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Home >> Mercedes Benz >> 2021 >> CLS450 Base >> Repair and Diagnosis >> Brakes >> Traction Control >> Brakes - Hydraulic & Mechanical System - 257 Chassis 1 Of 2 >> Testing & Repair >> Remove/Install Brake Hose At Rear Axle - AR42.10-P-0023FR

Remove/Install Brake Hose At Rear Axle - AR42.10-P-0023FR

Model 257 

Shown except code 489 (AIR BODY CONTROL) 

Fig 1: Brake Hose At Rear Axle Components Location - Model 257 (Shown Except Code 489)
G14548908Courtesy of MERCEDES-BENZ USA
DANGER 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 
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 installing Brake hoses   AH42.10-P-9406-01LWO 
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 
REMOVINGINSTALLING Remove/install     
1 Remove corresponding rear wheel   AR40.10-P-1102A
2 Detach Brake line (3) from Brake hose (1) NOTES
Seal connections immediately.
Otherwise damage can be caused by escaping Brake fluid.
IMPORTANT The expansion reservoir for Brake fluid must not run completely empty.
IMPORTANT Collect escaping Brake fluid.
 
    TORQUE SPECIFICATION Retaining screw, Brake line to Brake hose *BA42.10-P-1001-04P 
    SPECIAL TOOL Box wrench bit Fig 3
    SPECIAL TOOL Record plug Fig 2
3 Unscrew banjo bolt from Brake caliper (2) and take off Brake hose (1) NOTES
Immediately seal off connection on Brake caliper (2).
Otherwise damage can be caused by escaping Brake fluid.
IMPORTANT Collect escaping Brake fluid.
 
    TORQUE SPECIFICATION Brake hose to Brake caliper *BA42.10-P-1002-04P 
    SPECIAL TOOL Record plug Fig 2
4 Install in the reverse order    
5 Bleed Brake system   AR42.10-P-0010FR 
BRAKE LINES, BRAKE HOSES

Number Designation Model 257
BA42.10-P-1001-04P Retaining screw, Brake line to Brake hose Nm 14
BRAKE LINES, BRAKE HOSES

Number Designation Model 257
BA42.10-P-1002-04P Brake hose to Brake caliper Front axle Nm 24
    Rear axle Nm 42
Fig 2: Identifying Record Plug (129 589 00 91 00)
G11065549Courtesy of MERCEDES-BENZ USA
Fig 3: Identifying Box Wrench Bit (000 589 75 03 00)
G12939483Courtesy of MERCEDES-BENZ USA