E34/E28/E12 Discussion Discuss the E34 (1989 - 1996), E28 (1982 - 1988) and the E12 (1972 - 1981) 5 series models here.

Fuel gauge

Old 02-11-2010, 09:35 AM
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My e34 535's fuel gauge is showing full when full and a quickly goes to 1/4 tank.(within a day or 60 miles). Any ideas if its the sender? the guage?
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Old 02-11-2010, 04:17 PM
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Most likely the fuel tank sender.

The gauges / instruments usually work from a voltage stabilised supply in the instrument panel and if the temperature gauge is OK, then the fuel gauge is OK.
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Old 02-13-2010, 01:57 PM
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most likely the fuel sending unit it should be accessible through the trunk.
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