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

MODEL 451.3/4 

Rear main floor 

Shown on model 451.3 

Fig 1: Identifying Rear 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 splatter 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
	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
	General information on riveting		AH60.00-P-0003-01MCC
	Notes on replacing body parts		AH60.00-P-0027-01FF
	General information on body repair		AH60.00-P-0001-01FF
	The following workshop equipment and tools are required for repair:	Round wire brush   Pneumatic eccentric sander   Cutting grinder   Cartridge gun   Drill   Angle grinder   Body jig saw   Wet/dry vacuum cleaner   Spot weld milling cutter   Vise grip pliers   Inverter spot welder   MIG MAG gas welder (steel, brazing, aluminum)   Welding protective blanket
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	in case of model 451.3	AR63.10-P-0115MCC
		In model 451.4	AR63.10-P-0115MCO
4	Remove lower A-pillar outer section	In model 451.4	AR63.20-P-1102MCO
5	Remove lower A-pillar reinforcement	in case of model 451.3	AR63.20-P-1114MCC
		In 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 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 center main floor panel reinforcement		AR63.40-P-1110MCC
13	Partially remove crossmember below front seat		AR63.40-P-1189MCC
14	Remove center mounting console below front seat		AR63.40-P-1192MCC
15	Partially remove front main floor panel		AR63.40-P-1180MCC
16	Partially remove rear main floor panel (1).		AR63.40-P-1180-24MCD
17	Prepare connecting points for rear main floor section (1) on body		AR63.40-P-1180-25MCD
		Zinc dust paint suitable for spot welding	*BR00.45-Z-1001-07A
18	Partially prepare rear main floor section (1) for installation		AR63.40-P-1180-26MCD
		Zinc dust paint suitable for spot welding	*BR00.45-Z-1001-07A
	Install
19	Install rear main floor section (1)		AR63.40-P-1180-27MCD
20	Partially install front main floor panel		AR63.40-P-1180MCC
21	Install center mounting console below front seat		AR63.40-P-1192MCC
22	Partially install crossmember below front seat		AR63.40-P-1189MCC
23	Install center main floor panel reinforcement		AR63.40-P-1110MCC
24	Install front longitudinal member		AR62.20-P-1242MCC
25	Partially install longitudinal member inner shell on entrance		AR63.30-P-1143MCC
26	Install mounting console on bottom front longitudinal member		AR62.20-P-1265MCC
27	Install longitudinal member locking lug		AR62.20-P-1267MCC
28	Partially install side longitudinal member reinforcement		AR63.30-P-0818MCC
29	Install outer console below front seat		AR63.40-P-1192MCD
30	Install tank support	Depending on damage profile:
		Left tank support	AR61.10-P-5708MCD
		Right tank console	AR61.10-P-5708MCC
31	Install accelerator pedal mounting console		AR63.40-P-1300MCC
32	Partially install side wall reinforcement		AR63.20-P-0862MCC
33	Install lower A-pillar reinforcement	in case of model 451.3	AR63.20-P-1114MCC
		In model 451.4	AR63.20-P-1114MCO
34	Install lower outer A-pillar	In model 451.4	AR63.20-P-1102MCO
35	Partially install side wall paneling	in case of model 451.3	AR63.10-P-0115MCC
		In model 451.4	AR63.10-P-0115MCO
36	Clean welds and sheet metal flange with wire brush and clean areas to be repaired
37	Prime repair area using primer filler
38	Supply standard seam seals with body sealant		AR97.10-P-4000MCC
		Sealant	*BR00.45-Z-1003-01A
39	Supplement standard underbody protection with permanent underbody sealant	Underfloor protection	*BR00.45-Z-1001-05A
40	Paint repair area adjacent surfaces
	Notes on paintwork repairs		AH98.00-P-9408-02MCC
41	Apply additional cavity preservation		AR97.20-P-1500FF
		Teroson protective wax	*BR00.45-Z-1008-05A
42	Reinstall all detachable parts removed