Is removing fuel tank in my '80 300d hard - PeachParts Mercedes-Benz Forum

300 · #1 10-03-2011, 05:37 PM

Getting the a feeling vent failed and tank imploded?

Stevo · #2 10-03-2011, 06:53 PM

Heres a little write up I have on the subject. Hope it helps.

Remove the first aid kit and box from hat tray in rear seats. 2 philips head screws. Pull the plastic first aid kit front up and towards the front. disconnect the sender wire and place out of the way.

Drain the fuel tank and plan on getting diesel on yourself.

Remove rubber hose from screen. The screen does not have to be removed at this time. Tape over the screen opening to prevent diesel from dripping in the trunk ( hymm how do I know)

Unbolt the 2 vent lines under the tank on the drivers side of the car, get more diesel on yourself.

Remove the trunk floor carpet and the wheel well plastic inserts

Protect the trunk floor with plastic, Diesel will drip out of the tank. Not alot

Unbolt the forward trunk wall. 4 bolts 2 on the rear seat hat tray and 2 on the floor.

Remove the vacuum reservior. 1 push pin assembly at the rear on the rear seat hat tray. Disconnect the vacuum line and move to the side.

Unbolt the 4 fuel tank mounting nuts, remember the large washers are on the top.

Remove the tank by moving the driverside towards the rear first and sliding the filler neck out of the body opening. spill more diesel on yourself or the trunk.

Remove the fuel screen and sending unit.

Clean with a high pressure washer or take it to a radiator shop to clean it.

I attached my shopvac hose to the filler neck and duct taped it tight. then I turned it on blow and allowed the tank to dry this way for 4 hours. Make sure the vent lines are empty of water. This may require rotating and moving the tank to get the lines to drain. I used a flashlight to see into the tank and it looked quite clean.

Before reinstalling the tank, blow out the supply and return line and change the filters.

300 · #3 10-03-2011, 10:32 PM

Thang q stevo.