So today I spent all day wandering around Preston waiting for VW to diagnose the engine fault and by 17:30 they finally had an answer. The problem is a broken wire, or wires, within the engine wiring harness and I have been advised that the whole thing should be replaced. Unfortunately, wiring is considered a perishable item and is not covered under my "All Component Warranty " so I'm looking at ~£350 to get that done. Has anyone had similar work done with our without warranty and does that cost seem fair?
Also was there a recall on the wiring harness or just the injectors, they have been done btw.
The car obviously need to go back in again and this time they have requested it for at least a couple of days, partly to get the wiring done but also because VW are requesting further evidence on the turbo including detailed photographs of the wear in question. The engineer informed me that he doesn't doubt the turbo needs replacing and that the siren noise is caused by movement in the balance bar, whether directly or by consequence I'm not actually sure, but VW want to be sure I guess so it has to be done.
