abs light

Send the abs pump off to ECU testing in Heanor in Derbyshire.
http://www.ecutesting.com/catalogue/product/bmw_z4_abs_pump__ecumodule_combined_amc916203.html
They will fit improved parts to it. £195 + VAT + removal and fitting labour.
I charge 350 for the whole job, including dropping the abs pump off to them personally and picking it back up.

I have done many..many!
Good luck.
Andy.
 
we took 3 good modul that work! t he pump whas ok(put 12v stright )
clear the cods.and its came back!
the strange thing,its the same thing evry time with difrent modul and pump
in the morning tern the car. lights came.drive 30 km.after 2-3 h
tern on the car.get out the parking..... and its gon!
:x :x
 
So when you put 12V across the pump, you heard the ABS pump motor activate? If you didn't hear the motor activate, it would be the pump motor that is faulty, usually a stuck brush
Here is a good video of pump motor repair if that is what is faulty (and not the control module).
If you have replaced the control module (and coded it to your car, which you say you have done), and it's also not the pump, then there's nothing really left. Have you tried cleaning the electrical connectors at the plug/socket where the control module connects into the car wiring loom? This has also caused error codes/failure occasionally.
[youtube]CmCe98MZ-Yw[/youtube]
 
enzed4 i tride evry thing!!!
3 difrent pump! put 12v and see the pump runing
clean evry thing
noting change!!!
 
the weather is warmer....all lights are gon.....
any axplanation to this?
the lights cam only once in 2 weeks :o :o :o
 
kunta said:
the weather is warmer....all lights are gon.....
any axplanation to this?
the lights cam only once in 2 weeks :o :o :o
Click to expand...
Condensation/moisture on the ABS electrical plug contacts? Does the car live outside?
Sorry, not sure what's going on, it must be extremely frustrating.
 
OK, to summarise, you have:
Replaced the ABS/DSC pump
Replaced the ABS/DSC ECU with an ECU that has the EXACT same part number and coded it to match your car (or refitted the original unit)
Replaced the front left and front right ABS Speed sensors
Replaced the ABS sensor on the master cylinder (not sure about this one - haven't seen it myself).
Checked ECU plug/socket for moisture/corrosion.

I'm really not sure what's left. If you are not getting codes to say the ECU is not communicating with other modules (over CanBus) then it doesn't sound like a wiring fault, but that may not be prove-able without load testing the wiring to recreate the fault.
The warmer weather appears to have cleared the fault, so that points back at a wiring fault, e.g. moisture in the circuit. It will be interesting to see if the fault reappears in damp/wet weather again.
Sorry I can't be any more help, I'm not a mechanic or auto electrician, but yours is the first 5DF0/5DF1 fault I've read about that wasn't the pump or ECU.
 
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