View Full Version : Smart forfour fuel gauge error
maregiljr
20th October, 2015, 07:01 PM
Car fuel gauge is not working properly, I sometimes get 2 bubbles showing on a full tank of fuel, and it stays that way all day or longer, then goes to 3 or 4 bubbles, what gives here?
Anybody know this problem?
Dash ref. A454 54 32 11
Eprom 93C66
cdex
20th October, 2015, 07:02 PM
Recalibrate fuel pump with empty fuel tank
TapaTalk for Windows phone.
maregiljr
20th October, 2015, 08:44 PM
Ok
Tomorrow try this.
Thanks.
DaveJeff
5th December, 2015, 11:43 PM
Have seen this fault on three of the four smart forfour's i have repaired...re-solder both, problem solved
there are 2 resistors in parallel on the dash pcb... 32ohm surface mount. one of them has a dry joint.345261
kisslorand
8th December, 2015, 08:06 AM
If you are talking about those resistors labeled "331", they are 330 ohm, not 32. I couldn't find any 32ohm resistors in your picture.
Anyway, thanks for the tip, much appreciated.
DaveJeff
8th December, 2015, 03:05 PM
Yep, you are correct, 330 ohm. With the dry joint the fuel gauge would randomly jump to 2 or 3 bars.
cdex
8th December, 2015, 03:26 PM
usualy you have to reset with das.
empty fuel tank and reset to zero dash bars with das
Turboweasel
21st February, 2019, 01:21 PM
Have seen this fault on three of the four smart forfour's i have repaired...re-solder both, problem solved
there are 2 resistors in parallel on the dash pcb... 32ohm surface mount. one of them has a dry joint.345261
Old thread but jist what i need! trying to figure out how to view the picture as it would be helpful!
plays
16th May, 2019, 04:28 PM
thanks a lot for the problem solved
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