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Home >> Mercedes Benz >> 2014 >> GL63 AMG >> Repair and Diagnosis >> External Pages >> Different car >> Section 153 (Brakes - Hydraulic & Mechanical System - Maintenance - 1 Of 2) >> Maintenance >> Replace Brake Fluid >> Replace brake fluid - AP42.00-P-4280AK

Replace brake fluid - AP42.00-P-4280AK

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Model 117, 156, 169, 176, 242, 246 

Model 245 (except 245.286) 

Illustrated on model 169 

Fig 1: Identifying Filling & Bleeding Device
G10037964Courtesy of MERCEDES-BENZ USA

Illustrated on model 169 

Fig 2: Identifying Expansion Reservoir & Cap
G10037965Courtesy 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
DANGER 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
DANGER Risk of injury  . Skin or eye injuries may result when handling hot or glowing objects. Wear protective gloves, protective clothing and safety glasses, if necessary. AS00.00-Z-0002-01A
NOTES Brake fluid notes   AH42.50-P-0001-01A
NOTES Notes on repairs to brake system   AH42.00-P-0003-01A
CLEANING Clean     
1 Clean cap (2) and expansion reservoir (1)    
REMOVING Remove     
2 Unscrew cap (2)    
3 Suction off brake fluid from the expansion reservoir (1)    
4 Add new brake fluid up to the Max. marking in the expansion reservoir (1)    
5 Connect filler/bleeder unit (01) to expansion reservoir (1) IMPORTANT Observe the operator's manual for the filling and bleeding unit (01).
Brake fluid change unit with supply tank (10-20 l)
 
6.1 Remove rear lower engine compartment paneling Vehicles with lower engine compartment paneling  
REFER TO TESTING & REPAIR MODEL 117, 156, 176, 242, 246 AR61.20-P-1105NKB
REFER TO TESTING & REPAIR Model 169, 245 (except 245.286) with code 484 (Rough road package) AR61.20-P-1105AL
REFER TO TESTING & REPAIR Model 169, 245 (except 245.286) except code 484 (Rough road package) AR61.20-P-1105AM
6.2 Remove bottom section of soundproofing Vehicles with bottom section of soundproofing  
REFER TO TESTING & REPAIR MODEL 117, 156, 176, 246 AR94.30-P-5300NKB
REFER TO TESTING & REPAIR Model 169, 245 (except 245.286) AR94.30-P-5300AK
  Change fluid     
7 Replace brake fluid    
REFER TO CAPACITIES & SPECIFICATIONS General brake fluid DOT 4. See GENERAL BRAKE FLUID (https://bevo.mercedes-benz.com/index.php?language_id=1)
REFER TO CAPACITIES & SPECIFICATIONS Brake fluids (DOT 4 plus) MB 331.0 brake fluid A 000 989 08 07
REFER TO SPECIAL TOOLS 000 588 01 82 00 Filling unit WS25.00-P-0016B
TORQUE SPECIFICATION Bleed screw on front-axle brake caliper, model 117, 156, 169, 176, 242, 245 (except 245.286), 246 Bleed screw on brake caliper *BA42.10-P-1001-10N 
TORQUE SPECIFICATION Bleed screw on rear-axle brake caliper, model 169, 245 (except 245.286) Bleed screw to brake caliper *BA42.10-P-1003-12N 
TORQUE SPECIFICATION Bleed screw on rear-axle brake caliper, model 117, 156, 176, 242, 246 Bleed screw to brake caliper *BA42.10-P-1002-12J 
TORQUE SPECIFICATION Bleed screw to central clutch release bearing, model 169 with transmission 711, 716.5 Bleed screw to central clutch release bearing *BA25.20-P-1001-01E 
TORQUE SPECIFICATION Bleed screw to central clutch release bearing, model 245.2 with transmission 711, 716.5 Bleed screw to central clutch release bearing *BA25.20-P-1001-01F 
TORQUE SPECIFICATION Bleed screw to central clutch release bearing, model 117, 156, 176, 242, 246 with transmission 711.6 Bleed screw to central clutch operator *BA25.20-P-1001-01B 
TORQUE SPECIFICATION Bleed screw to clutch slave cylinder, model 169 with transmission 711, 716.5 Bleed screw to clutch slave cylinder *BA25.20-P-1002-01E 
TORQUE SPECIFICATION Bleed screw to clutch slave cylinder, model 245.2 with transmission 711, 716.5 Bleed screw to clutch slave cylinder
New brake fluid must escape without any bubbles via the bleed hose:
↓
Bleed the system.
*BA25.20-P-1002-01F 
REFER TO TESTING & REPAIR Model 117, 156, 176, 242, 246 AR42.10-P-0010-02NKB
REFER TO TESTING & REPAIR Model 169
Model 245 (except 245.286)
AR42.10-P-0010-02AK
INSPECT Check     
8 Check brake system for leaks If there are problems:
↓
Rectify problem subject to separate repair order.
 
INSTALLING Install     
9.1 Install lower rear engine compartment paneling Vehicles with lower engine compartment paneling  
REFER TO TESTING & REPAIR MODEL 117, 156, 176, 242, 246 AR61.20-P-1105NKB
REFER TO TESTING & REPAIR Model 169, 245 (except 245.286) with code 484 (Rough road package) AR61.20-P-1105AL
REFER TO TESTING & REPAIR Model 169, 245 (except 245.286) except code 484 (Rough road package) AR61.20-P-1105AM
9.2 Install rear bottom section of soundproofing Vehicles with bottom section of soundproofing  
REFER TO TESTING & REPAIR MODEL 117, 156, 176, 246 AR94.30-P-5300NKB
REFER TO TESTING & REPAIR Model 169, 245 (except 245.286) AR94.30-P-5300AK
10 Lower vehicle    
11 Disconnect filling and bleeding unit (01)    
INSPECT Check     
12 Check fluid level in expansion reservoir (1)   AP42.10-P-4210AK 
CLUTCH OPERATING SYSTEM

Number Designation Transmission 711.6 in model 117, 156, 171, 172, 176, 203, 204, 207, 212, 242, 246
BA25.20-P-1001-01B Bleed screw to central clutch operator Nm 9
CLUTCH OPERATING SYSTEM

Number Designation Model 169.0/3 with transmission 711 Model 169.0/3 with transmission 716.5
BA25.20-P-1001-01E Bleed screw to central clutch release bearing Nm - 7
CLUTCH OPERATING SYSTEM

Number Designation Model 245.2 with transmission 711 Model 245.2 with transmission 716.5
BA25.20-P-1001-01F Bleed screw to central clutch release bearing Nm - 7
CLUTCH OPERATING SYSTEM

Number Designation Model 169.0/3 with transmission 711 Model 169.0/3 with transmission 716.5
BA25.20-P-1002-01E Bleed screw to clutch slave cylinder Nm 5 -
CLUTCH OPERATING SYSTEM

Number Designation Model 245.2 with transmission 711 Model 245.2 with transmission 716.5
BA25.20-P-1002-01F Bleed screw to clutch slave cylinder Nm 5 -
FRONT AXLE BRAKE CALIPER

Number Designation Model 117 Model 156
BA42.10-P-1001-10N Bleed screw on brake caliper Nm 18 18
FRONT AXLE BRAKE CALIPER

Number Designation Model 169 Model 176, 246
BA42.10-P-1001-10N Bleed screw on brake caliper Nm 14 18
FRONT AXLE BRAKE CALIPER

Number Designation Model 242 Model 245
BA42.10-P-1001-10N Bleed screw on brake caliper Nm 18 14
REAR AXLE BRAKE CALIPER

Number Designation Model 117 Model 156
BA42.10-P-1002-12J Bleed screw to brake caliper Nm 14 14
REAR AXLE BRAKE CALIPER

Number Designation Model 176, 246 Model 242
BA42.10-P-1002-12J Bleed screw to brake caliper Nm 14 14
REAR AXLE BRAKE CALIPER

Number Designation Model 169 Model 245 (except 245.286)
BA42.10-P-1003-12N Bleed screw to brake caliper Nm 14 14