With Generic Scan Tool

Fuel System, Bleeding

Recommended special tools and equipment







- V.A.G 1318 Fuel Inj. Pressure Gauge-CIS K-Jetronic with V.A.G 1318/21 adapter







- V.A.G1598/31 test box







- VAS 5226 catch reservoir

Procedure







- Close shut-off valve on special tool V.A.G. 1318/21 by turning in "-" direction up to stop.

CAUTION:
- Work on the fuel system must only be performed when engine is cold.
- Fuel is under pressure. Before opening system, place rags around the connection area. Then release pressure by carefully loosening connection.







- Unthread sealing cap from bleeder connection -2- and connect V.A.G 1318/21 adapter instead.







- Connect V.A.G. 1318/21 adapter and VAS 5226 catch reservoir with assistance of V.A.G. 1318 pressure gauge.


WARNING: All connection areas must be secured.







- Open shut-off valve on special tool V.A.G. 1318/21 by turning in "+" direction.
- Switch ignition on.
- Fuel pump starts up briefly

Fuel system is bled when fuel exits into VAS 5226 catch reservoir without bubbles.
- Switch ignition off.

If the fuel pump does not operate, or fuel flows out on catch reservoir VAS 5226 continuously with bubbles:
- Connect test box to wiring harness of Engine Control Module (ECM). ECM is not connected.
- Bridge terminals 1 and 65 at test box using wires e.g. from V.A.G 1594 A adapter test kit.
- Switch ignition on.

Fuel system is bled when fuel exits into VAS 5226 catch reservoir without bubbles.
- Switch ignition off.

CAUTION: Fuel system is under pressure. Before opening system, place rags around the connection point. Then release pressure by carefully loosening connection.







- Close shut-off valve on special tool V.A.G. 1318/21 by turning in "-" direction up to stop.
- Remove V.A.G. 1318/21 adapter from bleeder connection.







- Thread on sealing cap to bleeder connection -2-.