Remove/Install Low Temperature Circuit Additional Radiator - AR09.41-P-3001MNC

Engine 178 in model 190.377/378 

as of model year 2017 

Engine 178 in model 190.379/380/381/477/478/479/480 

Fig 1: Low Temperature Circuit Additional Radiator/Cooler Package Components Location - Engine 178 In Model 190.379/380/381/477/478/479/480 And In Model 190.377/378 As Of Model Year 2017

Courtesy of MERCEDES-BENZ USA

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  to skin and eyes suffering scalding from contact with hot coolant spray. Risk of poisoning  from swallowing coolant.	Do not open cooling system unless coolant temperature is below 90°C. Open cap slowly and release the overpressure. Do not pour coolant into beverage containers.	AS20.00-Z-0001-01A
		Wear protective gloves, protective clothing and safety glasses.
Notice	Notes on avoiding damage through contamination and foreign objects		AH00.00-P-5000-01A
Notice	Notes on coolant		AH20.00-P-2080-01KOA
	Remove/install
1	Remove right lamp unit.		AR82.10-P-4730RG
		Only install lower Engine compartment lining after leak test.
2	Drain coolant of the Engine cooling circuit.	Engine 178 in model 190.379/380/381/479/480 Engine 178 in model 190.381	AR20.00-P-1142MNJ
		Engine 178 in model 190.379/380/479/480	AR20.00-P-1142MNB
3	Drain coolant of low temperature circuit.	Engine 178 in model 190.381	AR20.00-P-1144MNJ
		Engine 178 in model 190.377/378 as of model year 2017 Engine 178 in model 190.379/380/477/478/479/480	AR09.41-P-6834MNB
4.1	Remove coolant hoses (1a) and coolant hoses (2a) from the right wheel arch cooler package (6).	Engine 178 in model 190.379/380/381/479/480	AR20.20-P-7441-01RQ
4.2	Remove coolant hoses (2a) from the right wheel arch cooler package (6).	Engine 178 in model 190.377/378 as of model year 2017 Engine 178 in model 190.477/478	AR20.20-P-7441-01RQ
5	Remove screw (3) from right wheel arch cooler package (6).	Engine 178 in model 190.379/380/381/479/480
		Screw, coolant line to wheel arch cooler package	*BA20.20-P-1009-01Q
6	Remove screws (7).	Screw, additional cooler holder to crossmember	*BA20.20-P-1008-01Q
7	Remove right wheel arch cooler package (6) toward the front.	Wet bottom decoupling elements with lubricant.
		Lubricant, rubber assembly 1 L	*BR00.45-Z-1010-06A
8	Remove decoupling elements (4) with the bracket from the right wheel arch cooler package (6).	Wet decoupling elements (4) with the lubricant.
		Lubricant, rubber assembly 1 L	*BR00.45-Z-1010-06A
9	Remove low temperature circuit additional cooler from the right wheel arch cooler package (6).
10	Disassemble air ducting (5) and unclip from the right wheel arch cooler package (6).	When replacing the low temperature cooler.
11	Install in the reverse order.
	Check
	Risk of burn injuries  , suffocation and poisoning when working on the exhaust system and the components connected to it. Risk of suffocation and risk of poisoning caused by inhalation of gaseous and solid components of the exhaust. Risk of poisoning  caused by skin contact with solid components of the exhaust.	Wear protective clothing and safety glasses. Use the extraction system. Move people out of the danger zone.	AS49.00-Z-0001-01A
	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 an Engine test run and check Engine cooling system for leak tightness.
13	Install lower Engine compartment lining.	Engine 178 in model 190.381	AR61.20-P-1105RGB
		Engine 178 in model 190.377/378 as of model year 2017 Engine 178 in model 190.379/380/477/478/479/480	AR61.20-P-1105RG