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

Model 453 

Shown on Model 453.3 

Courtesy of MERCEDES-BENZ USA

	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
	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
	General information on MB materials		AH98.00-P-9409-03SM
	General information on body repair		AH60.00-P-0001-01FF
	Remove
1	Remove detachable parts in area to be repaired
2	Cover all detachable parts remaining on vehicle with spark protection blankets
3	Remove rear crossmember		AR64.20-P-1100SR
4	Remove rear longitudinal member (1, 2)	Commercially available tools Round wire brush Body jig saw Weld-spot milling machine Wet/dry vacuum cleaner	AR64.20-P-1200-22SRA
5	Prepare rear longitudinal member (1, 2) for installation	Commercially available tools Round wire brush Wet/dry vacuum cleaner	AR64.20-P-1200-23SRA
		Zinc dust paint suitable for spot welding, replaced by A 000 986 28 00 1K zinc dust paint	*BR00.45-Z-1001-07A
	Install
	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
	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-0003-01MCC
6	Install rear longitudinal member (1, 2)	Commercially available tools Round wire brush Spot welder MIG-MAG inert gas welder	AR64.20-P-1200-24SRA
		Zinc dust paint suitable for spot welding, replaced by A 000 986 28 00 1 K zinc dust paint	*BR00.45-Z-1001-07A
7	Install rear crossmember		AR64.20-P-1100SR
8	Clean weld joints and sheet metal flange with round wire brush	Commercially available tools Round wire brush
9	Remove spark protection blankets
10	Clean repair area	Commercially available tools Wet/dry vacuum cleaner
	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
11	Prime repair area using primer filler Notes on paintwork repairs		AH98.00-P-9408-02MCC
		Use only primer filler approved by Daimler AG: http://aftersales.mercedes-benz.com
12	Seal seam following repairs		AR97.10-P-4000SR
	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
13	Paint repair areas and adjacent surfaces Notes on paintwork repairs	Use only paints approved by Daimler AG: http://aftersales.mercedes-benz.com	AH98.00-P-9408-02MCC
14	Add cavity preserving agent		AR97.20-P-1500SR
15	Install all detachable body components in area to be repaired

REPAIR MATERIALS

Number	Designation	Order number
BR00.45-Z-1001-07A	Zinc dust paint suitable for spot welding, replaced by A 000 986 28 00 1 K zinc dust paint	A 000 986 34 42