[CaptainFlasheart]

Hi,

I'm having problems with my ACC - not had the car long and bought it knowing there might be an issue. I'm getting the 'collision detection malfunction' or words to that effect on the iDrive and also ISTA showing a ACC internal fault which comes back immediately when cleared. This is a permanent situation now, happens every start.

I have sourced a replacement used radar sensor module but I believe it will need coding into the car - is that the case?

Also, what are the chances of not needing to get the whole system recalibrated if it works? Anything else I need to be aware of?

Thanks,
Ted

[smrtypants44]

I retrofitted ACC to my car and never had it calibrated.

[CaptainFlasheart]

OK, so have got hold of the replacement sensor which is from a 2015 car (mine is 2014), see attachment. Connected it up and now getting ISTA fault code 482188 - 'The coding data in the control unit do not match the vehicle'

Any ideas? Is this something that can be fixed with ISTA or am I looking at going to a specialist?

Thanks

[Wires]

Originally Posted by smrtypants44

I retrofitted ACC to my car and never had it calibrated.

What was entailed in doing this? Was it expensive?

[smrtypants44]

Originally Posted by CaptainFlasheart

OK, so have got hold of the replacement sensor which is from a 2015 car (mine is 2014), see attachment. Connected it up and now getting ISTA fault code 482188 - 'The coding data in the control unit do not match the vehicle'

Any ideas? Is this something that can be fixed with ISTA or am I looking at going to a specialist?

Thanks

steve@codemybimmer coded mine remotely for a resonable price.

[smrtypants44]

Originally Posted by Wires

What was entailed in doing this? Was it expensive?

Yeah $2-3k
New Grille
ACC Sensor
ACC sensor brackets
Front Bumper Harness
ABS Sensors
ABS Pump
ICM Module
Steering Wheel Buttons
Coding

[toxik]

Originally Posted by smrtypants44

Yeah $2-3k
New Grille
ACC Sensor
ACC sensor brackets
Front Bumper Harness
ABS Sensors
ABS Pump
ICM Module
Steering Wheel Buttons
Coding

just out of curiosity what is the ABS Sensor and Pump for when it comes to ACC?

[smrtypants44]

Originally Posted by toxik

just out of curiosity what is the ABS Sensor and Pump for when it comes to ACC?

Not sure, my guess is that its beefed up for computer control of the brakes? The brake hard lines also have different part numbers for acc but I didnt change those.