2005 Mercedes Benz E500 03 E500 gas cap

Tiny
E500
  • MEMBER
  • 2005 MERCEDES BENZ E500
  • V8
  • 2WD
  • AUTOMATIC
  • 63,000 MILES
Anyone with an e-class mercedes ever heard of an error for replacing the gas cap? I am getting this message all of the time, even after replacing the gas cap. I have now started to notice it is being triggered by one of two things. Either the fuel level is right in between 1/2 and 3/4 or when the A/C is on. Strange but true. Anyone familiar?
Monday, May 18th, 2009 AT 1:07 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,176 POSTS
It sounds like there is an EVAP leak somewhere in the system. This is the system that prevents gas fumes from being lost into the atmosphere. What I recommend is having the EVAP system fogged. A mechanic will actuall force fog at a low pressure into the system. If there is a leak, the fog will come out and you will see where the problem is. Without having it fogged, you will go crazy tring to find the problem.
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Monday, May 18th, 2009 AT 7:04 PM

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