First, sorry to BMWZ4SDRIVE35I2009 for completely hijacking your thread!
Second, thanks to RobbiZ4 for your post on z4-forum about pulling the fuse for the amp to alleviate the gong sound!
Onto coding the CTM or lack thereof:
My Z4 specs are Model Z4 30I (USA) Prod Date 2010-06-18
The initial reason that I thought that my new replacement CTM required coding is that my indy local BMW shop indicated that it was required. Then I saw this article and the last part of the article indicates that post replacement, the next step is carry out vehicle programming / coding.
https://www.newtis.info/tisv2/a/en/e...dules/8IzgzsqS
According to realoem the CTM part is 61359281723 for my car via VIN
https://www.realoem.com/bmw/enUS/sho...diagId=61_2226
It looks like this part is bilaterally exchangeable via realoem
https://www.realoem.com/bmw/enUS/par...&q=61359281723
61359281723
Convertible top module
CTM
From:
03/01/2013
To:
-
Weight:
215.800 kg
Price:
Supersedes:
61359266903
(03/01/2012 — 11/08/2013), Bilaterally exchangeable
61359264978
(09/01/2011 — 02/03/2012), Bilaterally exchangeable
61359240078
(03/01/2011 — 06/13/2013), Exchangeable retrospectively
61359221135
(12/01/2009 — 03/30/2011), Bilaterally exchangeable
61357206762
(09/01/2009 — 12/22/2009), Bilaterally exchangeable
61357206761
(01/26/2009 — 10/02/2009)
So I ordered it from ECS Tuning
https://www.ecstuning.com/b-genuine-...e/61359281723/
The original CTM that came out of car is marked:
61.35 09221135-01
Helbako DE 55892110
101600026 8239
HW 002
SW 05.10.02
2310
Replacement CTM presently installed in car is marked:
61.35 09281723-01
Helbako DE 55892110
172710036 5212
HW 003
SW 06.70.00
4017
The error code messages that I get are Instrument cluster KOMBI fault - A688 Coding data incorrect and A568 No message (status soft top convertible 0x27E), reciever instrument panel, transmitter convertible top module.
My code reader can read the ECU info from the new CTM, but the top still doesn't work, the trunk is inaccessible, and the gong sound is driving me nuts.
But other than that, everything is super...