Remove/Install Mechanical Refrigerant Compressor - AR83.55-P-5310MFD

Engine 260 in model 118, 177, 247 

Engine 282 in model 118, 177, 247 

except code ME08 (Hybrid drive 75-84 kW VARIANT (INCLUDING PLUGIN)) 

Fig 1: Mechanical Refrigerant Compressor Components Location - Model 247 With Engine 260 (Shown On Model 177)

Courtesy of MERCEDES-BENZ USA

Shown on model 177 with engine 282 

Courtesy of MERCEDES-BENZ USA

	Risk of fire  due to ignition of R1234yf refrigerant on hot components. Risk of poisoning  caused by inhaling overheated refrigerant vapors. Risk of injury  to skin and eyes caused by contact with escaped R1234yf refrigerant and when working on pressurized parts. Risk of explosion  due to formation of ignitable refrigerant/air mixtures	Never perform welding work on or near a closed air conditioning system. No smoking or open flames. Wear safety glasses and protective gloves. Work only in well ventilated rooms. Carry out repair work on the air conditioning system circuit only after the system has been evacuated.	AS83.00-Z-0007-01A
	Risk of poisoning  caused by inhaling overheated refrigerant vapors from an air conditioning system containing R134a. Risk of injury  to skin and eyes caused by contact with liquid R134a refrigerant and when working on pressurized parts	Never perform welding work on or near a closed air conditioning system. No smoking or open flames. Wear safety glasses and protective gloves. Work only in well ventilated rooms. Carry out repair work on the air conditioning system circuit only after the system has been evacuated.	AS83.00-Z-0006-01A
	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
Notice	Protect air conditioning circuit and components from moisture when carrying out repair work		AH83.30-P-0005-01KOA
Notice	Procedure for a damaged or leaky air conditioning system		AH83.30-P-0004-01KOA
Notice	Information on preventing damage to electronic components due to electrostatic discharge		AH54.00-P-0001-01A
	Notes on handling refrigerant R1234yf		AH83.30-P-0003-02A
	Notes on handling refrigerant R134a		AH83.30-P-0003-01KOA
	Notes on safety-relevant components		AH00.00-Z-0019-01A
	Remove/install
1	Switch off ignition and store transmitter key outside of transmitter range (min. 2 m).
2	Discharge air conditioning system.		AR83.30-P-1760MFA
3	Remove engine air intake duct (6) upstream of air filter housing.
4	Remove front right wheel and tire assembly.	Engine 282 in model 118, 177, 247 except code ME08 (Hybrid drive 75-84 kW VARIANT (INCLUDING PLUGIN))	AR40.10-P-1102MFA
5	Remove front section of fender liner in right front fender.	Engine 282 in model 118, 177, 247 except code ME08 (Hybrid drive 75-84 kW VARIANT (INCLUDING PLUGIN))	AR88.10-P-1301MFA
6	Slacken poly-V-belt and remove from belt pulley on refrigerant compressor (A9) or refrigerant compressor with magnetic clutch (A9/7).	Engine 260 in model 118, 177, 247 except code B01 (48V technology)	AR13.22-P-1202MFC
		Engine 282 in model 118, 177, 247 except code B01 (48V technology) except code ME08 (Hybrid drive 75-84 kW VARIANT (INCLUDING PLUGIN)) except code ME10 (Hybrid vehicle (plug-in, PHEV))	AR13.22-P-3902-01MFD
		Routing diagram for poly-V belt Engine 282 in model 118, 177, 247 except code ME08 (Hybrid drive 75-84 kW VARIANT (INCLUDING PLUGIN))	AR13.22-P-3902-02MFD
		Routing diagram for poly-V belt Engine 260 in model 118, 177, 247 except code ME08 (Hybrid drive 75-84 kW VARIANT (INCLUDING PLUGIN)) : Pay attention to poly-V belt routing diagram.	AR13.22-P-3902-02NKB
7	Remove bottom engine compartment paneling.	Engine 260 in model 118, 177, 247 with code M016 (Uprated engine)	AR61.20-P-1105MFR
		Engine 260 in model 118, 177, 247 except code M016 (Uprated engine) Engine 282 in model 118, 177, 247 except code ME08 (Hybrid drive 75-84 kW (INCLUDING PLUGIN)) : Only install lower engine compartment paneling after leak test.	AR61.20-P-1105MFA
8	Release electrical connector (1) and disconnect.
9	Remove bolts (2) of refrigerant lines.	Engine 260 in model 118, 177, 247 Bolt, refrigerant line to refrigerant compressor	*BA83.55-P-1002-02F
		Engine 282 in model 118, 177, 247 except code ME08 (Hybrid drive 75-84 kW VARIANT (INCLUDING PLUGIN)) Bolt, refrigerant line to refrigerant compressor	*BA83.55-P-1002-02G
10	Detach refrigerant lines and seal opened connections using suitable stop plugs.
	Compressor oils (specification 362.1)	: Replace sealing rings. Moisten sealing rings with compressor oil.	BB00.40-P-0362-01A
		Record plug	Fig 2
11	Unscrew bolts (3) on refrigerant compressor (A9) or refrigerant compressor with magnetic coupling (A9/7), and place holder (4) to one side.	: Make sure that the bracket (4) and the connected lines are correctly seated. Engine 282 in model 118, 177, 247 except code ME08 (Hybrid drive 75-84 kW VARIANT (INCLUDING PLUGIN)) Bolt, refrigerant compressor to crankcase/oil pan	*BA83.55-P-1001-02G
		Engine 260 in model 118, 177, 247 Bolt, refrigerant compressor to timing case/oil pan	*BA83.55-P-1001-02F
12	Remove refrigerant compressor (A9) or refrigerant compressor with magnetic clutch (A9/7) downwards.
13	Remove receiver drier.	When replacing the desiccant cartridge. Engine 260 in model 118, 177, 247 with code 2U8 (Alternative refrigerant) Engine 282 in model 118, 177, 247 with code 2U8 (Alternative refrigerant) except code ME08 (Hybrid drive 75-84 kW VARIANT (INCLUDING PLUGIN)) Only replace the desiccant cartridge if one of the following conditions is met: The vehicle is older than 5 years. The refrigerant is contaminated (color dark gray to black). The refrigerant compressor (A9) or refrigerant compressor with magnetic clutch (A9/7) has locked up. The refrigerant circuit was damaged (e.g. after an accident).	AR83.30-P-6521MFA
14	Install in the reverse order.
15	Perform commissioning of refrigerant compressor (A9) or refrigerant compressor with magnetic clutch (A9/7).	When replacing the refrigerant compressor (A9) or refrigerant compressor with magnetic clutch (A9/7).
			AD00.00-P-2000-06MFA
	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
16	Perform engine test run, checking air conditioning system for proper operation and leaks.
17	Install lower engine compartment lining.	Engine 260 in model 118, 177, 247 with code M016 (Uprated engine)	AR61.20-P-1105MFR
		Engine 260 in model 118, 177, 247 except code M016 (Uprated engine) Engine 282 in model 118, 177, 247 except code ME08 (Hybrid drive 75-84 kW VARIANT (INCLUDING PLUGIN))	AR61.20-P-1105MFA

Fig 2: Identifying Record Plug (129 589 00 91 00)

Courtesy of MERCEDES-BENZ USA