LI4015P073743

Service Bulletin Details

Public Details for: LI4015P073743

Tire pressure sensors.


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Tire Pressure Sensors (TPMS) Cannot Be Manually Taught-In Using DAS
Topic number
LI40.15-P-073743
Version
1
Function group
40.15 - Tire pressure/tire pressure monitoring
Date
10/20/21
Validity
BR220 (S-Class) and BR230 (SL) with code 475 (Tire
pressure monitoring system)
Reason for change
Complaint
Changing the sensor identification numbers (IDs) to a higher ID number range, the sensors can no longer be taught
in using manual entry of the sensor IDs in DAS. The wrong sensor IDs are displayed in the actual values of the TPM
[RDK] control unit N88.
Cause
Sensor ID numbers greater than 2147483647 cannot be processed by DAS.
Remedy
The known procedures (1. or 2.) can be used to teach in the sensors:
1.) Manually reducing and raising the air pressure to activate the sensors and manually teach in with DAS.
2.) Install sensors, reset system using instrument cluster and use automatic teach-in process during the journey. The
teach-in process during the journey may last longer than usual.
The sensor IDs displayed in the DAS (TPM [RDK] control unit N88) can be ignored.
Symptoms
Chassis/suspension > Wheels/tires > Tire pressure monitor TPM display > Display in yellow > Tire Pressure Monitoring Service Required
Chassis/suspension > Wheels/tires > Tire pressure monitor TPM display > Display in yellow > Tire pressure monitoring currently inactive
Chassis/suspension > Wheels/tires > Tire pressure monitor TPM display > Display in yellow > Tire press. monitor
temporarily unavailable
Chassis/suspension > Wheels/tires > Tire pressure monitor TPM display > Display in yellow > Tire press. monitor inoperative No wheel sensors
Chassis/suspension > Wheels/tires > Tire pressure monitor TPM display > Display in yellow > Tire press. monitor inoperative
20.10.2021 15:02:38
© Copyright Mercedes-Benz AG
JKANTAR
Page 1 / 2
Chassis/suspension > Wheels/tires > Tire pressure monitor TPM display > Display in yellow > Tire pressure monitor
currently unavailable
Chassis/suspension > Wheels/tires > Tire pressure monitor TPM display > Display in yellow > Tire press. monitoring
No wheel sensors
Operation numbers/damage codes
Op. no.
Operation text
20.10.2021 15:02:38
© Copyright Mercedes-Benz AG
Time
JKANTAR
Damage
code
Note
Page 2 / 2


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