Performing Basic Setting
Basic setting of Tire Pressure Monitoring Display Indicator Lamp -K220- should always only be performed, after tire inflation pressure values have first been corrected to the proper values.
If no pressure loss and no tire damage is detected after a tire pressure warning, the erroneous warning can be eliminated by a basic setting.
Tire Pressure Monitory System display is a component of ABS Control Module -J104- software.
ABS Control Module compares speed and rolling circumference of individual wheels with help of ABS sensors. If rolling circumference of a wheel changes, this is displayed via tire pressure control indicator. Rolling circumference of tire may be change if:
- Tire inflation pressure is too low.
- Tires have structural damage.
- Vehicle is loaded on one side.
- Wheels of one axle are loaded higher (e.g. when towing trailer or driving uphill and downhill).
- Snow chains are installed.
- Spare wheel is installed.
- One wheel per axle was replaced.
Tire Pressure Monitoring Display Indicator Lamp -K220- has a yellow indicator light in instrument cluster -arrow-.
- "BLINKING LIGHT" means that no "INITIAL BASIC SETTING" was performed yet.
- "STEADY LIGHT", in conjunction with a warning tone, indicates "WARNING", a loss of pressure has been recognized, check tire pressure, perform system basic setting.
Perform "INITIAL" Basic Setting
-- Switch ignition on.
-- At the same time press the ESP -1- button and the SET -2- button in the center console for longer than 2 seconds.
Press the ASR button if the vehicle does not have ESP.
Beginning of basic setting is confirm by a notifying tone.
Warning will no longer appear next time engine is switched on.
Perform Basic Setting
-- Switch ignition on.
-- Press the SET button -2- until a confirmation tone sounds after changing the tire pressures or after changing one or more tires.
Warning will no longer appear next time engine is switched on.