A2C9626040080 — Technical Research
Continental (Siemens VDO) solenoid common-rail injector for the VW Group 1.6 TDI engine (CAY-series) across VW, Audi, Seat and Skoda. VAG OE 03L130277B and 03L130277S; the Bosch counterpart for the same engine is 0445110369. Replacements are coded to the ECU with the injector correction value. Failures are driven by poor fuel filtration, contamination and back-leakage. Key symptoms: Rough idle / vibration; Hard starting; Loss of power / limp mode; Black smoke. Common failure modes: Internal wear / high back-leakage; Water-in-fuel corrosion; Nozzle coking.
Continental/Siemens VDO A2C9626040080 1.6 TDI Common Rail Injector (VW/Audi/Seat/Skoda)
Continental (Siemens VDO) solenoid common-rail injector for the VW Group 1.6 TDI engine (CAY-series) across VW, Audi, Seat and Skoda. VAG OE 03L130277B and 03L130277S; the Bosch counterpart for the same engine is 0445110369. Replacements are coded to the ECU with the injector correction value. Failures are driven by poor fuel filtration, contamination and back-leakage. Key symptoms: Rough idle / vibration; Hard starting; Loss of power / limp mode; Black smoke. Common failure modes: Internal wear / high back-leakage; Water-in-fuel corrosion; Nozzle coking.
A leaking injector unbalances cylinder fuelling on the 1.6 TDI.
Excess back-leakage drops cranking rail pressure.
Out-of-range delivery or rail-pressure deviation triggers derate.
Poor atomisation over-fuels the cylinder.
Cylinder-specific injector or fuel-metering fault codes.
- InstallationCode the injector correction value to the correct cylinder with VCDS/ODIS before road test.
- InstallationRenew the combustion seal and clamp hardware; torque to spec.
- MisdiagnosisConfirm fitment by the OE suffix (03L130277B/S) and engine code; the Bosch 0445110369 is the alternate for the same engine.
- WarningFix contamination (filter/water/debris) first; the 1.6 TDI is sensitive to fuel quality.
- TestingBench-test across delivery and back-leakage points; verify spray pattern before refit.
What is injector A2C9626040080?+
A Continental (Siemens VDO) solenoid common-rail diesel injector for the VW Group 1.6 TDI engine (CAY-series). VAG OE 03L130277B/03L130277S; the Bosch counterpart is 0445110369.
Which vehicles use A2C9626040080?+
VW Golf/Polo/Passat/Touran/Caddy, Audi A1/A3, Seat Ibiza/Leon and Skoda Fabia/Octavia/Superb 1.6 TDI.
Is it solenoid or piezo?+
It is a Continental/Siemens VDO solenoid common-rail injector.
Does A2C9626040080 need coding?+
Yes - code the injector correction value to the correct cylinder with VCDS/ODIS when fitting.
What are the OE part numbers?+
VAG 03L130277B and 03L130277S reference this injector; the Bosch alternate for the same engine is 0445110369.
Can I mix this with Bosch injectors?+
Do not mix manufacturers across a set - fit a matched set of the same part (Continental A2C9626040080 or Bosch 0445110369) and code each one.
What are the symptoms of failure?+
Rough idle, vibration, hard starting, black smoke, power loss/limp mode and an EML.
Why does my 1.6 TDI run rough?+
A worn or leaking injector unbalances fuelling; read live correction data and bench-test the weak cylinder.
What causes these injectors to fail?+
Poor fuel filtration, contamination and back-leakage wear - fix the cause first.
Does a remanufactured A2C9626040080 perform like new?+
A properly remanufactured injector is bench-tested and recalibrated on a Continental-capable tester, then coded on fitment.