Engine Coolant Temperature Sensor -G62-, REMOVING AND INSTALLING

Procedure 

• The engine is cold.

-- Briefly open the coolant expansion tank cap -arrow- and release any residual pressure in the cooling system and then close it again until it locks.

-- Remove the air filter housing. Refer to AIR FILTER HOUSING, REMOVING AND INSTALLING .

Versions with Coolant Shut-Off Valve -N82- : 

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-- Equipped on some models: loosen the transmission ventilation -1- on the battery tray and push it to the side, to do so release the catch in direction of -arrow- and bracket and remove it upward.

-- Loosen the hose clamp -2-.

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-- Remove bolt -1-, push the left air guide pipe left.

Continuation for All Vehicles: 

-- Disconnect the connector -1-.

-- Place a cloth underneath to catch any escaping coolant.

-- Remove the bolts -2- and remove the Engine Coolant Temperature Sensor -G62- -3-.

• Replace the O-rings after removing them.

-- Insert the new engine coolant temperature sensor immediately so that as little coolant is lost as possible.

-- Install the air filter housing. Refer to AIR FILTER HOUSING, REMOVING AND INSTALLING .

-- Fill with coolant. Refer to COOLANT, DRAINING AND FILLING .

Tightening Specifications 

• Refer to OVERVIEW - ENGINE COOLANT TEMPERATURE SENSOR 
• Refer to OVERVIEW - CHARGE AIR SYSTEM
• Refer to OVERVIEW - CHARGE AIR HOSE CONNECTIONS