Remove/Install Front Axle Brake Disk - AR42.10-S-0230E

Model 447, 448

MODIFICATION NOTES

15.12.2015

Method extended

Operation step 12

Courtesy of MERCEDES-BENZ USA

	Risk of accident when commissioning the vehicle due to a lack of braking effect when the service brake is operated for the first time after repair work.	Before starting the engine, actuate brake pedal several times until pressure is built up and maintained in the brake system.	AS42.50-Z-0002-01A
	Risk of death caused by vehicle slipping or toppling off of the lifting platform.	Align vehicle between vehicle lift columns and position the four support plates at the vehicle lift support points specified by the vehicle manufacturer.	AS00.00-Z-0010-01A
Notice	Notes on self-locking nuts and bolts		AH00.00-P-0001-01KOA
Notice	Notes on repairs to brake system		AH42.00-P-0003-01A
	Remove/install
1	Remove each front wheel		AR40.10-S-1100E
2	Remove front axle brakepads	If the brake disks (5) are replaced. ↓ Replace brakepads	AR42.10-S-1610E
3	Remove screws (3)	Screw/bolt, front floating caliper carrier to steering knuckle	*BA42.10-Z-1002-03KOB
4	Detach brake caliper support (2) and strap down with brake caliper (1)	Do not release brake hose.
5	Remove screw (4)	Replace screw (4). Screw/bolt, brake disk to wheel hub	*BA42.10-Z-1001-11KOG
6	Remove brake disk (5)	Block the brake disk (5) if necessary and release by applying light hammer blows.
	Clean
7	Clean brake surfaces and contact surfaces of brake disk (5)
8	Clean flange of wheel hub
9	Apply light coating of grease to contact surface for centering brake disk (5) on wheel hub	Long-life grease	*BR00.45-Z-1001-06A
	Check
10	Check condition of brake disk (5)
Notice	Notes on evaluating brake disks	Replace brake disk (5) if necessary. Always replace brake disks (5) in pairs.	AH42.10-D-9406-07KOP
11	Install in the reverse order
	Check
12	Carry out brake test on the test stand
			AP42.00-S-4290E

FRONT AXLE BRAKE DISKS

Number	Designation		Model 447, 448
BA42.10-Z-1001-11KOG	Screw/bolt, brake disk to wheel hub	Nm	18

FRONT AXLE FLOATING CALIPER

Number	Designation		Model 447, 448
BA42.10-Z-1002-03KOB	Screw/bolt, front floating caliper carrier to steering knuckle	Nm	172

REPAIR MATERIALS

Number	Designation	Order number
BR00.45-Z-1001-06A	Long-life grease	A 000 989 63 51 11