Citroen C4 Picasso 6DRHRH Injectors

Citroen C4 Picasso 6DRHRH Overview

The Citroen C4 Picasso with the 6DRHRH PSA 2.0 HDi engine was produced between 2007 and 2013. This vehicle uses Siemens VDO / Continental common rail diesel injectors (primary part number A2C59511603) operating at fuel pressures up to 2000 bar. The 6DRHRH engine in the Citroen C4 Picasso produces and of torque. When replacing injectors on the Citroen C4 Picasso 6DRHRH, 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 Citroen C4 Picasso

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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 Citroen C4 Picasso

Other 6DRHRH Vehicles

Related Pages

Siemens VDO / Continental PSA 2.0 HDi — browse compatible engines, vehicles, and injectors