Fuel Tank, Draining When More Than 3/4 Full
Special Tools And Workshop Equipment Required
- Fuel Extraction Unit:VAS5190
- Fuel Funnel:T40256 for vehicles with incorrect fuel protection.
-- Follow all safety precautions. Refer to SAFETY PRECAUTIONS .
-- Follow the guidelines for clean working conditions. Refer to PARKING/AUXILIARY HEATER AND FUEL SYSTEM CLEAN WORKING CONDITIONS .
-- Make a marking -arrow- on the hose -a- from the end of the suction hose.
-- Use duct tape.
| Rear Axle | Distance a in mm |
|---|---|
| Vehicles with multi-link rear axle | 945 mm |
| Vehicles with torsion beam rear axle | 1010 mm |
-- Open the fuel filler door unit -2-.
-- Clean the area around the fuel filler tube.
-- Remove the cover -1- on the fuel filler neck.
Attach the :VAS5190 Ground (GND) cable to an ungrounded area on the body.
Vehicles Without Misfueling Guard
-- Push the siphon hose on the :VAS5190 into the fuel tank until the marking made previously -arrow- seals with the filler tube -2-.
Vehicles With Misfueling Guard
-- Insert the :T40256 all the way into the fuel filler tube.
-- Slide the suction hose from the :VAS5190 far enough into the fuel tank so that it aligns with the marking -2- made earlier on the edge of the :T40256 .
-- If there is no :T40256 , the misfueling guard must be removed. Refer to MISFUELING GUARD, REMOVING AND INSTALLING .
On AWD vehicles a red chamber from the fuel tank is emptied.
Continuation For All Vehicles
-- Drain the fuel tank as much as possible through the filler tube.
There is a door -1- in the fuel tank at the bottom end of the fuel filler neck.
The check valve -1- must not be damaged by the suction hose from the :VAS5190 .
Only side the hose in as far as the marking that was made earlier -arrow-.
Do not use force to pull the extractor hose it if gets stuck on the check valve -1-.
In this case, remove the fuel delivery unit and manually hold the check valve open. When doing this, make sure the arm does not come in contact with the fuel.
-- Remove the extracting hose carefully.
When no more fuel can be extracted, the tank is emptied only enough for the sender flanges to be opened without danger.
Working on the fuel delivery unit or on the Fuel Level Sensor -G-. Refer to FUEL TANK, DRAINING WHEN LESS THAN .