Engine Coolant Temperature Sensor -G62-: Removing

WARNING: This page is about a different car, the 2010 Audi Q7, 2009 Audi Q7, 2008 Audi Q7, and 2007 Audi Q7. However, it is still accessible from the selected car via links, so may be relevant.

-- Pull rear engine cover off -arrows-.

Fig 1: Pulling Rear Engine Cover

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-- Disconnect electrical connector -2- at Mass Airflow (MAF) sensor 2 -G246-.

Fig 2: Locating Electrical Connector, Air Guide Hose, And Retaining Clips

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-- Remove left air guide hose -1- from air duct.

-- Release retaining clips -3- and remove upper left section of air filter housing.

-- Disconnect hose -1- to Secondary Air Injection (AIR) pump.

Fig 3: Identifying Hose To Secondary Air Injection Pump, Electrical Harness Connector, Right Air Guide Hose, And Retaining Clips

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-- Disconnect electrical harness connector -4- at MAF sensor -G70-.

-- Remove right air guide hose -3- from air duct.

-- Release retaining clips -2- and remove upper right section of air filter housing from lower section.

Vehicles with Air Suspension

NOTE:

If necessary, remove electrical connector for Heated Oxygen Sensor (HO2S) 2 -G108- from bracket at right strut tower for better access.

-- Press circlip -1- forward from hose coupling.

Fig 4: Circlip, Release Ring And Ventilation Hose

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-- Press release ring -2- down -arrows- and remove vent hose -3- from upper section of air filter.

All Vehicles

-- Disconnect vacuum hose -arrow- to suction jet pump.

Fig 5: Identifying Vacuum Hose To Suction Jet Pump

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-- Remove hose -2- to Evaporative Emission (EVAP) canister purge regulator valve 1 -N80-.

Fig 6: Identifying Vacuum Hose To Evaporative Emission (EVAP) Canister Purge Regulator Valve N80

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NOTE:

Ignore -1- and -3-.

-- Remove EVAP canister purge regulator valve 1 -- from bracket and lay aside with lines connected.

-- Disconnect the vacuum hose -4-.

Fig 7: Identifying Vacuum Hoses, Hose Clamp, Bolts, And Crankcase Ventilation Hose

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CAUTION:

Risk of violating emissions legislation.

Do not open hose connection -2- !

-- Lay the air guide hose aside with the vacuum hose connected.

-- Loosen hose clamp -1- and remove bolts -3-.

-- Remove air guide pipe to right.

-- Disconnect electrical connector -arrow- at Engine Coolant Temperature (ECT) Sensor -G62-.

Fig 8: Component Location Of Engine Coolant Temperature (ECT) Sensor G62

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NOTE:

Place a rag beneath to catch escaping coolant.

-- Remove retaining clip and remove ECT Sensor --.

NOTE:

To improve clarity, the removed engine is shown.