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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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  #26  
Old 06-04-2016, 09:11 AM
LAJoanie LAJoanie is offline
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Have you done anything about them? What will happen if I do nothing?
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  #27  
Old 06-04-2016, 11:31 AM
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Both of my front quarter panels have the small (1") cracks in the corners by the mirrors (basically I'm the only one who notices them). They have been that way for at least a couple of years and haven't gotten any worse.
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  #28  
Old 06-04-2016, 12:42 PM
LAJoanie LAJoanie is offline
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I have the 2 small ones, but also one over my wheel well that is a few inches long. That one worries me. I guess I'll just watch them. They just
Showed up all of a sudden, because I have a great guy who washes my car weekly and he would have dis something. Did you loosen bolts like other people suggested?
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  #29  
Old 06-04-2016, 04:45 PM
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No - I didn't mess with it
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'14 M6 vert, san marino blue on amaro brown full merino leather, drivers' assistance, exec package, B&O sound system, CCB package, akra exhaust, tint, windscreen, etc.
'07 650i vert, beige/jet black, sports & cold weather pkgs, comfort access, etc.
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  #30  
Old 07-05-2016, 03:29 PM
BIGLMX BIGLMX is offline
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Cracked wings

Both of mine have cracked just near the mirrors, apparently it's quite a common fault
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  #31  
Old 07-07-2016, 09:19 AM
hcrash hcrash is offline
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I have it too...they should pay for the damage as it is not only a few having the same problem...mine was stopped for a few month and it was there...couldn't believe it.
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  #32  
Old 08-07-2016, 08:10 PM
HawleySR HawleySR is offline
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Me too :(

I just noticed that both side have this crack with my 05. Taking a closer look at the screw it doesn't appear to have any wear from a driver. The head looks like it's a Torx T25 or T30 (sun was right in my eyes as I was investigating. Will take a much closer look tomorrow). What bothers me regardless of the age of the vehicle is that it has a specific torque value setting. To tight something gets damaged. To loose something gets damaged. Just right no problem. Over time one would think that this bolt would be torque checked as part of routine maintenance since this is clearly a design flaw or a workmanship issue from the factory.

Someone mentioned the value dropping due to repair work that is now needed. If someone dinged the fender you could sue for diminished value. Resale value on the 6 series is still pretty decent. Lose more value because of a design flaw is not acceptable. BMW should pay the diminished value. If the bolt was tampered by dealership then they should have to pay. If tampered by unauthorized third party that's your fault or try and get them to pay for it. All in all I'm not happy. This feels like I'm going to flush a chunk of money right down the toilet for no particular reason to fix it and then I'm going to take it in the shorts again when I try and sell it or trade it in. Double jeopardy man double jeopardy.
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  #33  
Old 08-08-2016, 02:08 AM
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So I have a theory on this now. The reinforcement plate under the engine might be the issue. Once removed it requires new bolts and the torque value is ridiculous; 55 ft/lbs +90 degrees. They are called stretch bolts. I checked mine out after coming up with the theory; two were loose and the others were no where near spec. Once I tightened them properly, the flexing in my cracks diminished. I used to see the crack open and close, it doesn't any more.
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  #34  
Old 08-09-2016, 03:36 PM
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Nitrogen Nitrogen is offline
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I have the same cracks on both sides driver and passenger. It was from jacking up the car on only one side puts stress on them and they crack. I actually watched one crack so mad.
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  #35  
Old 08-13-2016, 03:21 PM
showtime456 showtime456 is offline
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Just got mines back from the body shop. had my f10 m6 bumper put on as well. changed the bulbs 1 month later and i guess made the bolts to tight. have a crack from the turn signal up. looks bad!!
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  #36  
Old 08-20-2016, 02:43 AM
HawleySR HawleySR is offline
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Quote:
Originally Posted by Mulchman View Post
So I have a theory on this now. The reinforcement plate under the engine might be the issue. Once removed it requires new bolts and the torque value is ridiculous; 55 ft/lbs +90 degrees. They are called stretch bolts. I checked mine out after coming up with the theory; two were loose and the others were no where near spec. Once I tightened them properly, the flexing in my cracks diminished. I used to see the crack open and close, it doesn't any more.
55 ft/lbs +90 degree? What is the +90 degree? Sorry I'm not as mechanically inclined as I'd like to be. Does that mean to torque it to 55/lbs then tighten to nearest 90 degree mark?
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  #37  
Old 08-20-2016, 12:39 PM
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Quote:
Originally Posted by HawleySR View Post
55 ft/lbs +90 degree? What is the +90 degree? Sorry I'm not as mechanically inclined as I'd like to be. Does that mean to torque it to 55/lbs then tighten to nearest 90 degree mark?
It means you torque the bolt to 55 ft/lbs, then get a breaker bar and turn another 90 degrees (or 1/4 turn of the bolt)
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  #38  
Old 09-04-2016, 10:01 AM
HawleySR HawleySR is offline
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Originally Posted by Mulchman View Post
It means you torque the bolt to 55 ft/lbs, then get a breaker bar and turn another 90 degrees (or 1/4 turn of the bolt)
Wow! That can add 25-50 lbs of torgue depending on the size of the bolt. I'm going to do more research to see about having someone other than myself have to pay for this including diminished value. Thanks for the info
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  #39  
Old 12-14-2016, 09:31 AM
Bimmerthomasfox Bimmerthomasfox is offline
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Quote:
Originally Posted by LAJoanie View Post
Has anyone gotten BMW to take responsibility for a crack in the fenders? I have them on both sides of my 08 650i and there was no collision
Had the same issue on both sides - one side just starting with the other already 8 inches on a 2004 645. Will cost over $2,000 to replace both plastic sides. Anyone hear of a better option?
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  #40  
Old 12-14-2016, 09:49 AM
veery veery is offline
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I think it's a design flaw related to the distribution of support of the fender through the bolts, exacerbated by impacts with potholes and such. Over time cracks develop in the areas seen.
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  #41  
Old 12-14-2016, 09:52 AM
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645/333 645/333 is offline
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This is a very common problem and BMW do not want anything to do with it. I would consider taking each bolt off and putting a rubber grommet underneath the same size as the screw head.
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  #42  
Old 03-26-2017, 11:36 AM
Urbanpionr Urbanpionr is offline
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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?
I have this on both front fenders at exact same place. No front end collisions.
E
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  #43  
Old 03-28-2017, 10:27 AM
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Originally Posted by Bimmerthomasfox View Post
Had the same issue on both sides - one side just starting with the other already 8 inches on a 2004 645. Will cost over $2,000 to replace both plastic sides. Anyone hear of a better option?
EBay. $400 each
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  #44  
Old 04-04-2017, 08:46 AM
Eric100 Eric100 is offline
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Cracked fender

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?
=I have an 05 645bmw and both of my fenders are cracked
Due 2 the torque screw's being over tighten, it's a shame that this can happen 2 a $69,000
Car, I had 2 loosen the screw's so it can stop spreading...
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  #45  
Old 04-04-2017, 08:52 AM
Eric100 Eric100 is offline
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Quote:
Originally Posted by Eric100 View Post
=I have an 05 645bmw and both of my fenders are cracked
Due 2 the torque screw's being over tighten, it's a shame that this can happen 2 a $69,000
Car, I had 2 loosen the screw's so it can stop spreading...
I'll try searching for metal fenders...
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  #46  
Old 04-04-2017, 09:27 AM
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645/333 645/333 is offline
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The only way to stop the crack spreading is like on fibre and that is to drill a very tiny hole at the furthest end of the crack and then touch up. Some have had to get new wings, quite expensive unless you go to breakers yards or you just live with them and hope they do not spread. I put rubber washers under each bolt to ease the pressure.
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  #47  
Old 06-07-2017, 02:24 PM
Eval6series Eval6series is offline
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Originally Posted by Gold323Ci View Post
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.
No freaking way! I have the EXACT same crack on mine!
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  #48  
Old 06-07-2017, 02:38 PM
Eval6series Eval6series is offline
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I saw it a bit ago and just noticed how much it has spread. Looks like it's about to snap off
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  #49  
Old 02-10-2018, 05:22 PM
lajih lajih is offline
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Front impact accident

I was involved in a front impact accident in my 2005 645 convertible. The front plastic fender was pushed in, scartched up badly and horizontal cracks all over the fender. Both grilles popped out, and one has a big nick. Both front light lenses have cracks inside the lenses. Both right and left fenders cracked the same as you explain at the bolts. I always wash my 645 convertible, because it is easy to wash and try to take extra care with the soft top. I had never seen the cracks till after the accident. Insurance company says we will not pay for that as it is a common problem with 6 series and was not due to accident. Does anyone know that what they say is absolutely true and this could not be caused at the same symmetrical location with a front impact accident? I will take it to a BMW dealer to check, but I am sure it was caused by the accident. If anyone has any opinion that can help me with this and even if you think this can not be caused by a front impact accident, I appreciate your comments.
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  #50  
Old 02-10-2018, 06:13 PM
HerbP HerbP is online now
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This is very common on the 6 series, one just recently started on mine. It can be repaired, or replace the fender then paint. The crack always seem to appear on the passenger side of the fender.
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2008 650i, cold, crack, cracked, fender, stress


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