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I suddenly have issues with some assist features like dyncamic cc, active brake assist, and active blind spot assist (see pictures attached, in Dutch )
Where are the radar modules placed? Apparently, the previous owner had an issue where the right-side radar module was replaced. I thought there was only one module behind the star/grill.
A quick printout of error messages state: Radar ADC - SGR (Controlunit Radarsensor) >> U1502 87 Communication with radarsensor 2.
Which radarsensor is radarsensor 2? Something to be fixed diy?
They are integrated behind the bumpers and the grill. One in the front behind the star for DISTRONIC and Active Braking and two in the rear bumper (left and right) for Blind Spot Assist and detecting cars behind you in general. Not sure how they are numbered, but I'm guessing number 1 is the front and 2 and 3 are the rear modules. Probably 2 is driver side and 3 is passenger. Anything to do with ADAS isn't really DIY as there is usually calibration involved if something needs to be replaced adjusted. One cause that's come up in the past if the ADAS systems suddenly fail are voltage issues. How old is your battery? Or the other rear module has failed now and needs to be replaced as well.
Interestingly enough, the errors have been there for a couple of weeks already. Today, all of a sudden, they disappeared, and I was able to use CC with active distance assist, etc. After a 20-30min drive, the errors popped on again.
Almost looks like a connection issue, or maybe corroded connections or something. The only think I changed was new front tires
Interestingly enough, the errors have been there for a couple of weeks already. Today, all of a sudden, they disappeared, and I was able to use CC with active distance assist, etc. After a 20-30min drive, the errors popped on again.
Almost looks like a connection issue, or maybe corroded connections or something. The only think I changed was new front tires
Anyone had happen to experience the same thing?
After completing a long rain soaked foggy night drive my car was filthy. The Rador Sensor Dirty came on and I cleared it both times. The next day the Radar Sensor Dirty warning appeared. See photo below. I checked the front Mercedes front plastic Star cover. Realized it had a few cracked and noticed a sensor behind it. After this I realized my safety warnings were also not working specifically Lane change warning and front end collision warning. Maybe just getting the car washed would have cleared up this issue but I did'nt. So I called the Dealership and they said bring it in. So on the drive to the Dealership another warning came on Radar Sensors Dirty: Driving safety systems are restricted, Clean all sensors. Photo below.
. The Dealership removed multifunction camera and the Hood lens was not functioning as it should. So they replaced the Hood lens and UPDATED it.
The cracked front MB Star was replaced at cost of just under $900.00 and lens and labor was covered under warrant which was expiring in 7 days.
Now the safety features that are on my car are working as it should.
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Where are my C205 radar modules?
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