If the engine has already grenaded — snapped chain, bent valves, scored liners — a kit on the old block is wasted money. If it is a cold-start rattle caught early on a 2.0 diesel, a chain job in the car (gearbox out) can still be cheaper than a used engine. Get that diagnosis in writing.
Used complete engine
Best when: You have a fitter, an honest donor, and you will replace wear items (on 2.0 diesels, the chain) while the engine is out.
For: Lowest cash outlay if the donor is documented. Fast if a local breaker has one.
Against: Unknown history. You inherit chain wear, injectors or turbo. Warranties are short or none.
Reconditioned engine (supply only)
Best when: You want new chain or bearings and inspection, and you still have a local fitter.
For: The weak points should have been addressed. Longer warranty than a breaker engine.
Against: “Recon” is unregulated wording. Ask what was actually replaced. Often into the £3,000s before labour on a 2.0 diesel; more on a six.
Supply-and-fit
Best when: The car will not move, or you do not want to coordinate a breaker, a courier and a garage.
For: One invoice. Recovery is often included. As of late August 2026, recon supply-and-fit for 2.0 diesels is often advertised from about £3,995.
Against: Confirm turbo, injectors, DPF, hybrid hardware and chain kit in writing. 3.0 jobs cost more.
Rebuild kit on your own engine
Best when: The block and liners (or bores) are sound, and failure was chain, oil pump or similar — diagnosed, not hoped.
For: You keep a known shell. Kits for chain, guides and tensioner are the usual add-on even on a used 2.0 diesel.
Against: If liners are scored or a piston is melted, a kit will not save it. Diagnosis first. This is not legal advice and not a repair manual.
Still shopping used? Follow the buyer’s guide questions and run the engine checker.