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Home >> Mercedes Benz >> 2022 >> CLS450 >> Repair and Diagnosis >> Brakes >> Brakes Control Systems >> Brakes - Hydraulic & Mechanical System - 257 Chassis 1 Of 2 >> Testing & Repair >> Bleed Brake System - AR42.10-P-0010FR

Bleed Brake System - AR42.10-P-0010FR

Model 257 

Model 290 

G14548904Courtesy of MERCEDES-BENZ USA

Shown on model 257 

CAUTION Risk of poisoning  from swallowing Brake fluid. Risk of injury  from skin and eye contact with Brake fluid Only pour Brake fluid into suitable and appropriately marked containers. Wear protective clothing and eye protection when handling Brake fluid. AS42.50-Z-0001-01A 
Topical note  Notes on repairs to Brake system   AH42.00-P-0003-01A 
Topical note  Notes on handling, transport and storage of composite Brake disks   AH42.10-P-9406-12LF 
Topical note  Brake fluid notes   AH42.50-P-0001-01A 
Topical note  Notes on handling, transport and storage of   AH42.10-P-9406-13A 
  ceramic Brake disks    
  Notes on safety-relevant components   AH00.00-Z-0019-01A
REMOVING Remove     
1 Remove cover (1) above Brake fluid reservoir (2).    
2 Clean area around cap of Brake fluid reservoir (2). Assembly cleaner *BR00.45-Z-1028-04A 
3 Unscrew cap of Brake fluid reservoir (2).    
  Bleeding     
4 Fill Brake fluid reservoir (2) with new Brake fluid up to maximum mark.    
REFER TO CAPACITIES & SPECIFICATIONS Brake fluids (DOT 4 plus)   BB00.40-P-0331-00A
REFER TO CAPACITIES & SPECIFICATIONS General Brake fluid   BB00.40-P-0330-01A
5 Connect filling unit to Brake fluid reservoir (2).    
REFER TO SPECIAL TOOLS 000 588 01 82 00 Filling unit   WS25.00-P-0016B
REFER TO CAPACITIES & SPECIFICATIONS Brake fluids (DOT 4 plus)   BB00.40-P-0331-00A
REFER TO CAPACITIES & SPECIFICATIONS General Brake fluid   BB00.40-P-0330-01A
    IMPORTANT Observe manufacturer's operating instructions.  
6 Switch on filling unit.    
7 Raise vehicle.   AR00.60-P-1006A
8 Bleed the system.   AR42.10-P-0010-02FR 
REFER TO SPECIAL TOOLS 000 588 01 82 00 Filling unit   WS25.00-P-0016B
    TORQUE SPECIFICATION Model 290 Bleed screw at Brake caliper *BA42.10-P-1003-10BA 
    TORQUE SPECIFICATION Bleed screw to Brake caliper *BA42.10-P-1002-12W 
    TORQUE SPECIFICATION Model 257 Bleed screw at Brake caliper *BA42.10-P-1003-10X 
9 Switch off filling unit and disconnect from Brake fluid reservoir (2).    
10 Check Brake system for leaks.   AR42.10-P-0100-01FR 
11 Correct fluid level in Brake fluid reservoir (2).    
REFER TO MAINTENANCE     AP42.10-P-4210B
INSTALLING Install     
12 Seal Brake fluid reservoir (2) with cap.    
13 Install cover (1) over Brake fluid reservoir (2).    
14 Lower vehicle.   AR00.60-P-1006A
REAR AXLE BRAKE CALIPER

Number Designation Model 257 Model 290
BA42.10-P-1002-12W Bleed screw to Brake caliper Nm 14 14
FRONT AXLE BRAKE CALIPER

Number Designation Model 290
BA42.10-P-1003-10BA Bleed screw at Brake caliper Nm 14
FRONT AXLE BRAKE CALIPER

Number Designation Model 257 (except 257.361) Model 257.361
BA42.10-P-1003-10X Bleed screw at Brake caliper Nm 14 14
REPAIR MATERIALS

Number Designation Order number
BR00.45-Z-1028-04A Assembly cleaner A 000 986 56 01