andyfanshawe wrote:enzed4 wrote:andyfanshawe wrote:
Hi enzed4. You have the classic symptoms of sticking brushes in the ABS motor.
Have a look here
https://youtu.be/CmCe98MZ-Yw
I've just done one successfully. Far cheaper than a refurbed unit.
One thing you can try.....give the black cylindrical motor casing a couple of Sharp taps with a hammer or something similar. I tap them with a socket extension! Then turn ignition on to see if the lights go out.
Andy
Thanks Andy, I have seen that video - looked it up in the hope it might point me in the right direction to repairing my own pump, but once he showed you need to cut the tabs holding the pump casing to remove it, I didn't think it was worth pursuing. I thought that might be the problem, and that such a simple fix was made near impossible by BMW's sealing of the unit
. I didn't think of giving it a few taps, like a stuck starter motor, but as long as I don't damage the housing (may need to exchange it or send it for repair somewhere) I might as well try.
Additionally, unplug the connector to the ABS module (pull the plastic clip up on the top and the connector will pop off) and the put it back by pushing it back down. Unplugging and plugging back in sometimes cleans the pins and gets it working. Worth a shot.
Andy.
Had already tried this a few days ago with no effect on fault (but thanks for the suggestion).
However, I took your advice about the 'taps' this morning, gave the casing a few sharp taps with a socket handle and a mallet handle wherever I could reach without damaging the hydraulic pipes around it. Took it for a drive and the fault lights have gone. Gave the ABS a good workout with some sudden stops, even did some sudden stops from higher speed (around 80km/h) while turning the steering wheel left and right (hopefully activating DSC - I did see the light flash on the the dash). Haven't been able to get the fault lights back. Really, REALLY hoping this might have knocked a stuck brush loose, but have heard others say their fault comes and goes, so I won't get too hopeful until it's been gone for some time.
Thanks again, Andy
no good .Don't hold out any hope as BMW diags indicate an internal failure and of course Dealers replace not repair
. Now every time I start the car I wait a few seconds for the dreaded 'bing' of doom accompanied by the Xmas tree dash lights. Fingers, toes and eyes crossed they don't return...
drove about 10 miles and decided to abort repair and get the MOT completed and then have repair at leisure
