Engine code BBW: Installing

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Installation of fuel delivery unit is performed in reverse order. Note the following:

Fig 1: Fuel Delivery Unit Connectors, Outer Supply Line, & Return Hose

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Connect connectors -1-, -3- and -4- (outer supply line -3-, return hose -4-, center of fuel retainer).

NOTE: The supply and return hose connectors must audibly engage. Check for correct seat by tightening.

Turn fuel delivery unit -2- in bayonet joint to right onto limit stop.

Fig 2: Installing Fuel Delivery Unit Seal & Connector

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Install new seal -2- with bulge facing fuel tank.
Place connector -1- in direction of arrow against fuel gauge sender behind fuel supply unit.

NOTE: The working area of the float must not be reduced.

Fig 3: Installed Position Of Flange Of Fuel Delivery Unit

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Install locking device -3- so that arrow -A- is parallel to vehicle longitudinal axle and faces backward, -B-.
Tighten nuts -2- in a diagonal sequence.

Tightening torque: 7 Nm

Connect 4-pin connector -1-.
Adapt (match) engine control module to throttle valve control module. Refer to Adapting components and functions .
Generate readiness code again if DTC memory has been erased or engine control module was disconnected from permanent positive, refer to Adapting components and functions .