Engine Codes AEG, AVH, AZG, BEV

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Engine code BBW

Special tools, testers and auxiliary items required

Fig 1: Torque Wrench V.A.G. 1331 (5 To 50 Nm)

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Torque wrench (5 to 50 Nm) VAG 1331

Fig 2: Engine & Transmission Jack VAG 1383 A

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Engine and transmission jack VAG 1383 A

Removing

NOTE:

Observe safety precautions before starting work Refer to Safety precautions when working on fuel supply system under FUEL SUPPLY.
The fuel extraction unit VAS 5190 is recommended for emptying the fuel tank.

Check whether a coded radio is installed. If so, obtain anti-theft coding.
With ignition switched off disconnect battery Ground cable.
Open fuel flap.
Remove right rear wheelhousing liner: Refer to 66 EXTERIOR EQUIPMENT

Drain fuel tank and clean fuel filter neck and surrounding area.
Remove securing bolt on filler neck.
Fold rear seat bench forward.
Remove cover from under fuel tank.

Remove rear axle: Refer to 42 REAR SUSPENSION .

CAUTION:

The fuel system is under pressure! Before opening the system place a cloth around the connection. Then release the pressure by carefully loosening the connection.
Always wear eye protection and wear fuel-resistant gloves when disconnecting system connections.

Remove cover from fuel delivery unit.

Fig 3: Fuel Delivery Connector

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Disconnect 4- pin connector from flange - arrow -.

Fig 4: Cover & Bolts From Under Fuel Tank

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Remove cover from under fuel tank - arrow -

Fig 5: Fuel Supply Hose, Return Hose & Breather Hose

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Disconnect return hose - 2 - (blue), supply hose - 1 - (black) and breather hose - 3 - (white) at connecting point.

NOTE:

To disconnect, press buttons on hose couplings.

CAUTION:

The fuel system is under pressure! Before opening the system place a cloth around the connection. Then release the pressure by carefully loosening the connection.
Always wear eye protection and wear fuel-resistant gloves when disconnecting system connections.

Seal lines so that fuel system is not contaminated by dirt etc.
Remove tensioning strap. When doing this support fuel tank with engine and transmission jack VAG 1383 A.
Lower fuel tank.

Installing

Installation is performed in reverse order to removal, note the following:

Install breather and fuel hoses free of kinks.
Secure fuel hoses with spring-type clips
Ensure fuel hoses are tight.

NOTE:

Do not interchange supply and return hoses (return line blue or blue markings, supply line black)

NOTE:

After installing the fuel gauge sender, check that the supply return and breather lines are still clipped onto the fuel tank.

Adapt (match) engine control module to throttle valve control module. Refer to Adapting Components and Functions under Components, checking .
Generate readiness code again if DTC memory has been erased, Refer to Adapting Components and Functions under Components, checking .