The Bosch 0445110476 is the common and correct injector part number for the Audi A3 1.6 TDI models produced between 2012 and 2015.
Here are the specific details regarding this injector to ensure you have the right part:
Vehicle Fitment
This injector is designed for the Audi A3 (8V chassis) equipped with the 1.6 TDI engine.
Engine Codes: It is typically fitted to engines with codes CLHA, CLHB, CXMA, or DBKA.
Model Years: 2012, 2013, 2014, 2015.
Technical Details
Type: Solenoid Valve Injector (Common Rail Diesel).
Pressure: Up to 1600 bar (approx. 23,200 psi).
Nozzle Design: It features a specific spray pattern designed for the 1.6 TDI combustion chamber.
Critical Replacement Advice
If you are replacing these, please keep the following in mind:
Injector Coding (Programming): These injectors have an IQ (Quantity Adjustment) code or a correction value printed on them (usually a 4-5 digit number or a barcode). When installing a new injector, this code must be programmed into the Engine Control Unit (ECU) using diagnostic software (like VCDS or ODIS). Failure to do so will result in rough idling, excessive vibration, and poor fuel economy because the ECU won't know the exact fuel delivery tolerance of that specific injector.
Replacement Bolts: The high-pressure retaining clamp bolts are typically stretch bolts. They must be replaced with new ones and torqued to the manufacturer's specification (usually a specific angle torque procedure).
Seal Kit: Always use a new injector seal kit (copper washer and Teflon seal) specifically designed for this injector. The Teflon seal requires a special tool or a very careful "pinch" method to install without damaging it.
