Partially replace main floor - AR63.40-P-1180MCC

MODEL 451.3/4 

Front main floor 

Illustrated on model 451.3 

Fig 1: Identifying Front Main Floor

Courtesy of MERCEDES-BENZ USA

	Removing
	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
	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
	Pretreatment of bonding surfaces		AH60.00-P-0008-01MCC
	Measures for preventing damage to vehicles or components when performing electric welding work		AH00.00-P-0005-01FF
	Notes on performing repair, body work and welding on vehicles with airbags and ETR units		AH91.00-P-0002-01SM
	Notes on replacing body parts		AH60.00-P-0027-01FF
	General information on repairs to body		AH60.00-P-0001-01FF
	The generally required conventional tools are required for body work
1	Remove detachable parts in the repair area
2	Cover all detachable parts remaining in vehicle (area to be repaired)	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 longitudinal member reinforcement		AR63.30-P-0818MCC
8	Remove longitudinal member locking lug		AR62.20-P-1267MCC
9	Remove mounting console on bottom front longitudinal member		AR62.20-P-1265MCC
10	Partially remove outer longitudinal member inner shell on entrance		AR63.30-P-1143MCC
11	Remove front longitudinal member		AR62.20-P-1242MCC
12	Remove front floor section (1)		AR63.40-P-1180-24MCC
13	Prepare connecting points for front main floor section (1) on body		AR63.40-P-1180-25MCC
14	Prepare front main floor section (1) for installation		AR63.40-P-1180-26MCC
	Install
15	Install section of front main floor (1)	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.	AR63.40-P-1180-27MCC
		Adhesive	*BR00.45-Z-1092-02A
16	Install accelerator pedal mounting console		AR63.40-P-1300MCC
17	Partially install longitudinal member inner shell on entrance		AR63.30-P-1143MCC
18	Install mounting console on bottom front longitudinal member		AR62.20-P-1265MCC
19	Install longitudinal member locking lug		AR62.20-P-1267MCC
20	Partially install longitudinal member reinforcement		AR63.30-P-0818MCC
21	Partially install side wall reinforcement		AR63.20-P-0862MCC
22	Install lower A-pillar reinforcement	On model 451.3	AR63.20-P-1114MCC
		On model 451.4	AR63.20-P-1114MCO
23	Install lower outer A-pillar	On model 451.4	AR63.20-P-1102MCO
24	Partially install side wall paneling	On model 451.3	AR63.10-P-0115MCC
		On model 451.4	AR63.10-P-0115MCO
25	Clean welds and sheet metal flange with wire brush and clean areas to be repaired
26	Prime area to be repaired using primer filler
27	Supply standard seam seals with body sealant		AR97.10-P-4000MCC
		Sealant	*BR00.45-Z-1003-01A
28	Supplement standard underbody protection with permanent underbody sealant	Underfloor protection	*BR00.45-Z-1001-05A
29	Paint area repaired and adjacent surfaces
	Notes on paintwork repairs		AH98.00-P-9408-02MCC
30	Apply additional cavity preservation		AR97.20-P-1500FF
		Teroson protective wax	*BR00.45-Z-1008-05A
31	Reinstall all detachable parts removed