Hi All
Bit of a lazy post!! Got the dreaded A68D Microswitch, roof shell right Code on the roof and need to order the Switch. Does anyone have a link before I go looking..
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Roof Issues
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Onlinebigwinn
- Lifer
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Roof Issues
If the forum helped you, why not help the forum back. Thats the Z4 way! 
EWS Delete PM me
Coding- airbags etc PM me
GM5 repair- PM me
Roof problems? E85 and E89 PM me… E86 less so
EWS Delete PM me
Coding- airbags etc PM me
GM5 repair- PM me
Roof problems? E85 and E89 PM me… E86 less so
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Gingerlomax
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Roof Issues
Brill Bigwin. I assume its 2 & 3.. Also it has started binging at me even thou the roof is shut, I assume that's because these switches have failed.
2010 Black E89 35i
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Gingerlomax
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flybobbie
- Lifer
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Roof Issues
Probably broken wire, waste of money buying switches.
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awt
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Roof Issues
Agree, it's 99% certain that the wires is the problem.
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kinger
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RobbiZ4
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Roof Issues
RobbiZ4 wrote: Thu May 08, 2025 4:25 pm The 2 roof microswitches (MS) hardly ever fail and are very special to replace. Don't touch it.
But the two MS on the coupling rams in the trunk should be replaced each decade.
Z4 E89 Roof Topics
viewtopic.php?t=130932
Y1 ... Y4 Roof Diagnostic Systems for BMW, AUDI, VOLVO
viewtopic.php?f=23&t=129048
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simnew
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Roof Issues
Jumping in on this thread - apologies for the slight hijack….
When replacing / slicing in new wiring to fix a A68B error message, I assume it makes sense to do it both sides? Also are there adjacent wires that should / could be replaced as a precaution? Only saying this as I want to get as many bases covered when I get my roof fixed and this might help the OP as well
When replacing / slicing in new wiring to fix a A68B error message, I assume it makes sense to do it both sides? Also are there adjacent wires that should / could be replaced as a precaution? Only saying this as I want to get as many bases covered when I get my roof fixed and this might help the OP as well
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RobbiZ4
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Roof Issues
Wires will break only in the upper, not visible bow behind the rear roof shell, nowhere else.
E89: Collection of the 9 typical age-related defects in the roof environment
viewtopic.php?t=148657
E89: Collection of the 9 typical age-related defects in the roof environmentviewtopic.php?t=148657
Z4 E89 Roof Topics
viewtopic.php?t=130932
Y1 ... Y4 Roof Diagnostic Systems for BMW, AUDI, VOLVO
viewtopic.php?f=23&t=129048
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flybobbie
- Lifer
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- Location: Stourbridge
Roof Issues
If you want to future proof, replace the one pair left and two right.
Chop the cables as close as possible to switch or sensor and replace at least over the first bends.
I have had no problems since.
Chop the cables as close as possible to switch or sensor and replace at least over the first bends.
I have had no problems since.
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awt
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Roof Issues
I had one that broke further down, so it is possible.RobbiZ4 wrote: Tue May 13, 2025 6:58 am Wires will break only in the upper, not visible bow behind the rear roof shell, nowhere else.
With that being said, it already had been repaired in the upper part, so it will brake there first.
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simnew
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Roof Issues
Is it just the one wire to this micro switch that is the main worry point ? (On both sides of course)
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awt
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Roof Issues
It's all the wires to the micro switches. 6 in total.