4x4 abs ebv dsc failure

[stehay123]

Hi can anybody help brought a x5 3.0d but has 4x4 dsc abs ebv failure the previous owner changed the abs pumpand module but never coded it to the car I have the old pump but don't know where to started the brake pedal also feels spongy any help I'd appreciate it

[Greydog]

Morning Steven

Welcome to the Forum

If you have the original pump and module I would send it to ECU Testing (Derby/Nottingham area) if it is repairable it won't need coding when it goes back on. Brake bleeding is a straight forward procedure I always start at the nearside rear (furthest from the master cylinder) I use a vacuum pump bleeding kit (mine is old but they are about £20 or so) to pull fluid through. Make sure the Master cylinder is above Min at all times, once clear no bubbles or murky fluid lock it off and move to the offside rear and repeat. Then nearside front and finally offside front make sure you are using the correct brake fluid and as said never let the master cylinder drop below the Min mark. Now the only tricky bit is you will need the help of someone who has a BMW capable Diagnostic tool if you don't have your own to activate the ABS unit, job done.

If the original can't be repaired the next point to check is "the unit that is fitted is it the correct one for your car" is/was it New or purchased second hand?  check the part number of both the Pump and Controller carefully if they are the same as the OEM part then it should have been plug and play. If the unit was (a) Second hand is it faulty? (b) If it is an incorrect part then you will struggle to get it to work. However if it does need coding then again you will need the help of someone who has a Diagnostic program that is capable of doing it

Hope this Helps

Dave