Read Out Counter For Actuation Of Electric Parking Brake Via Diagnosis - AP42.20-S-4200E

Model 447, 448 

With Code B25 (Electric parking brake) 

With Code XM7 (MOPF II) 

Notice	General information on vehicles with high-voltage on-board electrical system and/or lithium-ion battery and/or gaseous-fuel drive system as well as personal protective equipment	Model 447 with engine 780	AH00.00-Z-0300-01A
	Update software, read out counter
1	Connect diagnostic system.
	Connect STAR DIAGNOSIS and read out fault memory	It is absolutely essential to precisely follow the operation steps as described in the vehicle diagnosis system.	AD00.00-S-2000-04E
2	Connect charging equipment.
	Maintaining on-board electrical system voltage when performing test and diagnosis work on vehicle	Ensure sufficient power supply to vehicle onboard electrical system throughout entire work procedure. Otherwise there may be damage to the control units if undervoltage occurs. Follow the operating instructions for the charger. Use the charger to ensure that an adequate power supply (min. 12.5 V) is provided for the onboard electrical system battery.	AR54.10-S-1127E
3	Read out operation counter of electric parking brake.	To do this, select the following menu items: Control units view → N30/4 - Electronic Stability Program (ESP®) → Electric parking brake → Actual values → Operation counter. It is absolutely essential to precisely follow the operation steps as described in the vehicle diagnosis system If the number of operations of the electric parking brake is > 95, 000 ↓ replace brake calipers on rear axle.
		After obtaining special order.	AR42.10-S-0080EA
4	Disconnect diagnostic system.
5	Disconnect charger from vehicle.
			AR54.10-S-1127E