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Home >> Mercedes Benz >> 2021 >> C43 AMG 2D Convertible >> Repair and Diagnosis >> Body & Frame >> Sun Roof/T-Top/Convertible Top >> Sliding Roof, Soft Top, Top Attachments - 205 Chassis >> Testing & Repair >> Remove/Install Soft Top Mechanism Hydraulic Cylinder - AR77.37-P-4171LWR

Remove/Install Soft Top Mechanism Hydraulic Cylinder - AR77.37-P-4171LWR

Model 205.4 

Model 238.4 

Shown on left side of vehicle 

G13023816Courtesy of MERCEDES-BENZ USA
G13023817Courtesy of MERCEDES-BENZ USA

Shown on left side of vehicle 

WARNING Risk of injury  caused by fingers being jammed or pinched when removing, installing or aligning hoods, doors, trunk lid/rear-end door or sliding roof. No parts of the body or limbs should be within the operating area when the components are moving. AS00.00-Z-0011-01A
WARNING Risk of injury.  Moving parts can pinch, crush or, in extreme cases even sever extremities. No parts of the body or limbs should be within the operating area of mechanical components when moving components. AS00.00-Z-0009-01A
WARNING Risk of injury  to skin or eyes from hydraulic fluid spraying out under pressure. Risk of poisoning  from swallowing hydraulic fluid. Depressurize hydraulic system completely before starting any work on it. Wear protective clothing and safety glasses. AS00.00-Z-0013-01A
REMOVING Remove     
1 Remove seat cushion in rear Model 205.4
except code 248 (Rear seat with integrated child seat)
except code P10 (Taxi package Germany)
Model 238.4
AR91.12-P-1020LW
2 Remove seat side bolster in rear   AR91.12-P-1711LWR
3 Remove side paneling in rear Model 205.4 AR68.30-P-4784LWR
    Model 238.4 AR68.30-P-4784LWO
4 Move soft top to repair position R4   AR77.30-P-1030LWR 
5 Cover rear fender    
6 Unhook cable (1) from soft top lock (2)    
7 Move soft top to repair position R2   AR77.30-P-1030LWR 
8 Disconnect battery ground line Model 205.4 AR54.10-P-0003LW
    Model 238.4
IMPORTANT After a waiting time of min. 20 s the hydraulic is depressurized.
AR54.10-P-0003LWO
9 Remove sidebag in rear Model 205.4
with code 298 (Rear sidebag with belt force limiter)
Model 238.4
with code 293 (Sidebags in rear)
AR91.60-P-0694CLW
10 Remove bolt (3) at bottom from hydraulic cylinder (4) IMPORTANT Observe installation position of bolt (3).  
11 Remove bolt (5) at top on hydraulic cylinder (4) IMPORTANT Observe installation position of bolts (5) and pull eye (6).  
12 Guide out hydraulic cylinder (4) and lay down on soft top compartment    
13 Mark hydraulic lines (8) in relation to corresponding connection on hydraulic cylinder (4)    
14 Remove lock washers (7) of hydraulic lines (8)    
15 Pull hydraulic lines (8) out of hydraulic cylinder (4) and remove hydraulic cylinder (4) IMPORTANT Catch hydraulic oil running out.  
16 Seal hydraulic lines (8) and connections of hydraulic cylinder (4) with stop plugs SPECIAL TOOL Record plug Fig 1
INSTALLING Install     
17 Remove stop plugs from hydraulic lines (8) and connections of hydraulic cylinder (4)    
18 Insert hydraulic lines (8) according to markings into corresponding connections on hydraulic cylinder (4)    
19 Install lock washers (7) on hydraulic lines (8)    
20 Position hydraulic cylinder (4) and install bolt (5) at top IMPORTANT Observe installation position of bolts (5) and pull eye (6).  
21 Remove bolt (3) at bottom of hydraulic cylinder (4) IMPORTANT Observe installation position of bolt (3).  
22 Move soft top manually to repair position R4 IMPORTANT Helper required. AR77.30-P-1030LWR 
23 Hook cable (1) into soft top lock (2) IMPORTANT The hook opening on cable (1) must face toward rear.  
24 Remove cover from rear fender    
25 Install sidebag in rear Model 205.4
with code 298 (Rear sidebag with belt force limiter)
Model 238.4
with code 293 (Sidebags in rear)
AR91.60-P-0694CLW
26 Install side trims in rear Model 205.4 AR68.30-P-4784LWR
    Model 238.4 AR68.30-P-4784LWO
27 Install seat side bolster in rear   AR91.12-P-1711LWR
28 Install seat cushion in rear Model 205.4
except code 248 (Rear seat with integrated child seat)
except code P10 (Taxi package Germany)
Model 238.4
AR91.12-P-1020LW
29 Connect ground cable to battery Model 205.4 AR54.10-P-0003LW
    Model 238.4 AR54.10-P-0003LWO
30 Completely close soft top with switch    
31 Check/correct oil level of hydraulic unit   AR77.37-P-3501LCA 
32 Move soft top to repair position R5   AR77.30-P-1030LWR 
33 Check, adjust distance of header bow (2) to piston rod of soft top compartment cover hydraulic cylinder   AR77.33-P-1051LWP 
Fig 1: Identifying Record Plug (129 589 00 91 00)
G13023818Courtesy of MERCEDES-BENZ USA