Thanks for the video. In most cases according to my Mercedes mechanic it is the passenger side that leaks. I fixed mine several years ago and now I smell gas again. I bet it is the driver side this time. You got to love Mercedes and their plastic parts that eventually fail. That is their way of making big money off you. Luckily I have a Mercedes mechanic in the family. :)
Both my 2011 "road trip car" and my 2012 "project car" had serious leaks on the passenger side, but for different reasons (the 2011 electrical feed-through plug was leaking, the other one had the more common "case crack"). On the 2012 there was also a very slight crack on the "cap" on the driver's side. Took me a while to figure out why the replacement parts all looked wrong - both my cars are PZEV spec (option 917) vehicles, which don't have the (very different looking) sending unit showing, but have a fuel filter on the driver's side. From the top, it looks exactly like the passenger side cap, but with a fuel pressure unit sticking through the center of the cap. Anyway, I just sanded down the cracked area, scrubbed it with acetone, and slopped some very thin epoxy on top to see if that will keep it from leaking (it had what appeared to be only a tiny leak, but... it's a gas leak). I may end up having to replace that eventually, but wanted to see if epoxy might be a "real fix".
@@russgeer9450 it was the passenger side. I agree with your mechanic that it usually is the passenger side that fails. On the PZEV vehicles, the cap on the driver's side is pretty much the same, so it is also prone to leaking the same way.
Thanks for the video. In most cases according to my Mercedes mechanic it is the passenger side that leaks. I fixed mine several years ago and now I smell gas again. I bet it is the driver side this time. You got to love Mercedes and their plastic parts that eventually fail. That is their way of making big money off you. Luckily I have a Mercedes mechanic in the family. :)
Both my 2011 "road trip car" and my 2012 "project car" had serious leaks on the passenger side, but for different reasons (the 2011 electrical feed-through plug was leaking, the other one had the more common "case crack"). On the 2012 there was also a very slight crack on the "cap" on the driver's side. Took me a while to figure out why the replacement parts all looked wrong - both my cars are PZEV spec (option 917) vehicles, which don't have the (very different looking) sending unit showing, but have a fuel filter on the driver's side. From the top, it looks exactly like the passenger side cap, but with a fuel pressure unit sticking through the center of the cap. Anyway, I just sanded down the cracked area, scrubbed it with acetone, and slopped some very thin epoxy on top to see if that will keep it from leaking (it had what appeared to be only a tiny leak, but... it's a gas leak). I may end up having to replace that eventually, but wanted to see if epoxy might be a "real fix".
Thank you for making this video!!
You're welcome!
Great video.
Thanks!
Is this the driver side or passenger side that you are replacing?
@@russgeer9450 it was the passenger side. I agree with your mechanic that it usually is the passenger side that fails. On the PZEV vehicles, the cap on the driver's side is pretty much the same, so it is also prone to leaking the same way.