Powertrain, generic (extended)

P250E Engine Oil Level Sensor Circuit Intermittent/Erratic

Check engine lightUsually off
EmissionsNot relevant
Drive cycleNot required
Limp modeNo

P250E flags an oil level signal that drops out or jumps in an unrealistic way while the circuit otherwise looks intact. Typical sources are a loose terminal, a wire that breaks only under engine movement, or a sensor that loses its echo or heating cycle intermittently. Modern sensors deliver level and temperature as a timed or digital signal, so a single disturbed cycle can already be detected. Deutz's MD1 list assigns P250E to the oil level parameter SPN 98, and Ford lists P250E for the 2014 BOSS 302S module. Beyond that no maker publishes trigger criteria for this code. Unlike P250C and P250D, the value is not stuck at one end, and unlike P250B it is the signal itself that is unstable. The driver sees sporadic oil level messages.

Likely causes

Loose or oily terminal in the sensor connector
Wire breaking intermittently from engine movement
Sensor losing its measuring cycle sporadically

Symptoms

  • Oil level message appears and disappears
  • Jumping level display

Repair estimate

DifficultyMediumDIY possible
Parts and labour€20–400
Time0.3–2 h

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

oil level sensorsensor wiring

Related codes

P250AP250BP250CP250D

References: serdia.deutz.com, performanceparts.ford.com, hella.com.