Checking tire pressure monitor battery - AP40.15-P-4056M

MODEL 220.175 /176 /178 with CODE (Z04) Light armoring with CODE (475) Tire pressure monitor (Beru) 

MODEL 220.175 /176 /178 with CODE (Z07) Top protection with CODE (475) Tire pressure monitor (Beru) 

	Check
1	Connect STAR DIAGNOSIS
	Connect STAR DIAGNOSIS and read out fault memory		AD00.00-P-2000-04A
		STAR DIAGNOSIS diagnosis system	*WH58.30-Z-1048-13A
2	Check TPM charge level	The check takes place under the menu item TPM → actual values → condition of wheel electronics units. The remaining life of the batteries is displayed for the respective wheel. The remaining life of the battery cell in the pressure sensor of the respective wheel is calculated by the TPM [RDK] control unit (N88) and specified in months.
3.1	Replace wheel sensor	Only if the remaining life is less than the time interval to the next service or wheel change, must the respective wheel sensor be replaced after consultation with the customer.
	Remove/install wheel sensor		AR40.15-P-0080A
4	Read out fault memory and erase	Faults stored due to cables being disconnected for assembly/testing operations or due to a simulation, must be processed and erased from the fault memories after work is completed.
	Connect STAR DIAGNOSIS and read out fault memory		AD00.00-P-2000-04A
		STAR DIAGNOSIS diagnosis system	*WH58.30-Z-1048-13A