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Seat Leon CBAA Injectors

2.0L TDI CR (EA189) | 2008–2013

Engine Code

CBAA

Engine Size

2.0L TDI CR (EA189)

Production

2008–2013

Seat Leon CBAA Overview

The Seat Leon with the CBAA 2.0L TDI CR (EA189) engine was produced between 2008 and 2013. This vehicle uses Bosch common rail diesel injectors (primary part number 0445116030) operating at fuel pressures up to 2000 bar. The CBAA engine in the Seat Leon produces and of torque. When replacing injectors on the Seat Leon CBAA, always use new copper sealing washers and torque to manufacturer specifications. Each injector should be coded to the ECU after fitting.

Compatible Injectors

Bosch 0445116030

0445116030 | 0445116029 | 0445116004 | 0445116005 | 0986435360

£80 inc. VAT

View injector

Common Injector Problems in Seat Leon

  • 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.
  • 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.
  • Poor fuel economy — A worn or leaking injector delivers incorrect fuel quantities, reducing efficiency by 10–20% in severe cases.
  • Engine misfire under load — Intermittent misfires during acceleration suggest one or more injectors are failing to deliver the correct fuel pressure.
  • 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 Leon

Other CBAA Vehicles

Related Pages

Bosch 2.0L TDI CR (EA189) — browse compatible engines, vehicles, and injectors