What it is
This is the OEM exhaust flapper valve (also called a throttle valve) used on VW/Audi common-rail 2.0L TDI engines. It regulates exhaust backpressure as part of the EGR system.
Part numbers
Primary: 1K0253691D. Alternate/superseded numbers for the same part: 1K0253691J, 1K0253691F, 1K0253691G.
What else is needed for installation
This valve does not include everything needed for a complete replacement. Sold separately:
Fitment
2009–2014 VW Jetta, Jetta Sportwagen, Golf, Passat, and Audi A3, all with CJAA/CBEA 2.0L TDI engines.
Availability
Call to confirm current availability before ordering — this item is not guaranteed in-stock.
Common questions
Do I need to buy anything else to install this? Yes — the clamp (1K0253725B) and 2 gaskets (1K0253115AE) are required for installation and are sold as separate line items, not included with the valve.
Are there other part numbers for this same valve? Yes — 1K0253691J, 1K0253691F, and 1K0253691G are alternate numbers for the same part, likely reflecting running production changes.