Liebherr Fault Code
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Check Engine Light / Water-In-Fuel Alarm
System
Fuel System
Symptom
Check Engine Light / Water-In-Fuel Alarm
Diagnosis & fix steps
LOGIC: PLD Controller / Water in Fuel Sensor Short to Ground or Cable Break.
ACTION: Drain the primary fuel filter water trap bowl immediately. Inspect sensor probe harness at plug B182 for shorting or water contamination.
Red Seal field insights
Injector Protection: Water passing high-pressure common rail (HPCR) fuel pumps on D946 drilling engines causes rapid plunger galling.
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