Nigel Griffiths
Active Member
- Joined
- Aug 8, 2019
- Messages
- 31
- Reaction score
- 6
- Your Mercedes
- viano/2004/3.2 & V 220d/2017/2.1
Hi People
I have an V6 petrol Viano 3.2 (2004) (Just to get round ULEZ in London). I had a newer 2.2 version but sold it, as it didn't comply. Off it went to Botswanna or somewhere in Africa.
Anyway ever since I brought it, the ABS triggers at very slow speeds say, usually around 5-10 mph. You can drive through and it clears. On a MBII reader it never really stores a fault code. Once going into the Automatic Transmission Section, it did store a code say implausible speed reading on rear left. I had the speed sensor replaced, but it still does it. I thought that it must be a rusty reluctor ring, but ringing up Mercedes for a new ring, I found out that there isn't a separate ring on the drive shaft but the wheel bearings have magnetic sections on them that produce the pulse speed.
Reading various forums on the subject, some people advise that get the tacking done, as this could the issue. Other than that, does anyone know whether the magnets fail in the bearing or get covered in corrosion. it going to be a hell of job just to replace a wheel bearing for annoying abs issue at low speed.
any thoughts anyone?
I have an V6 petrol Viano 3.2 (2004) (Just to get round ULEZ in London). I had a newer 2.2 version but sold it, as it didn't comply. Off it went to Botswanna or somewhere in Africa.
Anyway ever since I brought it, the ABS triggers at very slow speeds say, usually around 5-10 mph. You can drive through and it clears. On a MBII reader it never really stores a fault code. Once going into the Automatic Transmission Section, it did store a code say implausible speed reading on rear left. I had the speed sensor replaced, but it still does it. I thought that it must be a rusty reluctor ring, but ringing up Mercedes for a new ring, I found out that there isn't a separate ring on the drive shaft but the wheel bearings have magnetic sections on them that produce the pulse speed.
Reading various forums on the subject, some people advise that get the tacking done, as this could the issue. Other than that, does anyone know whether the magnets fail in the bearing or get covered in corrosion. it going to be a hell of job just to replace a wheel bearing for annoying abs issue at low speed.
any thoughts anyone?