Replace thread for integral carrier mount - AR61.10-P-6200MCU

MODEL 451.3/4 

Fig 1: Drilling Out Damaged Thread In Crossmember

Courtesy of MERCEDES-BENZ USA

	Removing
	Notes on thread repairs		AH00.00-P-0008-01MCC
	The following tools are required for repair	Drill   Wet/dry vacuum cleaner
1	Remove rear drive module		AR01.00-P-3060MCU
	Replace
2	Drill out damaged thread in crossmember (1)	Hold spiral bit (2) vertical to hole to prevent damaging remaining thread See Fig 1 . Thread insert repair kit	Fig 3
3	Countersink hole in crossmember (1) with seat cutter (3)	See Fig 1 . Thread insert repair kit	Fig 3
4	Recut thread down to bottom of hole with thread tap (4)	See Fig 1 . Thread tap set	Fig 2
		Thread insert repair kit	Fig 3
5	Remove drilling shavings with wet/dry vacuum cleaner.
6	Attach threaded socket (5) to lubricated thread former (6) and screw into hole	See Fig 1 . Use threaded bushing (5) with a length of 16.3 mm. If the threaded bushing (5) is flush with the crossmember (1), increased force is required for turning until the inner thread is formed and pressed into the basic thread The thread former (6) can be turned more easily when pressing is finished. Thread tap set	Fig 2
		Thread insert repair kit	Fig 3
	Install
7	Install rear drive module		AR01.00-P-3060MCU

Fig 2: Identifying Thread Tap Set (450 589 00 99 00)

Courtesy of MERCEDES-BENZ USA

Fig 3: Identifying Thread Insert Repair Kit (450 589 01 99 00)

Courtesy of MERCEDES-BENZ USA