HELP No brakes on mercedes e class w211

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shz

New Member
Joined
Sep 23, 2014
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1
Car
W211 E Class
The brakes have failed on mercedes e class w211. When I start the car in the morning I get vibration and rough idle and after 5 minutes I get red light "brakes defective, stop vehicle" "esp defective" and abs light, also get audible alarm and if I stop I can't get out of park position. When I switch off vehicle I lock, unlock, open, close door, and I get noise from pump under bonnet and the brakes work fine no vibration, no rough idle, no malfuntion lights apart from "service brake visit workshop" and "indicator light bulb error" I have changed indicator bulb and swapped holders but still not working. Is it most likely my abs/sbc pump is nackered as when it is not working it gives a noise like the electronics have failed. My part number is SBC A 004 431 42 12 Q6, can anyone help me locate a pump. Or can my pump be salvaged by updating software, or bleeding the pump.
 
You need to visit a specialist workshop and have it properly diagnosed. Otherwise you will spend a fortune guessing.

Tell us where you are and someone will recommend a local specialist.
 
Before going any further, check the auxiliary battery voltage.
 

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