Replace Rear Radial Shaft Sealing Ring - AR03.20-P-3003MNL

Engine 176 in model 217, 222

Fig 1: Rear Radial Shaft Sealing Ring Components Location - Engine 176 In Model 222

Courtesy of MERCEDES-BENZ USA

	Risk of injury . Skin or eye injuries may result when handling hot or glowing objects.	Wear protective gloves, protective clothing and safety glasses, if necessary.	AS00.00-Z-0002-01A
	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
	Risk of injury to skin and eyes due to handling of engine oil. Risk of poisoning caused by swallowing engine oil	Wear protective gloves, protective clothing and safety glasses. Do not fill engine oil into beverage containers.	AS18.00-Z-0001-01A
Notice	Notes on avoiding damage through contamination and foreign objects		AH00.00-P-5000-01A
	Remove
1	Remove drive plate	: Only install upper engine cover and lower engine compartment paneling after the performing a leak test.	AR03.30-P-8003MNL
2	Remove bolt (1)
3	Remove radial shaft sealing ring (2) with cap (3)	Radial shaft sealing ring (2) and cap (3) can only be removed together.
4	Check radial shaft sealing ring (2) and crankshaft for damage	If a problem arises ↓ Install new crankshaft.
			AR03.20-P-4351MNL
	Clean
5	Clean sealing surface on crankcase and oil pan		AR01.00-P-0050-01A
		Loctite 7200	*BR00.45-Z-1038-04A
		Loctite 7063 (400 ml) cleaning spray	*BR00.45-Z-1046-04A
	Install
6	Moisten sealing lip of new radial shaft sealing ring (2) with engine oil
	Specified engine oils for Cars, Vans (service) - Overview		BB00.40-P-0223-02A
7	Apply sealant to new cap (3) Notes on distribution of sealant on crankcase end cover		AH01.40-P-1000-09MNA
		Sealant, Loctite 5970, 50 ml	*BR00.45-Z-1013-01A
8	Position insertion tool on crankshaft	Insertion tool	Fig 2
9	Install new radial shaft sealing ring (2) and new cap using insertion tool (3)	Insertion tool	Fig 2
10	Remove insertion tool	Insertion tool	Fig 2
11	Tighten new screws/bolts (1)
Notice	Notes on threaded connections with aluminum screws/bolts		AH00.00-P-0006-01RM
Notice	Notes on threaded connections fastened using a tightening angle-based tightening process		AH00.00-P-0020-01A
		Screw/bolt, rear of bottom half of crankcase to crankcase/oil pan	*BA01.40-P-1002-01ZA
12	Install drive plate	: Install top engine cover and bottom engine compartment linings only after the leak test.	AR03.30-P-8003MNL
13	Check engine oil level and correct
			AP18.00-P-1812SKI
	Risk of accident from vehicle starting off by itself when engine running. Risk of injury (bruises and burns) resulting from working on the engine while it is being started or when it is running.	Secure vehicle to prevent it from starting off by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts.	AS00.00-Z-0005-01A
14	Perform an engine test run and check engine for leak tightness
15	Install lower engine compartment paneling		AR61.20-P-1105LF
16	Install upper engine cover

CRANKCASE, TIMING CASE COVER, END COVER

Number	Designation				Engine 176
BA01.40-P-1002-01ZA	Screw/bolt, rear of bottom half of crankcase to crankcase/oil pan	Aluminum screw/bolt	Stage 1	Nm	2
		Aluminum screw/bolt	Stage 2	∠°	45
		Steel screw/bolt		Nm	9

Fig 2: Identifying Insertion Tool (273 589 00 43 00)

Courtesy of MERCEDES-BENZ USA

REPAIR MATERIALS

Number	Designation	Order number
BR00.45-Z-1013-01A	Sealant, Loctite 5970, 50 ml	A 003 989 98 20 10
BR00.45-Z-1038-04A	Loctite 7200	A 010 989 90 71
BR00.45-Z-1046-04A	Loctite 7063 (400 ml) cleaning spray	A 001 986 71 71 09