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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 Bow Hydraulic Cylinder - AR77.37-P-4190LWR

Remove/Install Soft Top Bow Hydraulic Cylinder - AR77.37-P-4190LWR

Model 205.4 

Model 238.4 

G13023821Courtesy of MERCEDES-BENZ USA

Shown on left side of vehicle, model 205.4 

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
REMOVINGINSTALLING Remove/install     
1 Move soft top to repair position R2 IMPORTANTInstallation:  Completely close soft top. AR77.30-P-1030LWR 
2 Switch off ignition and store transmitter key outside of transmission range (min. 2 m) IMPORTANT After a waiting time of min. 20 s the hydraulic is depressurized.  
3 Cover rear fender    
4 Remove bolt (2) at top of hydraulic cylinder (1) IMPORTANT Observe installation position of bolt (2).  
5 Expose hydraulic lines (3)    
6 Remove lock washers (4) from hydraulic lines (3)    
7 Remove hydraulic lines (3) from hydraulic cylinder (1) IMPORTANT Catch hydraulic oil running out.  
8 Seal hydraulic lines (3) and connections of hydraulic cylinder (1) with stop plugs SPECIAL TOOL Record plug Fig 1
9 Lift retainer (5) using a suitable screwdriver, detach and remove hydraulic cylinder (1) at bottom NOTES Do not remove retainer (5).
Retainer (5) preload can otherwise be lost.
 
10 Install in the reverse order    
11 Check/correct oil level of hydraulic unit   AR77.37-P-3501LCA 
Fig 1: Identifying Record Plug (129 589 00 91 00)
G13023822Courtesy of MERCEDES-BENZ USA