Remove/Install Poly-V Belt - AR13.22-P-1202MFB

Engine 260 in model 118, 177, 247 with code B01 (48V technology) 

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 pinching or crushing when working on springs or spring bodies that are under tension	Use only approved tensioning devices; additionally screen off hazardous area if necessary. Check special tools for damage and proper operation (visual inspection). Wear protective gloves.	AS00.00-Z-0001-01A
	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
	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
4	Remove
1	Remove engine cover.		AP01.10-P-2405-01C
2	Release tension of poly-V-belt (4) and remove.		AR13.22-P-3902-01MFI
	Check
3	Check guide pulley (2) for wear and damage.	Engine 260 with code 9U8 (Control code - Major assembly technical further development) with code B01 (48V technology) Screw/bolt, guide pulley to timing case cover If there is a problem: ↓ Replace guide pulley (2).	*BA13.25-P-1002-01Z
4	Check tensioning device (3) for wear and damage.	If there is a problem: ↓ Replace tensioning device (3).	AR13.25-P-3220MFI
5	Check vibration damper (1) of crankshaft for wear and damage.	If there is a problem: ↓ replace vibration damper (1).	AR03.30-P-1600MFC
6	Check refrigerant compressor belt pulley (5) for wear and damage.	If there is a problem: ↓ Replace refrigerant compressor.	AR83.55-P-5310MFD
7	Check starter-alternator belt pulley (6) for wear and damage.	If there is a problem: ↓ Replace belt-driven starter alternator.	AR15.40-P-5060MFA
8	Check poly-V-belt (4) for wear and damage.	If a problem is identified, ↓ Replace poly-V belt (4).
5	Install
9	Position poly-V-belt (4).		AR13.22-P-3902-02NKB
10	Counterhold tensioning device (3), remove safety pin from tensioning device (3) and tension poly-V-belt (4).
11	Install engine cover.
			AP01.10-P-2405-01C
	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
12	Perform engine test run and Check poly-V-belt (4) is correctly seated.