, swapped to the Focus...loads of them about...cheap to repair right? First thing that goes, diesel pump...£1,100 to fix! I swore...alot

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Which version of diesel focus did you have? TDDi or TDCi?
I know the pumps on the TDDi are a weak point. Most diesel engines with those electronic bosch VP-series pumps are prone to pump failure - the TDDi Ford engine (used in Fiesta, Focus & Transit Connect), The 1.7DTi engine used in Vauxhalls (Astras, Corsa, Combo, Vectra), certain Audi TDi engines, and more I am sure.
Doubly sickening is that it's usually a failed sensor inside the pump that kills them, a cheap little bit to replace you would think. But no, it comes as part of the brain of the pump, 100s of pounds
When the pump went on mine (at 198,000 miles!), I got a recon "virgin" pump from a Bosch fuel specialist, cost me £450 (trade price). I then spent more buying parts to fit it - new oil seals, injector pipes, timing belt and pulleys, fresh fuel filter. I'm a mechanic, so did the work myself which no doubt saved some money. Had to buy special long torx sockets to undo the pump, and bought a timing pin set for doing the timing belt. Probably cost me £750-ish all-in to change my pump, thats trade prices and not including labour!
The pump has been the only thing on my Focus that broke and left me stranded. in 8 years/82,000 miles I am pretty happy with that

Yes, its had other problems, but mostly wear and tear...