Bleeding fuel system

Special tools and workshop equipment required

• Remote control for V.A.G 1348 - V.A.G 1348/3A-
• Adapter line - V.A.G 1348/3-2-
• Diesel extractor - VAS 5226-
• Adapters - V.A.G 1318/20-
• Adapters - V.A.G 1318/20-1-

Conditions

• Fuses must be OK.
• Battery voltage must be at least 11.5 V.
• Fuel pump relay must be OK.

Sequence of operations

• Remove fuse holder cover.

• Pull the fuse for the fuel pump out of the fuse holder. Fuse assignment ⇒ Current flow diagrams, Electrical fault finding and Fitting locations
• Connect remote control for V.A.G 1348 - V.A.G 1348/3A- with adapter cable - V.A.G 1348/3-2- to right contact of fuel pump and battery positive (+).

• Remove cover -arrow- from breather valve.

• Screw adapter -V.A.G 1318/20-1- onto adapter - V.A.G 1318/20-.
• Turn valve (on T-piece) anti-clockwise until it is entirely open.

• Screw adapter -V.A.G 1318/20- onto the bleed valve (handtight).
• Connect hose from diesel extractor -VAS 5226- as illustrated.
• Turn valve on T-piece clockwise into bleed valve to stop.
• Check adapter and hose connections for leaks.
• Operate remote control for V.A.G 1348 - V.A.G 1348/3A- until fuel flows free of air bubbles from breather valve.
• Turn valve (on T-piece) anti-clockwise until it is entirely open again.
• Clamp off hose from diesel extractor -VAS 5226- (e.g. using hose clamps up to Ø 25 mm - 3094- ) and pull it off adapter - V.A.G 1318/20-1-.
• Unscrew adapter -V.A.G 1318/20- from bleeder valve.