ACC Not Available

[omfg5041]

Hi friends!

I have a 2018 Golf GTI with ACC.
At some point, my ACC stopped working, and I'm not sure why.

I checked codes - the only thing coming up (and its showing twice) is C110300 - Adaptive cruise control sensor (misadjusted)

I tried clearing them to see if it would go away, but no luck.
I went to live data to see if there was anything obvious, but nothing stuck out at me.

Misalignment angle, horiz - 0.329°
Misalignment angle, horiz, fast algorithm - 0.196°

No other codes coming up.

I really don't want to go to the stealership for this, as I feel like it'll be $$$.

Any suggestions are appreciated.

[vwjap]

Check the bracket isn’t broken

[omfg5041]

vwjap Which bracket?

[vwjap]

Behind the front grill

[omfg5041]

Not broken.

[dv52 (Australia)]

omfg5041 : My apology to vwjap for interrupting - but if you are certain that there isn't a physical problem with the radar, you could try the DIY process for re-calibrating the radar.

Not sure if you are aware of this process - but a DIY re-calibration is only possible if the following variables:

• Vertical angle deviation
• Horizontal angle deviation
  

are between -0.800° and +0.800°. If the deviations are beyond this range, you will need to get a fundamental calibration of the radar from a dealer (alas)

I note that you have said that the 2nd measurement above is - 0.329°. So, go back to Live Data and read the vertical angle deviation.

If both of your deviation angles are within the limits - then maybe follow the procedure outlined -HERE (it doesn't matter that the link is VCDS - the process is basically the same for OBD11)

Don

[omfg5041]

Hey Don (dv52 (Australia))
I can’t find the Vertical angle deviation in Live Data. I also can’t find reset misadjustment angle in Basic Settings. I’m using OBDEleven for iOS.

Any thoughts?

Thanks for your help!

[dv52 (Australia)]

omfg5041 : OK - I suspect the problem might be the version of radar that's fitted to your car. There are basically 2 x physical types and 3 x electronic tyes - like this:

Long Range Radar – (up to 250m, up to210km/h)

Middle Range Radar:Gen 1 – (up to 160m, up to 160km/h or up to 210km/h) - used with Lane Assist camera)

Middle Range Radar:Gen 2 & Gen 3  – used with Pedestrian protection and predictive ACC

Don

[omfg5041]

Thanks for the reply dv52 (Australia). I'm not quite sure I understand. Are you suspecting that one of the radar's is faulty?

[dv52 (Australia)]

No I'm not suggesting that - there is only ONE radar on the car, which will be either of the two types that I have shown. I'm suggesting that maybe the live data options are different depending on the radar version installed

Don

[claudiorocha07]

Hey Don, in my case in Output test I selected Component Protection. After this, ACC doesn't work.

[dv52 (Australia)]

what is the error message on your scan? Post-up a copy -please

Don

[omfg5041]

OBDeleven vehicle history log
Date: 2023-06-20 10:31:26

VIN: 3VW447AU4JM269372
Car:
Year: 2018
Body type: D5 Hatchback
Engine: CXCB kW ( hp) l
Mileage: 66502 km

---------------------------------------------------------------
13 Adaptive Cruise Control
System description: ACC BOSCH MQB
Software number: 5Q0907572J
Software version: 0654
Hardware number: 3QF907572
Hardware version: H10

Faults:
C110300 - Adaptive cruise control sensor
misadjusted
static
Priority - 4
Malfunction frequency counter - 1
Unlearning counter - 185
km-Mileage - 55430 km
Dynamic environmental data - 028D5F0285841011000010120000102E00
date - 2022-07-21 10:24:25

C110300 - Adaptive cruise control sensor
misadjusted
static
Priority - 4
Malfunction frequency counter - 1
Unlearning counter - 185
km-Mileage - 55430 km
Dynamic environmental data - 028D5F0285841011000010120000102E00
date - 2022-07-21 10:24:25

[omfg5041]

I tried to clear the codes today, but it didn’t work…

I took the emblem cover off, took the sensor out completely, cleaned them both, and reseated the sensor.

Did a reset with OBDEleven, and cleared codes… went away… and seems to be working again???

[karim33]

hello, have you reserve the problem I have the exactly the same problem of you ....