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      09-10-2010, 07:50 AM   #1
dhoggm3
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E93 Roof Finally Fails

The folding hardtop on the E93 is a (HEAVY) mechanical wonder. First time I saw it I thought "that looks pretty complicated - I wonder how reliable it will be?"

Now, with 11,000 miles on my '08, I have my answer. The passenger side latch is refusing to open fast enough, so it hangs up. At first I could push up on it and get it to go, but now it won't even do that. The motor just strains and the latch refuses to give. It's at the dealer now for the warranty work.

Gotta get the top down to fully enjoy the AA exhaust!
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      09-10-2010, 08:01 AM   #2
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Sorry to hear it. I hope they get it fixed quickly, and correctly the first time.

FWIW, my car has 30k miles on it now, and the top still works just like the day I got it. I think your case is just the exception. Though as more people put on more miles, I expect there will probably be others too.
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      09-10-2010, 09:14 AM   #3
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I wonder how much strain intense driving puts on the roof mechanism. Were you driving it pretty hard those first 11k miles? How much use of putting it up and down? I have 17k miles, no issues except comfort access up and down always seems to stop then I have to depress and repress the key again. I don't put it up and down all that often though.
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      09-10-2010, 09:25 AM   #4
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I realize this is an apples vs oranges comparison, but it may apply. I had a 99 Mustang Cobra convertible that I would, on occasion, take to the track. All the hard turning eventually took it's toll and my roof would hang up on the passenger side. I eventually got subframe connectors and a 6 pt roll cage installed and it took care of the problem. I guess the chassis flex caused a slight distortion in the frame which in turn caused the latch to hang up on the windshield frame.

Of course my Mustang's frame wasn't nearly as stiff as the M3's, but I imagine there is still some flex in the convertible M3 chassis during spirited driving.
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      09-10-2010, 10:13 AM   #5
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I don't track this car or drive it anywhere near its limits.

The first time this happened i was parked diagonally on a slight incline, maybe 5%. That may have set it off due to body flex.
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      09-10-2010, 10:39 AM   #6
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you know what ive seen and heard my pass side latch get stuck a few times now or when it opens it "pops" on that side, once it got totally stuck, i should mention it
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      09-10-2010, 10:42 AM   #7
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It is probably a good idea to open and close the roof when the car is on a flat level surface.

CA
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      09-11-2010, 08:34 AM   #8
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Got car back yesterday. 1/2 hour labor - under warranty - to adjust the alignment of the clip. Dealer says no big deal. Haven't actually tested it but I expect no glitches.

Not really much of a fail. It's a pretty impressive piece of engineering.
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      09-11-2010, 09:11 AM   #9
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Two things to keep in mind. First of all, do not try and put the roof up or down in traffic. If you drive with it partially up or down you can seriously damage the mechanism. Better to pull over. Second. make sure that it's completely dry when retracting.
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      09-11-2010, 12:03 PM   #10
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Anyone know how much the top itself weighs? I think people assume that the whole 400lbs is in the top, but I believe most of it is in the chassis/frame.
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      09-13-2010, 05:21 PM   #11
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Quote:
Originally Posted by captainaudio View Post
It is probably a good idea to open and close the roof when the car is on a flat level surface.

CA

I agree
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      09-14-2010, 11:20 AM   #12
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Quote:
Originally Posted by dhoggm3 View Post
Got car back yesterday. 1/2 hour labor - under warranty - to adjust the alignment of the clip. Dealer says no big deal. Haven't actually tested it but I expect no glitches.

Not really much of a fail. It's a pretty impressive piece of engineering.
You didn't test it before you left the dealer??? Wow. You must have confidence in them. Personally, I expect any work the dealer does to be 50/50 on leaving me satisfied.
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      09-14-2010, 12:34 PM   #13
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      02-25-2011, 12:56 AM   #14
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I just had the same problem solved remarkably by just applying grease to the hole of the guiding part of the latch. I couldn't believe that it worked. Mine was sticking on the passenger side really bad. I hope this helps...
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      02-25-2011, 01:21 AM   #15
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Quote:
Originally Posted by M3chris View Post
I just had the same problem solved remarkably by just applying grease to the hole of the guiding part of the latch. I couldn't believe that it worked. Mine was sticking on the passenger side really bad. I hope this helps...
Yep, I just had this same problem as well and took my car in about a month ago.

The passenger side would stick when I'm dropping the top and would suddenly let go with a loud pop.

Took it in to the dealer and they threw some lube on it and told me it was no big deal. Ever since, it's been working like the day that I bought it!
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      02-25-2011, 03:18 PM   #16
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My e93 335i never gave me a top problem

i had it for 18 months 19k miles

I also had a smart top

i probably opened and closed the top about 4 times a day... (well sometimes never as well etc..)

also, with the smart top, if i was opening or closing at a light and the light changed, i would drive slowly until the top finished operating; as long as it was level and I wasn't going too fast everything worked great
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      02-25-2011, 06:05 PM   #17
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Quote:
Originally Posted by M3chris View Post
I just had the same problem solved remarkably by just applying grease to the hole of the guiding part of the latch. I couldn't believe that it worked. Mine was sticking on the passenger side really bad. I hope this helps...
When in doubt - lube the hole!
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      02-25-2011, 06:21 PM   #18
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E90post needs an E93 forum for stuff like this. I'm sure these cars are going to need more help once they get older, oldest is only about 3.5 years old, and having it all in one place would be excellent. Could put it here too and redirect to the E90 forum
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      02-25-2011, 06:39 PM   #19
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Quote:
Originally Posted by Rshane View Post
I realize this is an apples vs oranges comparison, but it may apply. I had a 99 Mustang Cobra convertible that I would, on occasion, take to the track. All the hard turning eventually took it's toll and my roof would hang up on the passenger side. I eventually got subframe connectors and a 6 pt roll cage installed and it took care of the problem. I guess the chassis flex caused a slight distortion in the frame which in turn caused the latch to hang up on the windshield frame.

Of course my Mustang's frame wasn't nearly as stiff as the M3's, but I imagine there is still some flex in the convertible M3 chassis during spirited driving.
face it, the M3 wasn't designed to be a vert in mind.
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      02-25-2011, 06:50 PM   #20
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Keeping the mechanism/latches/hinges clean and lubricated will keep the top working properly for a long time. Friction is your enemy on any unit like the top on the E93 BMW's. Just like any mechanical device if it is properly maintained it will work much better.
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      02-25-2011, 06:53 PM   #21
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Quote:
Originally Posted by Powerslide View Post
When in doubt - lube the hole!
second best quote of the year
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      10-17-2012, 11:55 PM   #22
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Quote:
Originally Posted by eisenb11 View Post
The passenger side would stick when I'm dropping the top and would suddenly let go with a loud pop.

Took it in to the dealer and they threw some lube on it and told me it was no big deal. Ever since, it's been working like the day that I bought it!
Interesting, mine has started doing this maybe one out of 3 times. lately it will stick completely but open if it give the roof a smack.

think i'll try the guide trick and see what happens ...
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