Fuel gauge shows empty petrol tank.But really it is full. Where is the problem?

Asked by Feb 27, 2012 at 08:44 PM about the Audi A4 Avant

Question type: Maintenance & Repair

2 Answers

90

does it i have a digital display or is it a Variable resistor, it really common for it to happen on the Variable resistor types gauges because it will have scratched the soft metal make the gauge not Register the reading, i wouldn't have a clue as to how much to replace but i would also look at the sender unit in the fuel pump to make sure it moves up and down. i hope this helps.

405

Mathew is on the right track, but there's also the old float system. if the float is jammed or stuck in the down position (which isn't uncommon if you've ran the car out of gas prior to this happening. That little tiny float type device is connected electronically to the fuel level indicator relay which is what receives the signal from the tank and adjusts the analogue or digital display on your dash.

Your Answer

Audi A4 Avant Experts

  • #1
    aymantn
    Reputation
    120
  • #2
    300SDLGUY
    Reputation
    80
  • #3
    Tom Demyan
    Reputation
    50
View All

Related Models For Sale

Used Audi A4
308 Great Deals out of 10,766 listings starting at $900
Used Audi A6
137 Great Deals out of 6,663 listings starting at $1,700
Used Audi A4 Allroad
651 listings starting at $45,318
Used Audi S4
54 Great Deals out of 1,747 listings starting at $4,450
Used Audi A3
70 Great Deals out of 4,664 listings starting at $2,500
Used Audi Allroad
26 Great Deals out of 463 listings starting at $14,995
Used BMW 3 Series
1,034 Great Deals out of 31,363 listings starting at $795
Used Audi S4 Avant
12 listings
Used Audi A5
107 Great Deals out of 5,015 listings starting at $7,490
Used Audi Q5
163 Great Deals out of 7,521 listings starting at $8,598
Used Audi A5 Sportback
810 listings starting at $42,649
Used BMW 5 Series
487 Great Deals out of 16,515 listings starting at $1,995
Used Audi A3 Sportback
200 listings starting at $27,888
Used Audi A8
46 Great Deals out of 2,024 listings starting at $2,750
Used Subaru Outback
372 Great Deals out of 35,618 listings starting at $1,900

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.