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Home >> Mercedes Benz >> 2021 >> C300 Base, 2D Convertible >> Repair and Diagnosis >> Body & Frame >> Exterior Body Panels >> Collision - Rear Wall & Rear End - 205 Chassis >> Testing & Repair >> Completely Remove/Install Rear Longitudinal Member - Ar64.20-P-1220LW

Completely Remove/Install Rear Longitudinal Member - Ar64.20-P-1220LW

Model 205.0/1/2/3 

Fig 1: Rear Longitudinal Member Component Location (Model 205.0/1/2/3) (Shown On Model 205.0)
G14187310Courtesy of MERCEDES-BENZ USA

Shown on model 205.0 

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 .
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 .
DANGER Risk of death  when working on component parts and systems with U >= 30 V alternating voltage (AC) or U >= 60 V direct voltage (DC) Do not touch damaged or defective live component parts and lines or non-insulated electrical connections and lines. AS00.00-Z-0035-01A
DANGER Risk of explosion  from aluminum grinding dust, risk of injury to respiratory system from inhaling dust Wear dust filter mask, safety glasses and protective gloves.
Use a suitable, grounded dust extraction system.
AS60.00-Z-0007-01N .
Topical note  General information on handling vehicles with high-voltage on-board electrical system and/or lithium-ion battery and/or gaseous-fuel drive system   AH00.00-Z-0300-01A .
Topical note  Information on preventing damage to electronic components due to electrostatic discharge   AH54.00-P-0001-01A .
Topical note  Notes on battery   AH54.10-P-0001-01A .
Topical note  General information on body repair   AH60.00-N-0001-01A .
Topical note  Pretreatment of bonding surfaces   AH60.00-P-0008-01SX .
Topical note  General information on crack diagnosis of aluminum parts   AH60 00-P-0014-01N .
  Note on working on aluminum components and vehicles   AH60.00-P-0034-01LW .
  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 Remove rear end assembly Model 205.0/1 AR64.20-P-1020LW .
    Model 205.2 AR64.20-P-1020LWS
    Model 205.3 AR64.20-P-1020CLW .
4.1 Remove inner C-pillar side wall Model 205.0/1 AR63.10-P-0700LW .
4.2 Remove inner side wall with partial rear outer wheelhouse Model 205.2/3
Model 205.2
AR63.10-P-6050LWS
    Model 205.3 AR63.10-P-6050CLW .
5 Remove longitudinal member outer shell Model 205.0/1/2 AR63.30-P-1102LW
    Model 205.3
IMPORTANT Remove only rear section of longitudinal member outer shell.
AR63.30-P-1102CLW .
6 Remove rear-end door and partial rear longitudinal member IMPORTANTCommercially available devices/tools 
Round wire brush
Spot weld milling machine
Heat gun
Wet/dry vacuum cleaner
Body and aluminum workplace
Aluminum tools
AR64.20-P-1260-01LW .
    Zinc dust paint suitable for spot welding *BR00.45-Z-1001-07A .
7 Remove crossmember above rear axle   AR64.20-P-1301LW .
8 Remove rear longitudinal member(1) with end plate (4), bottom crossmember (2) and top crossmember (3) IMPORTANTCommercially available devices/tools 
Round wire brush
Body power jigsaw
Spot weld milling machine
Heat gun
Wet/dry vacuum cleaner
Body and aluminum workplace
Aluminum tools
AR64.20-P-1200-22LW .
    Zinc dust paint suitable for spot welding *BR00.45-Z-1001-07A .
9 Prepare rear longitudinal member(1), bottom crossmember (2), top crossmember (3) and end plate (4) IMPORTANTCommercially available devices/tools 
Round wire brush
Body power jigsaw
Body and aluminum workplace
Aluminum tools
AR64.20-P-1200-23LW .
    Zinc dust paint suitable for spot welding *BR00.45-Z-1001-07A .
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 .
Topical note  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 .
10 Install rear longitudinal member(1), bottom crossmember (2), top crossmember (3) and end plate (4)   AR64.20-P-1200-24LW .
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 IMPORTANTCommercially available devices/tools 
Round wire brush
Manual temporary fastener 6.35 mm
Blind rivet gun (minimum pull-off force 19 kN)
Spot welder
Hole finder
Wet/dry vacuum cleaner
Body and aluminum workplace
Aluminum tools
WS60.00-P-0023K .
    Zinc dust paint suitable for spot welding *BR00.45-Z-1001-07A .
    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 6.4X12 (clamping range 1 mm to 3.5 mm, draw-off strength min. 15.5 kN) *BR00.45-Z-1035-13A .
    Blind rivet 6.5X14.5 (clamping range 4 mm to 7 mm, draw-off strength min. 19 kN) *BR00.45-Z-1016-13A .
11 Install crossmember above rear axle   AR64.20-P-1301LW .
12 Prepare rear-end door and partial rear longitudinal member IMPORTANTCommercially available devices/tools 
Round wire brush
AR64.20-P-1260-02LW .
    Zinc dust paint suitable for spot welding *BR00.45-Z-1001-07A .
13 Install rear-end floor and partial rear longitudinal member   AR64.20-P-1260-03LW .
REFER TO SPECIAL TOOLS 000 588 01 23 00 Body straightening system IMPORTANTCommercially available devices/tools 
Round wire brush
Manual temporary fastener 6.35 mm
Blind rivet gun (minimum pull-off force 19 kN)
Spot welder
Wet/dry vacuum cleaner
Body and aluminum workplace
Aluminum tools
IMPORTANT Observe set-up plans provided.
WS60.00-P-0023K .
    Zinc dust paint suitable for spot welding *BR00.45-Z-1001-07A .
    Parts kit for 2-component adhesive for body *BR00.45-Z-1162-02A .
    Blind rivet with countersunk head 6.4x17.0 (clamping range 4.5 mm to 6.5 mm, draw-off strength min. 15.5 kN) *BR00.45-Z-1055-13A .
    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 .
    Blind rivet 6.4 (clamping range 7.82 mm to 9.83 mm, draw-off strength min. 16 kN) *BR00.45-Z-1034-13A .
    Blind rivet 6.4 M6 (clamping range 5.82 mm to 7.82 mm, draw-off strength min. 16 kN) *BR00.45-Z-1032-13A .
14 Install longitudinal member outer shell Model 205.0/1/2 AR63.30-P-1102LW
    Model 205.3
IMPORTANT Install only rear section of longitudinal member outer shell.
AR63.30-P-1102CLW .
15.1 Install inner C-pillar side wall Model 205.0/1 AR63.10-P-0700LW .
15.2 Install inner side wall with partial outer rear wheel well Model 205.2/3  
    Model 205.2 AR63.10-P-6050LWS
    Model 205.3 AR63.10-P-6050CLW .
16 Install rear end assembly Model 205.0/1 AR64.20-P-1020LW .
    Model 205.2 AR64.20-P-1020LWS
    Model 205.3 AR64.20-P-1020CLW .
17 Install detachable parts in area to be repaired    
REAR LONGITUDINAL MEMBER REPAIR MATERIALS (Model 205.0/1/2/3)

Number Designation Order number
BR00.45-Z-1001-07A Zinc dust paint suitable for spot welding A 000 986 34 42
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-1032-13A Blind rivet 6.4 M6 (clamping range 5.82 mm to 7.82 mm, draw-off strength min. 16 kN) A 003 990 81 97
BR00.45-Z-1034-13A Blind rivet 6.4 (clamping range 7.82 mm to 9.83 mm, draw-off strength min. 16 kN) A 003 990 80 97
BR00.45-Z-1035-13A Blind rivet 6.4X12 (clamping range 1 mm to 3.5 mm, draw-off strength min. 15.5 kN) A 000 991 76 32
BR00.45-Z-1055-13A Blind rivet with countersunk head 6.4x17.0 (clamping range 4.5 mm to 6.5 mm, draw-off strength min. 15.5 kN) A 000 991 86 32
BR00.45-Z-1162-02A Parts kit for 2-component adhesive for body A 012 989 17 71