Remove/Install Retaining Lock For Crankshaft/Ring Gear - AR03.30-P-5000GQ

ENGINE 157, 276, 278 in MODEL 166 

ENGINE 157, 276, 278 in MODEL 292 

ENGINE 276 in MODEL 251 

	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
	Risk of death  when touching components on vehicles with high-voltage on-board electrical system	Do not touch damaged or defective components and open lines of the high-voltage on-board electrical system. Persons who wear electronic implants (e.g. cardiac pacemakers) must not  carry out any work on high-voltage on-board electrical systems.	AS54.00-Z-0001-01A
	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
	Notes on avoiding damage through contamination and foreign objects		AH00.00-P-5000-01A
	Notes on self-locking nuts and bolts		AH00.00-N-0001-01A
	Note on high-voltage on-board electrical system		AH54.00-P-0010-01A
	Evaluation of high-voltage components		AH54.00-P-6500-01SXH
	Install/remove
1	Perform enable for the high voltage on-board electrical system	Engine 276 in model 166.063
			AR54.10-P-1150GQA
2	Remove corresponding underfloor paneling	Engine 157, 278 in model 166 Engine 157, 278 in model 292	AR61.30-P-1001GQ
		Engine 276 in model 166 Engine 276 in model 292
		Engine 276 in model 251	AR61.30-P-1001RT
3	Remove left catalytic converter	Engine 276.8 in model 166, 251, 292
			AR49.10-P-5500GQC
4.1	Remove starter	Engine 276.9 in model 166
			AR15.30-P-7100GQA
4.2	Remove cover from access opening for retaining lock	Engine 157, 276, 278 in model 292 Engine 157, 276.8, 278 in model 166 Engine 276 in model 251
		Engine 276, 278 in model 292 with transmission 725.0 Engine 276.8, 278 in model 166 with transmission 725.0 Screw/bolt, transmission to engine	*BA27.10-P-1001-04H
		Engine 157 in model 166 with transmission 722.9	*BA27.40-P-1008-01A
		Engine 157 in model 292 with transmission 722.9
		Engine 276 in model 251 with transmission 722.9
		Engine 276.8 in model 166 with transmission 722.9
		Engine 276.8 in model 292 with transmission 722.9
		Engine 278 in model 166 with transmission 722.9
		Engine 278 in model 292 with transmission 722.9 Bolt, automatic transmission to engine
		Engine 276 in model 166 with transmission 724.2 Bolt/nut, transmission to engine	*BA27.10-P-1001-04G
	Check
5	Remove charge air cooler and place with lines and coolant hoses attached to one side	Engine 276.8 in model 166, 251, 292
			AR09.41-P-6819GQC
6	Check toothing of ring gear of drive plate for wear and damage by rotating engine at center bolt on crankshaft in direction of engine rotation	Socket wrench bit If damage is present ↓ Replace drive plate.	Fig 2
		Engine 276 in model 166, 251, 292	AR03.30-P-8001GQ
		Engine 157, 278 in model 166 Engine 157, 278 in model 292	AR03.30-P-8001MLJ
Warning	Risk of injury.  Moving parts can pinch, crush or, in extreme cases even sever extremities.	No parts of the body or limbs should be within the operating area of mechanical components when moving components.	AS00.00-Z-0009-01A
7	Insert retaining lock	If necessary turn engine at crankshaft.
		Retaining lock	Fig 1
8	Removal in the reverse order

Fig 1: Identifying Retaining Lock (112 589 03 40 00)

Courtesy of MERCEDES-BENZ USA

Fig 2: Identifying Socket Wrench Bit (001 589 65 09 00)

Courtesy of MERCEDES-BENZ USA