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1998 BMW 528I
2.8L I6 M52•RWD•AUTOMATIC•gas
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Repairs0Labor497Torque3173Fluid8DTC1210Battery1Maintenance0Recalls0
P1250moderate severityPowertrain

Fuel Level Sensor Signal 1 Open/Short

on 1998 BMW 528i 2.8L I6 M52 · RWD

What this code means

The DME detected an open or short circuit in fuel level sensor signal 1. The fuel level reading is unreliable, which can affect fuel injection calculations and range estimation.

Symptoms

  • Check Engine Light
  • Fuel gauge reading incorrectly
  • Fuel range display inaccurate
  • Possible engine running issues

Common causes

  • Faulty fuel level sensor (sender unit)
  • Damaged wiring to fuel level sensor
  • Corroded connector at fuel tank
  • Instrument cluster fault

Diagnostic steps

  1. Test fuel level sensor resistance range
  2. Inspect wiring from tank to DME
  3. Check connector at fuel pump module
  4. Verify signal at DME connector

Repair notes

Replace fuel level sensor or repair damaged wiring at the fuel tank.

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