Air hose that runs from the driver side of intake manifold to the brake booster on the firewall. A crack or break in this line can cause major vacuum problems and could possibly leave you stranded.

Manual trans only.

FITS: All Mk4 Golf/Jetta 1.8T AWW/AWP, From VIN # 1J-1-013 041 split is in model year 2001, For AWW & AWP engine codes only

Part # 1J0-612-041-ES / 1J0612041 ES / 1J0 612 041 ES / 1J0612041ES

Fitting Position: Throttle Valve At EGR Valve