Hello everyone, I have recently started having trouble with my fuel cap (only 6 months old). It goes on ok with a nice click, but when I tried to remove it its stuck, it appears that the whole assembly is turning. I wrenched it off and went bought new cap on Friday. Same thing is happening with new cap. I did a search and saw that someone had a similiar but not exact issue. It looks like I am going to have to replace the whole tank. Any thoughts on cost, or other things I could try.

Thanks
Dennis

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Dennis
2006 E320 CDI Black/Black Leather. Nav, HTD Seats HK stereo 32000 miles.
2000 VW Passat 1.8t 300,000 miles as of Dec 09, 2009 original owner
1997 E300d Silver 300,000 miles As of Jan 05, 2010
3rd owner SOLD

Guessing the flanges of the filler neck have become tweaked inward and need to be pulled back out.

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Terry Allison
N. Calif. & Boca Chica, Panama

09' E320 Bluetec 77k (USA)
09' Hyundai Santa Fe Diesel 48k (S.A.)

Thanks I am hoping that can be repaired, a new tank I found out is about 720.00 plus labor!! The white part of the cap is definately turning when you turn cap counter clockwise to open, where it should be staying put and only the metal tabs should move back to the opening.. I am going to have to look into further, for the mean time I am going to pick up a cheap Stant or Gates to use. The MB Caps are getting expensive to just get torn up..

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Dennis
2006 E320 CDI Black/Black Leather. Nav, HTD Seats HK stereo 32000 miles.
2000 VW Passat 1.8t 300,000 miles as of Dec 09, 2009 original owner
1997 E300d Silver 300,000 miles As of Jan 05, 2010
3rd owner SOLD

Try to find a similar car ('96-99 E-class) and put them side by side so you can compare the filler necks. Something must have happened, as TMAllison says, to change the shape of the opening so that it is "eating" the caps. Once you can see the difference, you'll know what to fix.

Jeremy

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"Buster" in the '95

Our all-Diesel family
1996 E300D (W210) . .338,000 miles Wife's car
2005 E320 CDI . . 113,000 miles My car
Santa Rosa population 176,762 (2022)
Total. . . . . . . . . . . . 627,762
"Oh lord won't you buy me a Mercedes Benz."
-- Janis Joplin, October 1, 1970

Can you post a pic of your cap and filler neck? My '97 has a cap similar in fashion to the old MB's, 300D, etc.... Our '99 has more of a modern day twist and lock cap.

I will take a pic and post. Thanks..

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Dennis
2006 E320 CDI Black/Black Leather. Nav, HTD Seats HK stereo 32000 miles.
2000 VW Passat 1.8t 300,000 miles as of Dec 09, 2009 original owner
1997 E300d Silver 300,000 miles As of Jan 05, 2010
3rd owner SOLD