Misfire, poor running, smoke, hard starting? Diesel injectors fail in patterns. We test before we replace — and replace properly when you need it. Bosch, Delphi, Denso, Siemens.
Diesel injectors are expensive — replacing them on a guess is an expensive guess. We carry out cylinder balance tests, leak-off (back-leakage) testing, live data analysis and a physical inspection of the injectors before quoting. Often only one or two are at fault, not all four.
| Service | From |
|---|---|
| Diesel injector diagnostic / leak-off test | £59 |
| Single injector replacement | Quote on request |
| Full set replacement | Quote on request |
| Injector seat reconditioning where required | Quote on request |
Final price depends on engine, brand and parts.
Common rail piezo and solenoid injectors across VAG, BMW, Mercedes, Ford and Vauxhall.
Ford TDCi, Renault dCi, PSA HDi — including the 1.6 HDi.
Toyota, Mazda, Nissan, BMW and various Ford engines.
Various PSA and Ford engines.
Not always. We test each one. If only one is leaking back excessively, we can replace just the affected one. On high-mileage engines a full set is sometimes the smarter long-term choice — we'll tell you straight.
We fit OE or OE-equivalent only. Cheap pattern injectors often fail again within months — false economy.
Yes. Injector codes (IMA / ISA) are written into the ECU using manufacturer-level diagnostic tools. Without coding, the engine won't run smoothly.
Send your reg, mileage and any fault codes. We'll test before we quote.