After the van broke down i got WMS to pick it up from Croxley.Was informed at each stage what was wrong and what my options were.Seems a belt had slipped and broken a few internal parts.
Repair came in at an eye watering £1500.
On the plus side,while replacing all the parts they fixed two minor oil leaks and diagnosed where my water leak was coming from(£5 fix).WMS are based down Riverside Rd WD19
http://www.wmscarandcommercial.co.uk/home