AC basic to AC high retrofit DIY rev.3
Members
Joined: Jul 2011
Posts: 235
Likes: 1
From: Belgium
My Ride: BMW 525dA 2007 pre-LCI.
Model Year: 2007
I did this mod today as well,(pre lci car with lci high panel) and like one other here i got the engine fan running on full..
he mentioned pin 21 mod, i didnt quite understand that? can someone please explain this to me?
Im going to do the coding now but i didnt understand if that would fix the engine fan problem.
EDIT: fixed it myself after i found the actual schematics on the WDS.
Pin 21 (brown blue) coming from the vehicle harness) is supposed to be grounded from keeping the engine fan spinning at full speed.
he mentioned pin 21 mod, i didnt quite understand that? can someone please explain this to me?
Im going to do the coding now but i didnt understand if that would fix the engine fan problem.
EDIT: fixed it myself after i found the actual schematics on the WDS.
Pin 21 (brown blue) coming from the vehicle harness) is supposed to be grounded from keeping the engine fan spinning at full speed.
Last edited by SweetBMW; Apr 15, 2013 at 02:46 AM.
Thread Starter
Contributors
Joined: Mar 2009
Posts: 2,553
Likes: 0
From: Essex, UK.
My Ride: 2006 530 d M-sport e60
Finally got the AUC (auto air re-circulation) working, When I fitted the AUC sensor it was causing the IHKA to register an error, turns out the coding was wrong. You need to set AUC_sensor to nicht_aktiv.
Hi blood. After I did all the retrofit I didn't try to see if the ac is working. All the buttons r working and the fan is not on anymore, but when I press the ac button I can't really hear the ac kicking in and there is not cold air coming. I don't know if I need to refill the ac or there is something else. I fitted the dollar sensor and the car was coded. Do u know what the problem is? Thank u !!!
Thread Starter
Contributors
Joined: Mar 2009
Posts: 2,553
Likes: 0
From: Essex, UK.
My Ride: 2006 530 d M-sport e60
Hi blood. After I did all the retrofit I didn't try to see if the ac is working. All the buttons r working and the fan is not on anymore, but when I press the ac button I can't really hear the ac kicking in and there is not cold air coming. I don't know if I need to refill the ac or there is something else. I fitted the dollar sensor and the car was coded. Do u know what the problem is? Thank u !!!
I'm in lincoln uk.
The car was coded and everything works exept the ac. The car is a 2004 the unit I replaced is the one with the auto on the middle button.
Please tell me how do I do that? What do I need to change?
Thank u
The car was coded and everything works exept the ac. The car is a 2004 the unit I replaced is the one with the auto on the middle button.
Please tell me how do I do that? What do I need to change?
Thank u
Last edited by gabrielureche; May 8, 2013 at 12:22 AM.
Members
Joined: Jul 2011
Posts: 235
Likes: 1
From: Belgium
My Ride: BMW 525dA 2007 pre-LCI.
Model Year: 2007
Setting it to inactive doesn't sounds realy logic. How are you sure its working and not just disabled ?
Last edited by tom_il; May 8, 2013 at 12:15 PM.


