TPMS diagnostic information – Mercedes-Benz S-Class 2000-2019

02.18.2019

Mercedes-Benz S-Class (2000-2019)

Mercedes Benz S-Class, 2000-2019

Type of TPMS system

  • Direct TPMS, sensors are installed in the wheel
  • All OE and aftermarket TPMS part numbers and service kit replacement options for the Mercedes S-Class can be found in the VT56, VT55, and VT36 TPMS Tools in “Service TPMS”.

Sensor Frequency

  • 315 MHz & 433 MHz

mercedes benz s class

Type of Relearn procedure

  • Auto relearn

Type of TPMS tool required for TPMS reset

Auto relearn procedure required for TPMS reset

  • Confirm TPMS sensors are properly installed
  • Adjust tire pressures to placard value
  • Activate sensors with TPMS activation toolt
  • Drive the vehicle for up to ten minutes

Troubleshooting tips

315 versus 433 TPMS sensors on the Mercedes S-Class

Since the year 2000, the Mercedes S-Class was manufactured with a direct TPMS system, therefore, sensors are installed in the wheel. Some years were manufactured with both 315 MHz and 433 MHz TPMS sensors, and some years were manufactured with only 433 MHz sensors. The VT56, VT55, VT36, and select Powered by ATEQ TPMS Tools can provide the frequency information per year in “Service TPMS” from the main menu. It is important to check the vehicle’s sensor frequency before replacing a sensor to ensure it is being replaced with the correct frequency.

There are differences in 315 and 433 MHz in TPMS sensors. 433 MHz sensors are mandated in Europe, therefore, all European vehicles must be installed with 433 MHz sensors. Some American and Asian vehicles are manufactured with 433 MHz sensors, however, most are manufactured with 315 MHz sensors.

The VT56 has the ability to indicate if the wrong sensor frequency has been installed in a wheel. For example, in 2009, the Mercedes S-Class is manufactured as a 315 MHz and 433 MHz frequencies within the same year. If a 315 MHz sensor is installed in a vehicle that is 433 MHz frequency, the incorrect sensor frequency that was installed will highlight in red.

Mercedes S Class TPMS

Using the VIN barcode scanner on the VT56 or checking the sensor information before installing sensors in the wheel will help eliminate the issue with which frequency is required. If there are issues activating the sensor with other tools, it may be because the wrong frequency was installed, or the wrong frequency may have been selected on the tool.

Troubleshooting tips when activating a TPMS sensor on a Mercedes-Benz

  • Try deflating the tire by 10 PSI. On some models for the Mercedes-Benz, manufacture years 2000-2006, TPMS sensors may not activate unless pressure drops at least 10 PSI.
  • Be sure to hold to tool above the valve stem on the sidewall of the tire for the most accurate signal reading. Note that some oversized aftermarket wheels may cause signal interference.

Mercedes Benz S Class TPMS reset

  • If there are issues activating the sensor, with an error “no signal detected”, the wrong frequency may have been selected on the tool, or the wrong sensor frequency was installed in the wheel.