Fuel tank — design description (VW Transporter T3)

(1) Surge tank
(2) ventilation
(3) Fuel flow indicator sensor
(4) compaction
(5) fuel return line from fuel pump
(6) O-ring, replace, rub with graphite paste before replacing
(7) fuel tank
(8) protective rail
(9) filling pipe
(10) plug. If damaged, replace the seal
(11) filling elbow
(12) ventilation
(13) Float valve. Check that the valve is closed when turned 180 degrees.
(14) equalizing tank
(15) seal
(16) sealing ring, replace if damaged.
(17) to the fuel pump
(18) Air bleed plug, unscrew to drain
(19) upper part of fuel filter
(20) sealing ring, lubricate with diesel fuel before installing the filter
(21) fuel filter
(22) drain plug, unscrew to drain about 100 ml of liquid.