Jumped into my S3 this morning and set off for work, all was well when I parked it up last night after the drive home. For some reason the traction and ABS lights stayed on after I started the car, restarted the car and hey presto, they were gone. Then as I approached a junction and the speed dropped to a barely rolling speed i.e. about 1mph and when braking very gently the pedal shuddered as if the ABS was kicking in, the roads were bone dry and I was going so slowly it couldn't possibly have needed to.
I drove the car apprehensively the rest of the way in and it did exactly the same thing a couple more times but then not others under the same circumstances. Strangely at one stage when pulling away from traffic lights at a snails pace the traction control also kicked in. I'm sure the two are linked.
On the way home the other day I had to drive over some stones left over from roadworks as there was no way of avoiding them, one must have got stuck in the caliper or against the brake disc as I could hear it scratching for the next few miles, eventually it stopped so must have freed itself but I'm wondering if it may have damaged an ABS ring or something in the process? Or, is this a common problem and likely to be down to something else and this is just coincidence? I've driven the car for about 30 miles since the stone issue and it's been absolutely fine until this morning.
Any thoughts would, as always, be appreciated!