Red Fuel Cap Error message then check engine light but gas cap tight
05-31-2016, 03:12 PM
#1
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2007 Mercedes GL450
Red Fuel Cap Error message then check engine light but gas cap tight
3 days ago the red gas cap error message popped up. I had to stop at a store and checked gas cap and it was tight. I took it off and put it back on just to be sure. However, the check engine light came on when I restarted car. Its been over 10 starts and check engine light will not go away. Do I have to have it reset? What other causes could cause the message? Is the cap not sealing tightly maybe?
05-15-2018, 02:45 PM
#4
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I am getting the same thing: randomly the red gas cap light comes on, and check engine light stays on.
I bought a brand new gas cap but still getting the same problems.
Pulled codes: P0455, P0172
Would greatly appreciate any help.
I bought a brand new gas cap but still getting the same problems.
Pulled codes: P0455, P0172
Would greatly appreciate any help.
