Indirect Measuring System, Tire Pressure Monitoring System

TPMS indirect measuring. There are no wheel electronics installed inside the wheel. With the help of the ABS sensors, the TPMS compares the rolling circumference of the individual wheels.

The system must be reprogrammed after every wheel mounting, regardless of whether it is at the same position or it is for a different wheel.

These statements refer to legal requirements in the European Union. No claims are made as to their completeness.

General Information

The tire pressure monitoring system is included in the software in the ABS Control Module -J104-. The system will recognize a slow and gradual decrease in tire pressure on a wheel. The DTC memory entries for tire pressure monitoring system are stored in the ABS Control Module -J104-. With the help of the ABS speed sensor, the TPMS compares the speed and rolling circumference of the individuals tires.

After the following work and/or changes and with the ignition switched on, the Tire Pressure Monitoring Display Button -E492- must be pressed until the confirmation chime sounds:

Change in the tire pressures
A change in one or more tires
Changing a tire, for example, from front to rear
Removing or installing one or multiple tires

If a tire has changed in circumference, the Tire Pressure Monitoring Display Indicator Lamp -K220- in the instrument cluster will turn on. Rolling circumference of a tire may change due to:

Insufficient tire pressure
Structural damage on tires
Vehicle is loaded heavily on one side
High load on one axle, when towing trailer for example
When snow chains are used
Spare wheel is mounted
One wheel is replaced

NOTE:

Depending on the vehicle the basic setting is performed in different ways.

Make sure to pay attention to the owner's manual of the vehicle