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

Engine 256.9 in model 213, 222, 238, 257, 290 

Shown on engine 256.9 in model 222.059 

Courtesy of MERCEDES-BENZ USA

	Risk of injury  to skin and eyes suffering scalding from contact with hot coolantspray. 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 trim at front left in engine compartment (3).	Vehicle with front left engine compartment trim (3).
2	Unscrew cap (1) from coolant expansion reservoir for low-temperature circuit (2).
	Check
3	Check coolant level.	With a cold engine, the coolant level 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 (arrow).
		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 coolant expansion reservoir for low-temperature circuit (2) with cap (1).
5	Install trim in engine compartment at front left (3).	Vehicle with front left engine compartment trim (3).