The selected Golf MK6 CAYC package is a complete EGR valve-and-cooler assembly, supplied with two gaskets. It is not a bare heat exchanger. Keep that distinction visible when comparing offers that use similar “EGR cooler” headings.
Check hatchback and wagon dates independently
| Listed CAYC 77 TDI application | Build scope |
|---|---|
| Hatchback | 08/2009–03/2013 |
| 77 TDI Trendline wagon | 02/2010–01/2014 |
The CAYC complete EGR valve-and-cooler assembly uses reference 03L131512CF. The listed 1.6L 77kW diesel applications include manual or DSG dual-clutch transmission within their stated scope.
Other diesel engines, earlier EGR layouts and later Golf generations require separate verification. Do not extend one body’s dates to the other from a broad MK6 title.
Compare the whole assembly and both control features
Check the black electrical valve housing and socket, vacuum actuator, mounting brackets, twin exhaust flanges and coolant-pipe layout. The assembly contains different visible control features; the round vacuum actuator should not be used to label the whole package as a bare vacuum valve.
Compare corresponding complete views before detail close-ups. If a pipe or bracket is obscured, ask for the actual missing view instead of borrowing geometry from another engine’s assembly.
Read the supplied contents
The selected offer includes the valve, cooler and two pictured gaskets. Pipes beyond the assembly, wiring, coolant and installation hardware are excluded. Have the installer determine any additional repair requirements.
This comparison does not identify the cause of an EGR complaint or prescribe a cleaning, testing or coding procedure. Send the VIN, engine code, build month, body, gearbox, original reference and accessible original-assembly photographs for a fitment check, then follow the vehicle-specific service information.
Prepared from application records and the linked product photographs. The featured workshop scene is an AI-generated editorial illustration. Information reviewed on 3 November 2026.