Fuel leak hose

I just took a piece of the old fabric covered hose down to the local NAPA auto parts store here in the US. They matched it to a plastic hose that's fuel rated. It looks very similar to soft, clear vinyl water tubing, except it's a yellowish color. Replaced mine about 5 years ago and no leaks since. The std ones from the stealership all weaped after a few years. It's really amazing that MB can't just get a hose that doesn't leak, isn't it? Especially given that they charge many times what it will cost for the hose at NAPA.

On my car, the last piece is a short stub that has an end sealed off. For that, I put silicone caulk in about 1/2" of the end and it's worked fine. A better way might be to find an appropriate size plug.

I just changed it... it is 1/8" ID... $15 a feet at MB dealer. I am not sure if these MB hose are biodiesel grade... you need to ask...

Otherwise, Viton hose is the only one I know that are biodiesel compatible. and much cheaper.