Fuel Tank, Draining When Less Than 3/4 Full, AWD [CZCA, CZEA, CJSA, CJSC, CHHB, CJXA, CWLA, CZDA, CZPA, CXDA, DJHC, CZPB, Dada, DLRB, DJVA, DACB, DKTA, DKZA, DNUA, DPBE, DPCA, CZDE, CZDB, DNFG, DNFE, DNNA, DNPA, DSFE, DUNA, DRFA, DSFB, DXDB]
Special tools and workshop equipment required
- Wrench - Fuel Sending Unit:T10202
- Fuel Extractor:VAS 5190A
-- Drain the fuel tank. Refer to FUEL TANK, DRAINING .
-- Remove the right and left installation opening cover. Refer to INSTALLATION OPENING COVER, REMOVING AND INSTALLING .
-- Unlock and disconnect the connectors -1- and -2- from the sealing flange.
Vehicles with Parking Heater:
-- Release the connector -3- for the Metering Pump -V54- and disengage it from the sealing flange.
-- Release the connector -3- for the Metering Pump -V54- and remove it.
Continuation for All Vehicles:
-- Remove the Fuel Pump Control Module -J538-. Refer to Fuel Pump Control Module -J538-, REMOVING AND INSTALLING .
-- Remove the Fuel Pump Control Module -J538- together with the wiring harness and move to the side.
-- Remove the fuel line -1- from the sealing flange. Disconnect the connector couplings. Refer to CONNECTOR COUPLINGS, DISCONNECTING .
The fuel system is under pressure.
Risk of injury from fuel spraying out.
- Wear protective eyewear.
- Wear safety gloves.
- Reduce the pressure: place clean cloths around the connection point and carefully open the connection point.
-- Remove the fuel return line -2- from the sealing flange. Disconnect the connector couplings. Refer to CONNECTOR COUPLINGS, DISCONNECTING .
Vehicles with Parking Heater:
-- Remove the fuel line -3- to the Metering Pump -V54- for the parking heater on the sealing flange. Refer to PARKING/AUXILIARY HEATER FUEL LINE, REMOVING AND INSTALLING .
Continuation for All Vehicles:
-- Open the locking ring with Wrench - Fuel Sending Unit:T10202 .
-- Carefully lift the fuel delivery unit flange -3-.
-- Remove the seal -1- and slightly lift the fuel delivery unit flange again carefully.
-- Attach the ground wire of the Fuel Extractor Unit to a bare area on the body.
-- Insert the suction hose for the Fuel Extractor:VAS 5190A as deep as possible into the fuel tank.
-- Extract the fuel using the Fuel Extractor Unit:VAS 5190A .
-- Unlock and disconnect the connectors -2- from the sealing flange.
-- Unlock and disconnect the connector -1- from the sealing flange.
-- If equipped, release and disconnect the connector -3- on the sealing flange.
-- Unclip the connectors from the sealing flange mounts.
-- Open the locking ring with Wrench - Fuel Sending Unit:T10202 .
-- Carefully remove the sealing flange -3- on the left side together with the suction jet pump -1- a little from the fuel tank opening.
-- Insert the suction hose for the Fuel Extractor:VAS 5190A as deep as possible into the fuel tank.
-- Extract the fuel using the Fuel Extractor Unit:VAS 5190A .
If the fuel tank is only emptied:
-- Re-install the fuel delivery unit. Refer to FUEL DELIVERY UNIT/FUEL LEVEL SENSOR, REMOVING AND INSTALLING .
-- Reinstall the Fuel Level Sensor 2 -G169-. Refer to Fuel Level Sensor 2 -G169-, REMOVING AND INSTALLING .
Tightening Specifications
- Refer to OVERVIEW - FUEL DELIVERY UNIT/FUEL LEVEL SENSOR
- Refer to Fuel Level Sensor 2 -G169-, REMOVING AND INSTALLING
- Refer to the appropriate Service Information .