Rear control module fault
03-12-2018, 04:52 PM
#1
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Location: Surrey, UK
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CLK320 2009 (W209)
Rear control module fault
Hello
I've got the dreaded single window which will not operate. Rear right window is dead. Done my research, searched forums, below are my findings;
Regulator is working. Goes up and down with manual power. Error code from module reads; Memory overrun while writing to EEPROM (009266). Cleared it, no good, comes back. Related fuses all checked. Battery unplugged for a couple of hours. Nothing
Any ideas? Firmware upgrade needed? Whole new module?
CL63 from 2008. Am I right in saying there is only 1 rear for the coupe?
Thanks!
G.
I've got the dreaded single window which will not operate. Rear right window is dead. Done my research, searched forums, below are my findings;
Regulator is working. Goes up and down with manual power. Error code from module reads; Memory overrun while writing to EEPROM (009266). Cleared it, no good, comes back. Related fuses all checked. Battery unplugged for a couple of hours. Nothing
Any ideas? Firmware upgrade needed? Whole new module?
CL63 from 2008. Am I right in saying there is only 1 rear for the coupe?
Thanks!
G.
04-05-2018, 04:02 PM
#2
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Join Date: Aug 2014
Location: Surrey, UK
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CLK320 2009 (W209)
This issue is now behind me. I'll post the latest information in-case anyone searches.
I had an independent dealer update the code on the rear control module only (£54 Auto Class, East Midlands UK) which brought the window control back to life. The window refused to close properly (even after a window resync) when you close the door or close the front window. I disconnected the battery for 30 minutes at this point, reconnected and attempted to hold the window switch up for 10 seconds and now all is well again.
Cheers
G.
I had an independent dealer update the code on the rear control module only (£54 Auto Class, East Midlands UK) which brought the window control back to life. The window refused to close properly (even after a window resync) when you close the door or close the front window. I disconnected the battery for 30 minutes at this point, reconnected and attempted to hold the window switch up for 10 seconds and now all is well again.
Cheers
G.
