F**ked up my caliper???

[HomeMechanic]

Hi,

Was hoping for some help from you kind folk...

I was changing the rear discs and pads on the wife’s Golf MK7 which has the electronic parking brake - using VCDS (diagnostic software) I accidentally fully opened the brake pistons with one of the calipers off - think the piston was over-extended as a result, I saw a bit of brake fluid seepage, but managed to eventually push the piston back in using a piston compressor tool without having to dismantle.

Put the caliper back on but getting fault codes saying the EPB is getting “implausible readings” - it sounds like the motor is turning but nothing is happening. When I manually press the brake a few time I can see the piston working fine.

Any ideas ?

ETA: I have VCDS fault code “32813 parking brake maximum run time exceeded”

Thanks

 

[Cliff]

This thread on vortex may be useful: https://forums.vwvortex.com/showthr...rake-Job-failure-Help-please&highlight=brakes Not much in the way of solace, but useful...

 

[HomeMechanic]

Thanks Cliff, that is very useful - appreciate you posting.

Looks like it is new caliper time.

This part particularly explains the caliper bit really well... http://www.volkspage.net/technik/ssp/ssp/SSP_346.pdf