Tire Pressure Monitoring System

Operation of tire pressure monitoring system

Function:
The tire pressure monitoring system is operated via the steering column lever or the operating unit in the center console.

The system monitors tire inflation pressures that have been set by the operator and stored as reference values.
- The inflation pressures must first be checked and corrected before being stored in the system.
- Start by checking and correcting inflation pressure of tires on the vehicle (including spare wheel) according to the figures listed on the sticker on the fuel filler flap.

Re-coding tire pressure monitor control unit J502
The new control unit must be coded if the tire pressure monitoring control module J502 is replaced. Proceed as follows:
- Connect vehicle diagnostic, testing and information system VAS 5051 A and select Function/component for function test.

Then
- "Suspension"
- "Tire pressure monitoring system"
- "01 - Self-diagnosis compatible systems"
- "J502 - tire pressure monitoring control module"
- "Tire pressure monitor functions"
- "J502 - Coding control module"

Wheel change / storing tire pressures via steering column lever (right-side)
To ensure reliable operation of the tire pressure monitoring system, the specified tire pressures must be stored correctly. The system will then automatically learn the new figures.

Proceed as follows:
- Switch on ignition.
- Press reset button on steering column lever.
- Using rocker switch, select the "Set" function in instrument cluster and confirm by pressing reset button.
- Using rocker switch, select "tire pressure" in instrument cluster and confirm by pressing reset button.
- Using rocker switch, select "Store tire pressures" or "Wheel change" in instrument cluster and confirm by pressing reset button.
The new tire pressures must be stored as reference values whenever inflation pressures are changed intentionally and after every wheel change.

Wheel change / storing tire pressures via operating unit in center console
To ensure reliable operation of the tire pressure monitoring system, the specified tire pressures must be stored correctly. The system will then automatically learn the new figures.
- Switch on ignition.
- Press menu button in center console.
- Using the rotary push button, select "Systems" from the CAR menu and confirm by pressing the button.
- Using the rotary push button, select "Set" from the CAR menu and confirm by pressing the button.
- Using the rotary push button, select "tire pressure" from the CAR menu and confirm by pressing the button.
- Using rotary push button, select "Store pressures" or "Wheel change" from the CAR menu and confirm by pressing the button.
The new tire pressures must be stored as reference values whenever the inflation pressures are changed intentionally and after every wheel change.