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Home >> Mercedes Benz >> 2023 >> CLS450 >> Repair and Diagnosis >> Brakes >> Traction Control >> Brakes - Hydraulic & Mechanical System - 257 Chassis 1 Of 2 >> Testing & Repair >> Remove/Install Brake Fluid Reservoir - AR42.10-P-0301FR

Remove/Install Brake Fluid Reservoir - AR42.10-P-0301FR

Model 257 

Model 290 

Fig 1: Brake Fluid Reservoir Components Location - Model 257
G14548935Courtesy 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  Brake fluid notes   AH42.50-P-0001-01A 
  Notes on safety-relevant components   AH00.00-Z-0019-01A
REMOVING Remove     
1 Remove cover over Brake fluid reservoir (1).    
2 Disconnect electrical connection (2).    
3 Unscrew cap (3) and remove sieve from Brake fluid reservoir (1).    
4 Extract Brake fluid from Brake fluid reservoir (1).    
5 Remove locking pin (4).    
6 Remove Brake fluid reservoir (1) from master Brake cylinder (5) and seal connections with suitable stop plugs. NOTES
Collect Brake fluid which runs out with an absorbent rag.
Otherwise, the paint will be damaged.
 
    SPECIAL TOOL Record plug Fig 2
INSTALLING Install     
7 Remove stop plugs from connections and attach Brake fluid reservoir (1) to master Brake cylinder (5). INSTALLATION IMPORTANT Replace sealing rings (6) between Brake fluid reservoir (1) and master Brake cylinder (5).  
8 Install locking pin (4).    
9 Fill Brake fluid reservoir (1) with Brake fluid.    
REFER TO MAINTENANCE     AP42.10-P-4210B
10 Insert sieve into Brake fluid reservoir (1) and screw on cap (3).    
11 Connect electrical connection (2).    
12 Check area around Brake fluid reservoir (1) for leak tightness.    
13 Install cover over Brake fluid reservoir (1).    
Fig 2: Identifying Record Plug (129 589 00 91 00)
G11971934Courtesy of MERCEDES-BENZ USA