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Old 03-01-2001, 01:13 PM
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Crowe Crowe is offline
Benz Enthusiast
Join Date: Apr 2000
Location: Atlanta, GA
Posts: 366
Have the same car

My 300E does the same thing. I think this is normal since the fuel system is under pressure. My Jeep Cherokee would also make a hissing sound when the gas cap was removed. I slowly turn the cap when opening to let the pressure release gradually.
  • 2001 E320
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