Date registered: Nov 2016
Vehicle: 1991 500SL
Mentioned: 0 Post(s)
Quoted: 14 Post(s)
Restored My deactivated ADS (Kinda)
Ok, where to begin. Well I owned a 1991 500SL since 2007 now. The cars ADS was deactivated by a previous owner. After 12 long years I finally restored the system back in the car. It wasn't cheap nor easy, and I've yet to enjoy it as it has a MIL ADS dash light on
I bought a lot of components new, such as shocks, springs, spheres, all the main hoses that run from the pump to the tank to each individual shock absorber. I bought some items second hand from scrap yards such as front and rear valves and some hydraulic lines.
Upon installation, the dash light came on and it gave me DTC 5 Steering angle sensor. There was no angle sensor on my car as my steering wheel was updated to the 96-98 AMG model. I looked up several topics here and used ilcats.ru to get the correct part numbers and hunted for cars with ADS on the scrap yard. After installing humorous Steering Angle Sensors, I always get the DTC 14 Steering Angle Not Activated/initialized. I tried full left lock full right lock and nothing happens at all. The steering angle part number I got was 0085429517 it was from a 91 500SL with ADS, I even got the horn contact plate from the same car, still nothing.
After various attempts, I decided to try the 96-02 steering angle sensor, part number 0005426418. I had to change the steering angle sensor black plug/bracket and airbag plug/bracket to fit my car. I used the ones from the other period correct SAS. Did a full lock left and right turns and viola!!! It works, the light went off. Or so I thought.
Well the light did go off but only for like 10 seconds, it came back one and now it stays on permanently, as in it's on as soon as I turn on the ignition. The DTC is 4 though, which is wheel acceleration sensor. I can't seem to be able to delete this code, it is permanently on. I bought two sensors from the scrap yard for dirt cheap but they didn't work. One of them managed to kill the MIL light for like 5 seconds but it came back on.
Now I'm stuck looking for wheel acceleration sensors in the scrap yard. They all seem in such crap shape, new ones are like 800$. Did anyone have a similar situation like this, or did anyone attempt to fix one of these sensors. I know they are very sensitive to shock it seems
Sorry for the long post, I hope the forum doesn't format it without paragraphs as I noticed that this tends to happen when posting on my phone.