On two occasions recently my '97 S500 (W140) fuel gauge light began flashing, but the fuel level was barely below where the warning light would come on. There is nothing in the manual about this flashing, and I have seen nothing in the forum about why it would flash or whether it is even supposed to do so. Both times it happened when the car was sitting and idling. Once it stopped about a minute after I started driving and the other time I turned the car off and restarted and the light was just on steadily, with no flashing after that. Anyone know what the flashing means, or if it is even supposed to do this?

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David Foley
'97 S-500

I'd check it for codes. On newer cars it means a leak in the evap system or loose gas cap.

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1980 500SE/AMG Euro
1981 500SEL Euro
1982 380SEL
1983 300TD
1983 500SEC/AMG Euro
1984 500SEC
1984 300TD Euro
1986 190E 2.3-16
1986 190E 2.3
1987 300D
1997 C36 AMG
2003 C320T 4matic

past: 1969 280SE 4.5 | 1978 240D | 1978 300D | 1981 300SD | 1981 300SD | 1982 300CD | 1983 300CD | 1983 300SD | 1983 380SEC | 1984 300D | 1984 300D | 1984 300TD | 1984 500SEL | 1984 300SD | 1985 300D | 1986 300E | 1986 560SEL | 1986 560SEL/Carat | 1987 560SEC | 1991 300D 2.5 | 2006 R350