Land Rover Discovery 4 X8Z Injectors

Land Rover Discovery 4 X8Z Overview

The Land Rover Discovery 4 with the X8Z 3.0L V6 Diesel engine was produced between 2009 and 2016. This vehicle uses Bosch common rail diesel injectors (primary part number 0445116064) operating at fuel pressures up to 2000 bar. The X8Z engine in the Land Rover Discovery 4 produces and of torque. When replacing injectors on the Land Rover Discovery 4 X8Z, always use new copper sealing washers and torque to manufacturer specifications. Each injector should be coded to the ECU after fitting.

Compatible Injectors

Common Injector Problems in Land Rover Discovery 4

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  Rough idle and engine vibration — Worn injector nozzles cause uneven fuel spray, leading to rough idle at low RPM. Most noticeable when the engine is cold.
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  Excessive exhaust smoke — Black or blue-grey smoke on acceleration indicates poor fuel atomisation. This is often caused by carbon buildup on the injector nozzle tip.
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  Poor fuel economy — A worn or leaking injector delivers incorrect fuel quantities, reducing efficiency by 10–20% in severe cases.
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  Engine misfire under load — Intermittent misfires during acceleration suggest one or more injectors are failing to deliver the correct fuel pressure.
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  Difficult cold starting — Degraded injector nozzles struggle to atomise fuel at lower cranking pressures, causing extended crank times in cold weather.

Other Engine Codes for Land Rover Discovery 4

Other X8Z Vehicles

Related Pages

Bosch 3.0L V6 Diesel — browse compatible engines, vehicles, and injectors