Work Procedure

Proceed As Follows:

-- Observe test conditions TEST CONDITIONS .

-- Remove Rear Bench seat. Refer to SEAT BENCH/SINGLE SEAT, REMOVING AND INSTALLING .

-- Remove Locking Flange Cover -arrows-.

Fig 1: Identifying Cover Bolts For Locking Flange

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-- Disconnect electrical connector -1- on locking flange.

Fig 2: Disconnect Connectors

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-- Connect Remote Control For V.A.G 1348:V.A.G 1348/3A  using adapter :V.A.G 1348/3-3  and cable from connector test set:V.A.G 1594C  to terminal -1-.

Fig 3: Checking Fuel Pressure

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-- 2. Tape adapter cable connector terminal :V.A.G 1348/3-3  with insulating tape -arrow- to prevent a short circuit.

-- Connect connector terminal -5- to chassis ground (GND) with an adapter cable from connector test kit:V.A.G 1594C  .

-- Route VAG 1348 Remote Control:V.A.G 1348/3A  toward front in engine compartment.

-- Unclip plenum chamber cover -2- and remove it.

Fig 4: Identifying Alarm Horn, Removal

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-- Release retainer -arrow A- and open cover -arrow B-.

Fig 5: Opening Terminal Box Cover

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-- Connect alligator clip to battery jump start terminal -U6- -A- in terminal 30 wire junction 2 -TV22- in plenum chamber.

Fig 6: Checking Fuel Pressure

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-- Remove cover from fuel filler tube.

-- Remove air duct -arrows-.

Fig 7: Identifying Air Duct

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-- Remove vacuum hose -3- from connection on air guide pipe.

Fig 8: Free Up Air Guide Pipe And Fuel Hose

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-- Remove air guide pipe by loosening hose clamp -4- and opening clips -arrows-.

-- Disconnect Vacuum Line -1-.

Fig 9: Disconnect Vacuum Line

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-- Remove air filter housing and, if applicable, disconnect electrical connector -2- on rear side at intake air switch-over valve -N335-.

-- Remove fuel supply line from high pressure pump -arrow-.

Fig 10: Identifying Fuel Supply Hose

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-- Connect fuel injection pressure gauge:V.A.G 1318  with adapters :V.A.G 1318/11  and :V.A.G 1318/15  in fuel line.

Fig 11: Bleeding Fuel System

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-- Push An Assisting Hose -arrow- Onto It And Hold It Into A Measuring Container.

-- Open Pressure Gauge Shut-Off Valve.

• The Lever Points In Direction Of Flow.

-- Generate Pressure In Fuel System By Pressing Switch On Remote Control And Slowly Closing Shut-Off Valve On Pressure Gauge.

• Specified value: 4 bar positive pressure.

-- From This Point On Do Not Move Position Of Shut-Off Tap.

-- Empty Measuring Container.

-- Press Remote Control Switch For 15 Seconds. 

-- Compare Quantity Of Fuel Delivered With Minimum Delivery Rate In Diagram (cm³ /15 s).

Fig 12: Compare Quantity Of Fuel Delivered With Minimum Delivery Rate In Diagram

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If Minimum Delivery Quantity Is Not Obtained, The Following Malfunctions May Be Present:

• Fuel Lines Pinched.
• Fuel Filter Clogged.
• Fuel Pump Faulty.

Assembly Is In Reverse Order Of Removal, Note The Following: 

-- Install Right Locking Flange Cover.

-- Install Rear Bench Seat. Refer to SEAT BENCH/SINGLE SEAT, REMOVING AND INSTALLING .

-- Install Air Filter Housing AIR FILTER HOUSING, REMOVING AND INSTALLING .