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ACC not avaible
Posted: Wed Aug 15, 2018 12:46 pm
by rs6danbar
Attempted to use my cruise control this morning, where unavaible. Got the message " ACC ( Automatic cruise control ) not avaible".
I know the radar lens sometimes gets dirty and then wont be able to measure the distance to the the next car but it should not be a problem as i just washed it.
I also read somewhere that the rotors / breakpads have something to do with it, how could?
Recently swapped front pads but i cant understand how that could be the problem.
Anyone else experienced this before? New radar costs alot.
Re: ACC not avaible
Posted: Wed Aug 15, 2018 1:51 pm
by Nige_RS4
I saw this on my Golf and couldn't figure out what was up but I pressed the speed increase a couple of times and it then allowed me to activate it. Maybe if your ACC speed is set to 0 then it won't turn on?
Re: ACC not avaible
Posted: Wed Aug 15, 2018 3:49 pm
by rs6danbar
Nige_RS4 wrote: ↑Wed Aug 15, 2018 1:51 pm
I saw this on my Golf and couldn't figure out what was up but I pressed the speed increase a couple of times and it then allowed me to activate it. Maybe if your ACC speed is set to 0 then it won't turn on?
I'll try it out once i get it back from service, worked couple of weeks ago i remember!
Re: ACC not avaible
Posted: Tue Aug 21, 2018 11:12 am
by c3nturi0n
I had a same problem with mine... noticed that radar cover on front grille was slightly cracked.
New part ordered/DIY fitted and it works like a treat now

.
Re: ACC not avaible
Posted: Wed Aug 22, 2018 4:03 pm
by rs6danbar
c3nturi0n wrote: ↑Tue Aug 21, 2018 11:12 am
I had a same problem with mine... noticed that radar cover on front grille was slightly cracked.
New part ordered/DIY fitted and it works like a treat now

.
Saw that mine was slightly loose, gonna see if maybe thats the problem
EDIT:
Just saw that mine is cracked aswell, i dont see why that should keep it from working but i guess sinces theres wires running into it, thatjustmight be the case.
Cleaned the lense and cover, gonna try it out otherwise I'll order a new one, thanks!

Re: ACC not avaible
Posted: Wed Sep 12, 2018 4:30 pm
by rs6danbar
Can you wire the heater somehow?
Re: ACC not avaible
Posted: Tue Sep 18, 2018 11:59 am
by rs6danbar
FYI - Just +/- wired the heater, ACC works perfectly fine without it but i guess in cold weathers the lens might need to be defrosted sometimes.
Re: ACC not avaible
Posted: Thu Apr 07, 2022 4:01 pm
by drsb
For anyone interested, the part number for the Cover (called cover for radioator grille in ETKA) is 4F0 853 631 G.
For my car, the colour code is Y9B - brilliant black - which I assume the colour code for all cars as the middle of all grilles are black?
The Y9B seems to match the codes used for the grill itself - see other thread ...
http://forum.rs246.com/viewtopic.php?f= ... 5c#p880735