Batch 36 - the breakdown.

Thursday 26th April 2018 and the National Express 509 service from Cardiff at 07:15 to London Victoria Coach Station breaks down along the M4 motorway Eastbound at Junction 20.

White fumes were pouring out of the right hand side of the engine bay, cause unknown.

The engine had not overheated as the engine coolant was to the max. line on the header tank. There were no fluids leaking onto the road and there was no smell of diesel fuel oil. So the cause of this breakdown was NOT a water, oil or fuel leak.

The Highways Agency pulled behind the coach and their officer was a kind and friendly man who ensured everything ran okay until the replacement coach arrived.