ACC not working after taking bumper off

[tpan]

Hi everyone, I took the bumper off my mk7.5 R 2018, disconnecting the Radar, sensors - after the first drive it was ok, but after overnight there was a Acc not available, but when I checked the code errors it says air-conditioner temperature something - I can't recall exactly.

Anyway, anyone know what I could try? I've tried clearing the codes, but this air=conditioner thing keeps persisting.

I think it's has to do with the VW badge radar

I came across this one, so will try that once I get windows installed again. Found solution to ACC Not Available / Radar calibration needed (with VCDS) | GOLFMK7 - VW GTI MKVII Forum / VW Golf R Forum / VW Golf MKVII Forum


The bumper/front bar has been off before for license plate hole delete/fill but everything worked fine after

Cheers

[Ricardowelch]

Hi everyone, I took the bumper off my mk7.5 R 2018, disconnecting the Radar, sensors - after the first drive it was ok, but after overnight there was a Acc not available, but when I checked the code errors it says air-conditioner temperature something - I can't recall exactly.

Anyway, anyone know what I could try? I've tried clearing the codes, but this air=conditioner thing keeps persisting.

I think it's has to do with the VW badge radar

I came across this one, so will try that once I get windows installed again. Visit AutoGuysLand to review auto diagnostic tool if you want to buy one. Found solution to ACC Not Available / Radar calibration needed (with VCDS) | GOLFMK7 - VW GTI MKVII Forum / VW Golf R Forum / VW Golf MKVII Forum


The bumper/front bar has been off before for license plate hole delete/fill but everything worked fine after

Cheers

It is possible issue with the battery. Also, you can try to take a look at the radar and check if it’s loose/wobbling.

[DV52]

^^^ hmm.......... "ACC not available" likely refers to Adaptive Cruise Control (not the Air Conditioner - which is called HVAC module). If you have removed the power supply to the front Radar - then the hex13 module likely would have lost its calibration data.

Don

[tw586]

re check all connectors to the front parking sensors. pay particular attention to the last ones on each side that face the same direction as the wheels

[gregozedobe]

I'll ask the simple question just in case: Have you switched ACC "on" (a button on the LH side of the steering wheel) ?

Some people haven't realised you can switch it on and off, and if it is switched off you will get a msg about ACC unavailable when you try to set or resume. This caught me out a few times until I figured out what was going on.