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Home >> Mercedes Benz >> 2008 >> CL550 >> Repair and Diagnosis >> Accessories & Equipment >> Interior/Exterior Trim >> Detachable Body Components -- Cl550 -- 216 Chassis >> Testing & Repair >> Remove/install hydraulic pump for trunk lid remote control - AR88.50-P-5070SX

Remove/install hydraulic pump for trunk lid remote control - AR88.50-P-5070SX

MODEL 216.3, 221.0 /1 with code (881) Remote trunk closing (RTC [HDFS]) 

Illustrated on model 221 

Fig 1: Identifying Trunk Lid Remote Control Remove/Install Components
G07638995Courtesy of MERCEDES-BENZ USA
REMOVINGINSTALLING Remove/install     
DANGER Risk of injury  caused by fingers being pinched or crushed  when removing, installing or aligning hoods, doors, trunk lids, tailgates or sliding roof. Keep body parts and limbs well clear of moving parts. see AS00.00-Z-0011-01A
NOTES Notes on avoiding damage to electronic components due to electrostatic discharge   see AH54.00-P-0001-01A
1 Remove right side paneling in trunk Vehicles without code (Z07) Top protection see AR68.30-P-4600SX
Vehicles with code (Z07) Top protection AR68.30-P-4600SXS
2 Disconnect HDS hydraulic pump connector (M51x1)    
3 Disconnect trunk lid position sensor connector (B24/16x1)    
4 Expose hydraulic line (4).    
5 Remove protective cap (6) together with TLC hydraulic pump (M51) from bracket.    
6 Press ball socket (8) off of hinge lever (7) and ball socket (2) off of rear fender    
7 Remove hydraulic cylinder (1) together with hydraulic line (4) and lay down to side.    
8 Remove TLC hydraulic pump (M51) from protective cap (6).    
9 Remove TLC hydraulic pump (M51) together with hydraulic line (4) and hydraulic cylinder (1).    
10 Install in the reverse order    
11.1 Denormalize remote trunk closing with STAR DIAGNOSIS, then normalize remote trunk closing Only when replacing HDS hydraulic pump (M51).
IMPORTANT Normalize remote trunk closing: Open trunk lid by actuating trunk lid handle; trunk lid opens automatically. Wait until TLC hydraulic pump (M51) switches off, then close trunk lid by actuating TLC button.
 
REFER TO SELF-DIAGNOSTIC SYSTEMS Connect STAR DIAGNOSIS and read out fault memory see AD00.00-P-2000-04A