Remove/Install Coolant Temperature Sensor - AR15.60-P-2712MNA

Engine 176 in model 463 

up to model year 2019 

Engine 177 in model 205 

Shown on Engine 177 

Fig 1: Coolant Temperature Sensor Components Location - Engine 176 In Model 463 Up To Model Year 2019 (Shown On Engine 177)

Courtesy of MERCEDES-BENZ USA

	Remove/install
1	Remove left-hand air filter housing		AR09.10-P-1150MNA
2	Detach boot on left ATL and place to one side	H  Clamp, boot to exhaust gas turbocharger/air filter	*BA01.20-P-1003-01J
3	Drain off coolant	Engine 176 in model 463 up to model year 2019	AR20.00-P-1142MNF
		Engine 177 in model 205	AR20.00-P-1142LW
4	Disconnect electrical connection (1)
5	Remove screw/bolt (2)	Bolt, temperature sensor bracket to crankcase	*BA07.04-P-1002-01Q
6	Pull out coolant temperature sensor (3) with retaining plate (4) upwards	: Replace O-ring.
7	Remove retaining plate (4) from coolant temperature sensor (3)	When replacing the coolant temperature sensor (3).
8	Install in the reverse order
	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
9	Perform an engine test run and check engine for proper function