I have had this TD since last Nov. and only now noticed a black plastic tank that sits behind the spare tire. There appears to be 3 cloth braided fuel hoses coming from the bottom of it. What is this? This can't be the "reserve" for the fuel tank can it? I can't see how it could be since it sits higher than the fuel tank it'self. Speaking of "reserve", if this isn't it, where exactly is it. I have always wondered, on every car they always list a fuel tank capacity and say that includes a reserve of xxxx.

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1999 MB SL500 (110,000 mi)
2004 Volvo V70 2.5T (220,000 mi)
2014 Tesla Model S 85 (136,000 mi)
MBCA member