!!!!
I then undid all of the bolts and reset the wing!!! I then went around the car on a hunt for loose panel bolts, I found some very loose especially around the front of the soft-top!!!! How anal is that ??????????
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Last edited by 645/333; 01-26-2016 at 04:17 AM.
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