Looking for some advice regarding my R (manual, 64 reg) , as its my first encounter with haldex, I also like to apologise if this is in the wrong section or if it's a common re-post.
I've not had any issues up until recently apart from a very rare appearance of the TCS light flashing over the odd speed bump or drain cover every now and again which I thought was normal, anyways the other day when I did a launch off a busy junction (acceleration in straight line) I got what appeared to be wheelspin/judder as if the rears weren't hooking up for a good few seconds (this is with the TCS in sport) I thought this was weird but im not one for launching as I know what a stock clutch is like on these so I tend not to do it but it was bugging me, so further along the journey I thought maybe it was cutting power to regain traction and that in the moment I just didn't notice so I turned the TCS off and tried again and the same thing happened. With TCS on I get a traction warning light flicking, that said i only did it once to test so it might not be a valid result but I suspect a haldex pump failure from what I've read online.
It's running Pilot Sport 4 tyres with approx 5mm all round and it was a dry day albeit a cold one but I'd been driving for about 30mins so I don't feel it was down to the tyres grip/temperature.
I've booked it into a dealer for a check and I've got a VW extended warranty which should cover it hopefully, but yeah I'm just a little concerned! And advice or guidance would be much appreciated.