Hi guys,

Having some trouble with my R36. Recently completely lost AWD function. Car has just been repaired by dealer, with replacement of an apparently faulty Haldex pump. However, I am still getting intermittent failure of the AWD system, confirmed by the dealer when I took it back the following day and a scan revealed a logged intermittent failure of the 1-day-old new pump (apparently the initial scan prior to the repair showed the old pump to be in full-time failure). They're not sure what's going on and I'm taking the car back to them for a more detailed assessment shortly.

Was wondering if anyone might have some ideas what would be the most likely cause of these issues? Most useful info I've gathered from here and other googling usually suggest that replacement of the Haldex pump is a definitive fix. I'm hoping it's not the Haldex clutch pack / rear diff itself. The car is a MY10.

If anyone's wondering.... it's very obvious when you no longer have AWD in an R36, even at normal driving pace in the dry with decent tyres.
Thanks everyone!