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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > BMW Coding > M-ASK retrofitted in a CCC E91



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      08-30-2021, 03:25 PM   #1
Zimzimmer91
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M-ASK retrofitted in a CCC E91

Hi all,

I've a bit of an odd issue where my car seems to have some point had an M-ASK head unit installed where from the factory it should have CCC.

The only issue I've found is the phone book doesn't seem to be able to connect (which is actually a bit of a problem for me), everything else seems to work ok except I get "head unit not coded correctly" then "head unit not programmed correctly" on startup.

As this isn't what is meant to be installed (and I've never coded anything in my life, though I'm sure I could learn) how would I correct this?

I'd install the correct CCC unit but it really doesn't seem worth what ebay sellers are asking for it, considering how old it is!
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      09-01-2021, 12:37 PM   #2
charlie_m
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You may be running into a limitation of the M-ASK unit. You can probably get rid of the error messages by changing the VO. The guys at bimmer-tech may be able to help (https://www.bimmer-tech.net/blog/ite...eries-retrofit) ... for a price
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      09-01-2021, 10:59 PM   #3
Zimzimmer91
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I think I've got bigger problems but thank you for the advice.
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      09-05-2021, 04:11 PM   #4
NesoX
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maybe i can help over TM
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      09-06-2021, 11:05 AM   #5
Zimzimmer91
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That would be great, what's TM?
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