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Our solutions are characterized by their simple interpretation. They include demonstrative images and are arranged in four fields: Error codes, symptom, cause and solution.

HIGHLIGHT NEWSLETTER

CAR

MERCEDES-BENZ CLASE M (W164)

SYSTEM

STEERING - ELECTRONIC MANAGEMENT

ERROR CODES

C1014 - Parametric steering solenoid valve (PML). Electrical failure.

C1501 - Parametric steering solenoid valve (PML). Short circuit.

C16EF - Parametric steering solenoid valve (PML). Check.

SYMPTOM

Fault codes recorded in the ESP control unit.
Operating error of the parametric steering.

CAUSE

Electrical defect of the parametric steering solenoid valve (PML).

SOLUTION

Repair procedure:
- Read the fault codes recorded in the ESP control unit using the diagnostic tool.
- Confirm that the fault codes are the same as the ones that appear in the field symptoms of this bulletin.
- Confirm that the symptoms that appear in the field symptoms of this bulletin are reproduced.
- Remove the steering box.
- Clean the steering box.
- Replace the parametric steering solenoid valve (PML). Tightening torque 5N/m (+/- 0,3Nm).
- Install the steering box.
- Check the sealing of the steering system.
- Clear the fault codes recorded in the ESP control unit using the diagnostic tool.
- Carry out a second fault code reading en the ESP control unit using the diagnostic tool and confirm that the fault codes that appear in the field symptoms are NOT recorded.

IMPORTANT! It is not necessary to replace the whole steering box in order to repair this failure.

See image 1:
A - Location of the parametric steering solenoid valve (PML).

See image 2:
A - Steering box.