Code No. P252F: Engine Oil Level Malfunction <EURO5>

The engine oil level may ascend if the fuel runs into the engine oil on the DPF regeneration.
The engine-ECU monitors the engine driving conditions to estimate the ascend of engine oil level.

Check Condition

Judgement Criterion

DIAGNOSIS PROCEDURE

Replace the engine oil, When the engine oil is replaced, initialise the learning value (Refer to GROUP 00 - Precautions before Service - Initialisation Procedure for Learning Value in Common Rail Engine ). After initialising the learning value, reconfirm diagnosis code.
Carry out the small injection quantity learning procedure (Refer to GROUP 00 - Precautions before Service - Small Injection Quantity Learning Procedure ).
Reconfirmation of diagnosis code.

	Replace the engine-ECU.

	Check end.