Downloaded from www.Manualslib.com manuals search engine
20Fuel Supply System
Edition 08.96
Removing and installing fuel tank with attached parts and fuel filter
1 - Overflow hose
2 - O-ring
Replace
3 - Gravity valve To remove, unclip valve and lift up and out of filler neck
Inspect valve for blockage valve vertical: open valve tilted 45°: closed. 4 - Vent pipe
To activated charcoal filter page 20-12, item 5
5 - Cap Replace seal if damaged
6 - Tensioning ring
7 - Rubber bowl
Downloaded from www.Manualslib.com manuals search engine Fuel Supply System20
Edition 08.96
Test procedure
- Switch off ignition.
- Connect remote control V.A.G 1348/3A with
adapter cable V.A.G 1348/3-2 ⇒ page 20-8.
- Remove cap from the fuel filler neck.
Important! Fuel system is pressurised! Place cleaning ragsaround the connection point before opening the
system. Then, release pressure by carefullyloosening the connection point.
- Disconnect fuel return flow pipe -2- (press
release buttons).
- Connect auxiliary hose to adapter V.A.G 1318/17 and fit onto the fuel return flow pipe of the engine and hold in a measuring vessel.
- Operate remote control for 15 seconds (press button and hold).
- Compare quantity of fuel supplied with spe-
cification.
*)Minimum delivery cm3/15 s
**)Voltage at fuel pump when engine switched
off and pump running (about 2 V less than battery voltage).
