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Replace firewall wall segment side - AR62.25-P-5754MCC

MODEL 451.3/4 

Illustrated on model 451.3 

Fig 1: Identifying Firewall Segment
G10978689Courtesy of MERCEDES-BENZ USA
MODIFICATION NOTES

30.1.09 Information on alternative repair methods are worked in (riveting or plug welding as alternative and structural bonding)    
REMOVING Removing     
DANGER Risk of death  caused by high voltage used for electric welding. Risk of explosion  caused by welding in the area of highly inflammable materials. Risk of injury  caused by welding spatter and UV light while welding. Risk of poisoning  caused by inhaling welding fumes. Use insulating mats. Wear protective clothing, safety glasses and protective mask. Remove highly inflammable materials from the hazard area. Use air extractor system. AS00.00-Z-0007-01A
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 Measures for preventing damage to vehicles or components when performing electric welding work   AH00.00-P-0005-01FF
NOTES Notes on performing repair, body work and welding on vehicles with airbags and ETR units   AH91.00-P-0002-01SM
NOTES Pretreatment of bonding surfaces   AH60.00-P-0008-01MCC
NOTES General information on riveting   AH60.00-P-0003-01MCC
IMPORTANT Notes on replacing body parts   AH60.00-P-0027-01FF
IMPORTANT General information on repairs to body   AH60.00-P-0001-01FF
IMPORTANT Generally conventional tools are required for body work, additional tools required are listed above. Pneumatic/hydraulic blind rivet tool
 
 
IMPORTANT The repair method using riveting described here can be replaced SHIELDED GAS PLUG WELD by plug welding if required. Adapt preparatory work accordingly.    
1 Remove detachable parts in the repair area    
2 Cover all detachable parts remaining in vehicle (area to be repaired) NOTES Use fire-resistant weld protection blanket to prevent damage from flying sparks.  
3 Partially remove side wall paneling On model 451.3 AR63.10-P-0115MCC
    On model 451.4 AR63.10-P-0115MCO
4 Remove lower A-pillar outer section On model 451.4 AR63.20-P-1102MCO
5 Remove lower A-pillar reinforcement On model 451.3 AR63.20-P-1114MCC
    On model 451.4 AR63.20-P-1114MCO
6 Partially remove side wall reinforcement   AR63.20-P-0862MCC
7 Partially remove side longitudinal member reinforcement   AR63.30-P-0818MCC
8 Remove front wheel well locking lug   AR63.20-P-0013MCC
9 Remove longitudinal member locking lug   AR62.20-P-1267MCC 
10 Remove mounting console on bottom front longitudinal member   AR62.20-P-1265MCC 
11 Partially remove outer longitudinal member inner shell on entrance   AR63.30-P-1143MCC
12 Remove front longitudinal member   AR62.20-P-1242MCC 
13 Remove wheel well   AR62.20-P-1200MCC 
14 Remove suspension strut tower   AR62.20-P-1232MCC 
15 Remove firewall segment (1)   AR62.25-P-5754-01MCC
16 Prepare mating surfaces on vehicle for firewall segment (1).   AR62.25-P-5754-02MCC
    Zinc dust paint suitable for spot welding *BR00.45-Z-1001-07A 
17 Prepare firewall segment (1) for installation   AR62.25-P-5754-03MCC
    Zinc dust paint suitable for spot welding *BR00.45-Z-1001-07A 
INSTALLING Install     
18 Install firewall segment (1) IMPORTANT The repair method using bonding described here is not required for reasons of strength and can be eliminated. To ensure corrosion protection, it is necessary to apply a seam sealant. AR62.25-P-5754-04MCC
    Adhesive *BR00.45-Z-1092-02A 
    Rivet *BR00.45-Z-1001-13A 
19 Install suspension strut tower   AR62.20-P-1232MCC 
20 Install wheel well   AR62.20-P-1200MCC 
21 Install front longitudinal member   AR62.20-P-1242MCC 
22 Partially install longitudinal member inner shell on entrance   AR63.30-P-1143MCC
23 Install mounting console on bottom front longitudinal member   AR62.20-P-1265MCC 
24 Install longitudinal member locking lug   AR62.20-P-1267MCC 
25 Install front wheel well locking lug   AR63.20-P-0013MCC
26 Partially install side longitudinal member reinforcement   AR63.30-P-0818MCC
27 Partially install side wall reinforcement   AR63.20-P-0862MCC
28 Install lower A-pillar reinforcement On model 451.3 AR63.20-P-1114MCC
    On model 451.4 AR63.20-P-1114MCO
29 Install lower outer A-pillar On model 451.4 AR63.20-P-1102MCO
30 Partially install side wall paneling On model 451.3 AR63.10-P-0115MCC
    On model 451.4 AR63.10-P-0115MCO
31 Install front diagonal strut console on longitudinal member On model 451.4 AR61.10-P-5140MCO
32 Clean welds and sheet metal flange with wire brush and clean areas to be repaired    
33 Prime area to be repaired using primer filler    
34 Supply standard seam seals with body sealant   AR97.10-P-4000MCC
    Sealant *BR00.45-Z-1003-01A 
35 Supplement standard underbody protection with permanent underbody sealant Underfloor protection *BR00.45-Z-1001-05A 
36 Paint area repaired and adjacent surfaces    
NOTES Notes on paintwork repairs   AH98.00-P-9408-02MCC
37 Apply additional cavity preservation   AR97.20-P-1500FF
    Teroson protective wax *BR00.45-Z-1008-05A 
38 Reinstall all detachable parts removed    
REPAIR MATERIALS

Number Designation Order number
BR00.45-Z-1003-01A Sealant, white, 310 ml, DB supply specification 6069.20 A 001 989 63 20
BR00.45-Z-1092-02A Adhesive kit, body, 2-component adhesive A 009 989 36 71
BR00.45-Z-1001-05A Underfloor protection 800 ml A 001 986 46 10
BR00.45-Z-1008-05A Teroson protective wax
Art. no.: 122.73Q
Henkel Loctite
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