I had a warranty claim refused on my Water pump due to the fitment of Downpipes.
The plastic casing on the top of the waterpump had cracked and was apparently un repairable. They claimed that it cracked as a result of the engine not having been supported when the downpipes were fitted. I explained that the Subframe wasnt removed during the fitting, but they were plain arseholes (Specialist Cars, Tring).
I bought a replacement from BMMiniparts and went to a local independent in the end.
Car: 2010 Jaguar XFR (Cat-back exhaust)
Gone but not forgotten: Highly Modified E90 335i LCI M Sport Manual (circa 480BHP/500lb ft)