Seat Toledo CLNA Injectors

Seat Toledo CLNA Overview

The Seat Toledo with the CLNA 1.6L TDI engine was produced between 2012 and 2015. This vehicle uses Siemens VDO common rail diesel injectors (primary part number A2C9626040080) operating at fuel pressures up to 2000 bar. The CLNA engine in the Seat Toledo produces 66 kW (90 PS) and 230 Nm of torque. When replacing injectors on the Seat Toledo CLNA, 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 Seat Toledo

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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 Seat Toledo

Other CLNA Vehicles

Related Pages

Siemens VDO 1.6L TDI — browse compatible engines, vehicles, and injectors