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Home >> Mercedes Benz >> 2021 >> A35 AMG >> Repair and Diagnosis >> Collision >> Body Panels >> Collision - Rear Wall And Rear End (177 Chassis) >> Rear Wall And Rear End Body Repair >> Completely Remove And Install Rear Longitudinal Member - Ar64.20-P-1220MFB

Completely Remove And Install Rear Longitudinal Member - Ar64.20-P-1220MFB

Model 177.1/9 

Fig 1: Rear Longitudinal Member And Components Locations (Model 177.1/9)
G15492101DANGERWARNINGCAUTIONREMOVINGIMPORTANTREFER TO SPECIAL TOOLSREFER TO SPECIAL TOOLSIMPORTANTINSTALLINGDANGERDANGERDANGERWARNINGREFER TO SPECIAL TOOLSIMPORTANTREFER TO SPECIAL TOOLSREFER TO SPECIAL TOOLSIMPORTANTIMPORTANTIMPORTANTIMPORTANTIMPORTANTCourtesy of MERCEDES-BENZ USA
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
WARNING 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
CAUTION 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
Notice General information on body repair   AH60.00-P-0001-01KOA
Notice Pretreatment of bonding surfaces   AH60.00-P-0008-01SX
  General information on MB materials   AH98.00-P-9409-03A
REMOVING Remove     
1 Remove detachable parts in area of repair point.    
2 Cover all detachable parts remaining in vehicle with spark protection blankets. IMPORTANTCommercially available devices/tools 
Spark-proof blankets
 
3 Set up straightening bench with straightening bench crossmembers and straightening set.    
REFER TO SPECIAL TOOLS 000 588 01 23 00 Body straightening system   WS60.00-P-0023K
4 Place vehicle on straightening bench and fasten.    
5 Completely remove bottom rear-end center section.   AR64.20-P-1000MFV 
6 Remove spare wheel well.   AR64.20-P-1245MFV 
7 Remove rear longitudinal member(1) with connection(2), rear seat reinforcement(3), cover(4), and cover(5). Model 177.1/9
with code U54 (Compound-link axle)
with code U55 (Multi-link axle)
AR64.20-P-1200-22MFB 
REFER TO SPECIAL TOOLS 000 588 00 84 00 Heat gun   WS54.00-P-0049B
    IMPORTANTCommercially available devices/tools 
Round wire brush
Spot weld milling machine
Body saw
Wet/dry vacuum cleaner
 
    1K-zinc dust paint *BR00.45-Z-1056-07A 
INSTALLING Install     
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 inflammable materials from the hazard area. Use air extraction system. AS00.00-Z-0007-01A
DANGER Risk of explosion  and poisoning caused by solvent vapors and gasses. Risk of injury  to skin and eyes when working with anticorrosion agents Never spray corrosion protection on flames or hot, glowing objects and keep them well away from all potential sources of ignition. Use them only in well-ventilated rooms; wear respiratory protection. AS97.00-Z-0001-01A
DANGER Risk of explosion  caused by paint vapors igniting. Risk of poisoning  caused by inhaling paint vapors. No smoking! No open fire! Use respiratory protection, protective clothing, gloves, safety glasses and protective skin cream. Ensure that the area is well ventilated. AS98.00-Z-0002-01A
WARNING 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
Notice Measures for preventing damage to components when performing electric welding and soldering work   AH60.00-P-0001-02A
  General information on riveting   AH60.00-P-0003-01N
8 Prepare rear longitudinal member(1) with connection(2), rear seat reinforcement(3), cover(4), and cover(5). Model 177.1/9
with code U55 (Multi-link axle)
except code U54 (Compound-link axle)
AR64.20-P-1200-23MFB 
    Model 177.1/9
with code U54 (Compound-link axle)
except code U55 (Multi-link axle)
AR64.20-P-1200-23MFC 
REFER TO SPECIAL TOOLS 000 588 01 84 00 Welder   WS60.00-P-0021K
    IMPORTANTCommercially available devices/tools 
Round wire brush
Body saw
Wet/dry vacuum cleaner
 
    Parts kit for 2-component adhesive for body *BR00.45-Z-1162-02A 
    1K-zinc dust paint *BR00.45-Z-1056-07A 
9 Install rear longitudinal member(1) with connection(2), rear seat reinforcement(3), cover(4), and cover(5). Model 177.1/9
with code U55 (Multi-link axle)
except code U54 (Compound-link axle)
AR64.20-P-1200-24MFB 
    Model 177.1/9
with code U54 (Compound-link axle)
except code U55 (Multi-link axle)
AR64.20-P-1200-24MFC 
REFER TO SPECIAL TOOLS 000 588 01 23 00 body straightening system   WS60.00-P-0023K
REFER TO SPECIAL TOOLS 000 588 02 84 00 Welder   WS60.00-P-0022K
    IMPORTANTCommercially available devices/tools 
Wet/dry vacuum cleaner
 
    Parts kit for 2-component adhesive for body *BR00.45-Z-1162-02A 
    Blind rivet 6.5X12.5 (clamping range 2 mm to 5 mm, draw-off strength min. 19 kN) *BR00.45-Z-1012-13A 
    Blind rivet 6.5X14.5 (clamping range 4 mm to 7 mm, draw-off strength min. 19 kN) *BR00.45-Z-1016-13A 
    1K-zinc dust paint *BR00.45-Z-1056-07A 
10 Release vehicle from straightening bench, lift and remove straightening bench.    
11 Clean weld joints and sheet metal flange. IMPORTANTCommercially available devices/tools 
Round wire brush
 
12 Install spare wheel well.   AR64.20-P-1245MFV 
13 Completely install bottom rear-end center section.   AR64.20-P-1000MFV 
14 Clean repair area. IMPORTANTCommercially available devices/tools 
Wet/dry vacuum cleaner
 
15 Prime repair areas with a primer filler.    
Notice Notes on paintwork repairs IMPORTANT Use only primer filler approved by Daimler AG: http://xentryportal.mercedes-benz.com AH98.00-P-9408-02A
16 Seal seam after repair.   AR97.10-P-4000MFA
17 Paint repair areas and adjacent surfaces.    
Notice1 Notes on paintwork repairs   AH98.00-P-9408-02A
    IMPORTANT Use only paints approved by Daimler AG: http://xentryportal.mercedes-benz.com  
18 Supplement cavity preservation   AR97.20-P-1500MFA
19 Reinstall detachable parts in area of repair point.    
REPAIR MATERIALS

Number Designation Order number
BR00.45-Z-1012-13A Blind rivet 6.5X12.5 (clamping range 2 mm to 5 mm, draw-off strength min. 19 kN) A 004 990 16 97
BR00.45-Z-1016-13A Blind rivet 6.5X14.5 (clamping range 4 mm to 7 mm, draw-off strength min. 19 kN) A 004 990 17 97
BR00.45-Z-1056-07A 1K-zinc dust paint A 000 986 28 00
BR00.45-Z-1162-02A Parts kit for 2-component adhesive for body A 012 989 17 71