ABS/ESP Errors - How I Resolved Mine
First mechanic used diagnostic and told that the whole module is gone.
2nd said the same and he reprogram the unit. But still.
3rd he said the same. He erased the error and he gently knocked the module with a small hammer multiple times.
The sign gone and my car is running fine for a month now.
Seem this problem is known problem and will happen to all W221.
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Last edited by Zerocarpileup; Jan 7, 2020 at 11:57 PM.
But yes, same symptoms where seemingly nothing worked!
Esp light popped again two months ago. I had to reset steering angle sensor SAS by entering the vehicle into dyno mode, esp off the turn lock to lock.
It solved it for a while then popped again but no luck by lock to lock method.
I found out my car tyres were torn from inner part.
replaced both of them, then did electronic alignment and the steering wheel back to normal by itself.
first they tried the special corrode to time gunge on one of the link wires from the multiplug to the circuit board..... that lasted a bit too long and by the time they realised this they had already moved on to the far more reliable dies at 7 years trick that's so prevalent on a BMW... they just invented sticky brushes on the ESP pump motor...
that's why whacking the pump motor worked for a few months.... make the brush guides to tight at the factory and after a few years of carbon dust they start too stick... the big fix is to replace the brush pack with a better quality ford part.











