OBD Guide

P252F

Engine Oil Level Too High

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
~$56 (est.)

Symptoms

  • Increased oil consumption
  • Smoke from the exhaust pipe
  • Reduced engine power
  • Unusual noises when the engine is running
  • Oil pressure warning light comes on

Causes

  • Overfilling oil when changing
  • Fuel entering the oil system
  • Coolant getting into the oil
  • Oil level sensor malfunction
  • Clogged crankcase ventilation system

How to Fix

  1. Check the actual oil level with a dipstick
  2. Drain excess oil to normal level
  3. Check the oil for fuel or antifreeze impurities
  4. Check the serviceability of the oil level sensor
  5. Clean the crankcase ventilation system

Related codes

Error P252F by Vehicle Brand