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Home >> Mercedes Benz >> 2019 >> CLA250 4Matic, Gas >> Repair and Diagnosis >> Collision >> General Collision Information >> Rear Wall & Rear End >> Testing & Repair >> Completely remove/install rear longitudinal member - AR64.20-P-1220NKA

Completely remove/install rear longitudinal member - AR64.20-P-1220NKA

MODEL 117, 156, 176 

Shown on MODEL 176 

Fig 1: Rear Longitudinal Member Remove/Install Components - Shown On Model 176
G11065713DANGERDANGERDANGERNOTESIMPORTANTIMPORTANTIMPORTANTIMPORTANTREMOVINGREFER TO SPECIAL TOOLSIMPORTANTIMPORTANTIMPORTANTINSTALLINGDANGERDANGERDANGERNOTESIMPORTANTIMPORTANTIMPORTANTREFER TO SPECIAL TOOLSREFER TO SPECIAL TOOLSREFER TO SPECIAL TOOLSIMPORTANTIMPORTANTCourtesy of MERCEDES-BENZ USA
DANGER Risk of death  when touching components on vehicles with high-voltage on-board electrical system Do not touch components and open lines of the high-voltage on-board electrical system. Persons who wear electronic implants (e.g. cardiac pacemakers), must not carry out any work on high-voltage on-board electrical systems. AS54.00-Z-0001-01A
DANGER Risk of death  caused by vehicle slipping or toppling off of the lifting platform. Align vehicle between vehicle lift columns and position the four support plates at the vehicle lift support points specified by the vehicle manufacturer. AS00.00-Z-0010-01A
DANGER Risk of injury  caused by scraping or cutting body parts on sharp vehicle parts Always wear protective gloves when working on or near sharp and non-deburred vehicle parts. Deburr repair panels. AS00.00-Z-0017-01A
NOTES Pretreatment of bonding surfaces   AH60.00-P-0008-01SX
IMPORTANT Note on high-voltage on-board electrical system   AH54.00-P-0010-01A
IMPORTANT Information on preventing damage to electronic components due to electrostatic discharge   AH54.00-P-0001-01A
IMPORTANT General information on body repair   AH60.00-P-0001-01A
IMPORTANT General information on MB materials   AH98.00-P-9409-03A
REMOVING Remove     
1 Remove detachable parts in area to be repaired    
2 Cover all detachable parts remaining on vehicle with spark protection blanket    
3 Equip straightening bench with module members, cross members and straightening tool set    
REFER TO SPECIAL TOOLS 000 588 01 23 00 Body straightening system   WS60.00-P-0023K
IMPORTANT Observe set-up plans provided.  
4 Place vehicle on straightening bench and fasten    
5 Damage area, reshaping    
6 Remove rear end assembly Model 117 AR64.20-P-1020NKC 
Model 156, 176 AR64.20-P-1020NKA
7 Remove spare wheel well (3)   AR64.20-P-1245NKB 
8 Remove rear longitudinal member (1) and rear cover (2)   AR64.20-P-1200-22NKA
IMPORTANTCommercially available devices/tools 
Round wire brush
Body power jigsaw
Spot weld milling machine
Heat gun
Wet/dry vacuum cleaner
 
Zinc dust paint suitable for spot welding *BR00.45-Z-1001-07A 
9 Prepare rear longitudinal member (1), rear cover (2) and spare wheel well (3)   AR64.20-P-1200-23NKA
IMPORTANTCommercially available devices/tools 
Round wire brush
Hole punching pliers (Ø 6 mm)
Body power jigsaw
 
Zinc dust paint suitable for spot welding *BR00.45-Z-1001-07A 
INSTALLING Install     
DANGER Risk of death  when touching components on vehicles with high-voltage on-board electrical system Do not touch components and open lines of the high-voltage on-board electrical system. Persons who wear electronic implants (e.g. cardiac pacemakers), must not  carry out any work on high-voltage on-board electrical systems. AS54.00-Z-0001-01A
DANGER The high voltage used for electric welding presents a lethal hazard. Risk of explosion  from welding in areas close to highly inflammable materials. Risk of injury  from weld splatter and UV-light when welding. Risk of poisoning  from inhaling welding gases Use insulating mats. Wear protective clothing, safety glasses and a protective mask. Remove highly flammable materials from the hazard area. Use air extraction system. AS00.00-Z-0007-01A
DANGER Risk of poisoning  caused by inhaling vapors or swallowing adhesive. Risk of injury  caused by adhesive coming into contact with skin and eyes Wear respiratory protection, protective gloves and safety glasses. Pour adhesive into suitable and appropriately marked containers only. AS00.00-Z-0016-01A
NOTES Measures for preventing damage to components when performing electric welding and soldering work   AH60.00-P-0001-02A
IMPORTANT Information on preventing damage to electronic components due to electrostatic discharge   AH54.00-P-0001-01A
IMPORTANT Note on high-voltage on-board electrical system   AH54.00-P-0010-01A
IMPORTANT General information on riveting   AH60.00-P-0003-01N
10 Install rear longitudinal member (1), rear cover (2) and spare wheel well (3)   AR64.20-P-1200-24NKA
REFER TO SPECIAL TOOLS 000 588 02 39 00 Rivet press tool   WS60.00-P-0010B
REFER TO SPECIAL TOOLS 000 588 02 84 00 Welder   WS60.00-P-0022K
REFER TO SPECIAL TOOLS 000 588 01 23 00 Body straightening system   WS60.00-P-0023K
    IMPORTANTCommercially available devices/tools 
Round wire brush
Spot welder
Manual temporary fastener, 6.35 mm
Wet/dry vacuum cleaner
 
    Zinc dust paint suitable for spot welding *BR00.45-Z-1001-07A 
    Adhesive kit, body, 2-component adhesive *BR00.45-Z-1092-02A 
    Blind rivet 6.5 X 12.5 *BR00.45-Z-1012-13A 
    Blind rivet, 6.4 x 14 *BR00.45-Z-1001-13A 
11 Clean weld joints and sheet metal flange with round wire brush IMPORTANTCommercially available devices/tools 
Round wire brush
 
12 Release vehicle from straightening bench, lift vehicle and remove straightening bench    
13 Install rear end assembly Model 117 AR64.20-P-1020NKC 
Model 156, 176 AR64.20-P-1020NKA
REPAIR MATERIALS

Number Designation Order number
BR00.45-Z-1001-07A Zinc dust paint suitable for spot welding A 000 986 34 42
BR00.45-Z-1001-13A Blind rivet, 6.4 x 14 A 003 990 35 97
BR00.45-Z-1012-13A Blind rivet 6.5 X 12.5 A 004 990 16 97
BR00.45-Z-1092-02A Adhesive kit, body, 2-component adhesive A 009 989 36 71