Remove/install coolant temperature sensor - AR15.60-P-2711SXI

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ENGINE 642 in MODEL 207, 212, 218, 221, 222

Shown on engine 642 in model 221

Fig 1: Coolant Temperature Sensor Remove/Install Components

Courtesy of MERCEDES-BENZ USA

	Remove/install
	Risk of injury caused by fingers being jammed or pinched when removing, installing or aligning hoods, doors, trunk lid/rear-end door or sliding roof.	No parts of the body or limbs should be within the operating area when the components are moving.	AS00.00-Z-0011-01A
	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 pressure. Do not pour coolant into beverage containers. Wear protective gloves, protective clothing and safety glasses.	AS20.00-Z-0001-01A
	Notes on coolant		AH20.00-N-2080-01A
1	Remove engine cover	ENGINE 642 in MODEL 207, 212, 218, 221, 222
1	Remove engine cover	ENGINE 642 in MODEL 221 Only install engine cover after the leak test. Ensure correct seating of the engine cover.	AR01.10-P-2405SXI
2	Remove engine air intake duct downstream of air filter	ENGINE 642 in MODEL 207, 212, 218, 222	AR09.10-P-8130OGE
2	Remove engine air intake duct downstream of air filter	ENGINE 642 in MODEL 221	AR09.10-P-8130SXI
3	Disconnect electrical connection at coolant temperature sensor (B11/4)
4	Unlatch securing clamp (1)
5	Remove coolant temperature sensor (B11/4)	Replace O-ring (2).
6	Install in the reverse order
	Check
7	Check cooling system for leaktightness	ENGINE 642 in MODEL 221	AR20.00-P-1010SX
		ENGINE 642 in MODEL 218	AR20.00-P-1010OMA
		ENGINE 642 in MODEL 207, 212	AR20.00-P-1010CW
		ENGINE 642 in MODEL 222	AR20.00-P-1010LF
	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
8	Perform an engine test run and check engine for leaktightness		AS00.00-Z-0005-01A