MK3 MK4 B5 B5.5 Purge Valve 0280142308

0280142308 is a Bosch Vapor Canister Purge Valve, an important component of the evaporative emission control system (EVAP). It regulates the flow of fuel vapors from the charcoal canister to the engine's intake manifold, where they are burned.

Volkswagen:
Jetta (Mk3): 1996–1999.
Jetta (Mk4): 1998–2005, depending on the engine.
EuroVan: 1997–2000, 2.8L V6.
Passat (B5/B5.5): 1995–2005, with various 1.8L and 2.8L engines.
Golf (Mk3 & Mk4): 1996–1999 and 1997–2003, with various engines.
Beetle: 1998–2001, 1.8L L4.
Audi:
A4 (B5): 1997–2001, 2.8L V6.
A4 Quattro (B5): 1998–2001, 2.8L V6.
A6 (C5): 1998–2001, 2.8L V6.
A6 Quattro (C5): 1998–2004, 2.8L V6 or 4.2L V8.
A8 Quattro (D2): 2000–2003, 4.2L V8.
S6: 2002–2003, 4.2L V8.
S8: 2001–2003, 4.2L V8

Common issues: A failing purge valve can cause engine performance problems, a "check engine" light, and related diagnostic trouble codes (DTCs) such as P0441. Symptoms often include rough idling, stalling, and poor fuel efficiency.
OE Part number: This Bosch part is a replacement for the original equipment (OE) part with the number 077133517C.
DIY friendly: Replacement of this part is typically a straightforward, do-it-yourself repair.