Tandem pump, removing and installing: Removing

WARNING: This page is about a different car, the 2006 Volkswagen Golf, 2005 Volkswagen Jetta, 2005 Volkswagen Golf, 2004 Volkswagen Jetta, and 2004 Volkswagen Golf. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Identifying V.A.G 1390 And V.A.G 1390/1

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Pull off supply hose - 1 - (white marking) and return hose - 2 - (blue marking) from fuel filter.
Connect hand vacuum pump V.A.G 1390 with bleed container V.A.G 1390/1 to return hose.
Operate hand vacuum pump until no more fuel comes out of return hose. Ensure that no fuel is drawn into hand vacuum pump.

Fig 2: Identifying Vacuum Hose, Supply Hose, And Return Hose

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Pull vacuum hose - 1 - from brake servo off tandem pump - 4 -.
Pull supply hose - 2 - (white marking) off tandem pump - 4 -.
Remove securing bolts - arrows -.
Remove tandem pump - 4 - from cylinder head.
Pull tandem pump - 4 - slightly upward, pull off return hose - 3 - (blue marking) and remove tandem pump - 4 -.