Check Low-Temperature Circuit Coolant Level - AP20.30-P-2052F

Engine 176 in model 167, 217, 222 

Engine 176, 177 in model 463 

Engine 177 in model 167, 205, 213, 217, 222, 253, 290 

Courtesy of MERCEDES-BENZ USA

Shown on engine 176.9 in model 222.1 

Courtesy of MERCEDES-BENZ USA

Shown on engine 177.9 in model 205.0 

Courtesy of MERCEDES-BENZ USA

Shown on engine 177.9 in model 213.0 

	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. Wear protective gloves, protective clothing and safety glasses.	AS20.00-Z-0001-01A
Notice	Notes on coolant		AH20.00-P-2080-01KOA
	Remove
1	Remove engine cover (3).	Engine 176 in model 167, 217, 222 Engine 176, 177 in model 463 as of model year 2019 Engine 177 in model 167, 213, 217, 222, 253, 290
		Engine 176 in model 167	AP01.10-P-2405-01M
		Engine 176 in model 463 as of model year 2019	AR01.10-P-2405XGA
		Engine 177 in model 213	AR01.10-P-2405MNE
		Engine 177 in model 167, 290	AP01.10-P-2405-01E
		Engine 177 in model 463 as of model year 2019	AR01.10-P-2405XGC
2	Unscrew cap (1) of low-temperature circuit coolant expansion reservoir (2).
	Check
3	Check coolant level.	The coolant level in a cold engine must reach the marking (arrow) in the low-temperature circuit coolant expansion reservoir (2). When the coolant is warm: approx. 1 cm (0.39 inch) above the marking.
		If the coolant level is too low, ↓ Check cooling system for leak tightness and coolant for antifreeze content.
		Coolant specifications	BB00.40-P-0310-01A
		After obtaining special order.
	Install
4	Seal low-temperature circuit coolant expansion reservoir (2) with cap (1).
5	Install engine cover (3).	Engine 176 in model 167, 217, 222 Engine 176, 177 in model 463 as of model year 2019 Engine 177 in model 167, 213, 217, 222, 253, 290
		Engine 176 in model 167	AP01.10-P-2405-01M
		Engine 176 in model 463 as of model year 2019	AR01.10-P-2405XGA
		Engine 177 in model 213	AR01.10-P-2405MNE
		Engine 177 in model 167, 290	AP01.10-P-2405-01E
		Engine 177 in model 463 as of model year 2019	AR01.10-P-2405XGC