Fuel level sensor in the tank OPEL ZAFIRA 2002

OEM: 90560129 88457291-1

Disassembled car photo

Engine running

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What is this part and why does it matter?

The fuel tank level sensor measures the amount of fuel in the tank, sending that data to the dashboard fuel gauge.

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Signs of a faulty part

If you notice any of the following, the part likely needs replacement:

  • Inaccurate or fluctuating fuel gauge reading
  • Gauge stuck at empty or full regardless of actual fuel level
  • Low fuel warning light triggering incorrectly

Installation information

Usually accessed by removing the fuel pump assembly from the top of the tank — check the tank is low on fuel before starting work, for safety and to reduce spillage.

Frequently asked questions

This sensor typically uses a float and variable resistor — wear on the resistor track or a sticking float mechanism causes an inaccurate or erratic reading over time.

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