What a day!
Joseph definitely didn't like his jabs. Three of the buggers. Never seen him cry like that.
Went back to work and the steering went on the BMW and I nearly crashed into a roundabout, nursed it to the office and called the guys who I bought the car from. Who also replaced the power steering pump under warranty last month.
Initial diagnosis was the power steering/alternator belt had come off. Further diagnosis found that the water pump had packed up.
The good news is that the warranty will cover it. Bit of a result.
I guess it demonstrates one of the plus points of buying from a dealer.