brake assist not working ml 320 1999
 

the brake assist system keep warning and emergency traction system . it shows all the time in the panel. do u think the sensor is not working and which sensor... pls. help

Sun(electronic testing company) had a saying "Dont guess, TEST". OF course thay wanted you to buy their equiptment.

That system is computer controlled so have someone with a MB scanner TEST that system for codes.

I've got a similar problem with my 01 C240, however my BAS warning light only comes on once in a while. I'm guessing (hoping) it's only the sensor. Any thoughts? Thanks.

IF intermittent(esp if roads are wet), I was told to look at the following on a ML320
 

On ML320
Remove the:
*left front wheel
*the left plastic wheel well in order to gain access to the fuse/electrical
box remove the wire connectors and clean and dry the latter. Even
consider silicone if one suspects water seeping in through the wheel
well and settling below the fuse/electrical box and creating a short.
* Also failing the above someone said look for chaffed abs/wheel sensor wires to each wheel hub especially around the fuel tank

AND for perhaps related information click here:http://www.peachparts.com/shopforum/showthread.php?t=85981