Audi A3 8P CBAA Injectors

Audi A3 8P CBAA Overview

The Audi A3 8P 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 Audi A3 8P produces and of torque. When replacing injectors on the Audi A3 8P CBAA, 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 Audi A3 8P

• •
  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 Audi A3 8P

Other CBAA Vehicles

Related Pages

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