Date registered: Sep 2007
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MB 1985 300TD Wagon Fuel Expansion Tank bad again!
Re: MB 1985 300TD Wagon Fuel Expansion Tank bad again!
The title says it all. I replaced it 18,074 miles ago. This is the little plastic tank above the spare tire in the back of the MB 300TD wagon. I believe its purpose is to give your fuel some place to go if you fill up the main tank with Diesel and on a warm day the fuel expands. Saw a puddle of fuel under the spare tire area so I investigated. I removed the tank thinking the hoses had gone bad. The tank was cracked in two places. Looked like stress fractures. The tank was well secured when I removed it BTW.
I went to the local Mercedes and spoke to a mechanic. He said he does not replace them very often and to his knowledge this part is not prone to failure.
The tank is plastic...I run B100 so I doubt the Bio is eating the tank.
Has anyone had similar issues or is this an isolated incident.
$147.34 for a new tank...