Check water drain in heater/air conditioning system, repair if necessary - AR83.00-P-2000MCD

MODEL 451.3/4 except CODE (I01) Air conditioning Plus 

Fig 1: Checking Water Drain In Heater/Air Conditioning System

Courtesy of MERCEDES-BENZ USA

Dimension: 

Fig 2: Identifying Water Drain, Heater Housing, Fitting And Grommet

Courtesy of MERCEDES-BENZ USA

	Remove
1	Remove foot support on passenger side	Model 451.3##/4## 1	AR68.30-P-1340MCC
		Model 451.3##/4## 2 * not for USA	AR68.30-P-1340MCE
	Checking
2	Check whether water drain (1) is installed.	If not, perform repair work.
	Repair
3	Remove battery	Model 451.3##/4## 1	AR54.10-P-0005MCC
		Model 451.3##/4## 2 * not for USA	AR54.10-P-0005MCE
4	Shorten new water drain (1) 6 mm	Cut along dotted line.
5	Remove grommet from body opening (arrow b)
6	Drill fitting (2.2) on heater housing (2) with 8 mm drill bit.	Maintain drilling depth (a) of 55 mm. If the drilling depth (a) is too shallow, water draining is not guaranteed, if the drilling depth (a) is too deep, the heater box (2) can be damaged. Rechargeable drill/screwdriver
7	Remove drilling shavings.
8	Slide water drain (1) onto fitting (2.2) on heater housing (2) and align in relation to retainer (arrow c).
9	Insert grommet (1.1) on water drain (1) into body opening (arrow b)
10	Install battery	Model 451.3##/4## 1	AR54.10-P-0005MCC
		Model 451.3##/4## 2 * not for USA	AR54.10-P-0005MCE
	Install
11	Install foot support on passenger side	Model 451.3##/4## 1	AR68.30-P-1340MCC
		Model 451.3##/4## 2 * not for USA	AR68.30-P-1340MCE