EGR Temperature Sensor -G98-

WARNING: This page is about a different car, the 2014 Volkswagen Jetta, 2013 Volkswagen Jetta, 2012 Volkswagen Jetta, and 2011 Volkswagen Jetta. However, it is still accessible from the selected car via links, so may be relevant.

Special tools and workshop equipment required

Hose Clamps - Up To 25mm 3094
Torque Wrench 1331 5-50 Nm VAG 1331
Shop Crane - Drip Tray VAS 6208
Hose Clip Pliers VAS 6362
EGR Temp. Sensor Socket - 14mm T10401

Requirements

The ignition is off.
The engine must be cold.

Procedure

-- Remove the noise insulation. Refer to Description and Operation .

-- Drain the coolant. Refer to DRAINING AND FILLING .

NOTE:

The coolant hoses indicated must be removed and moved to the side to perform assembly work on the EGR Temperature Sensor -G98-.

-- Disconnect the coolant hoses from both connections -arrows A and D-.

Fig 1: Disconnect The Coolant Hoses

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Lay aside both coolant hoses -arrows B and C- as shown in the figure.

-- Remove the engine cover. Refer to ENGINE COVER .

CAUTION:

Electronic components could be destroyed when the battery is disconnected:

Follow the required steps when disconnecting the battery.

-- With the ignition turned off, disconnect the ground cable -arrow- from the battery.

Fig 2: Battery Ground Strap

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Remove the air filter housing. Refer to AIR FILTER HOUSING .

-- Remove the battery, the battery tray bolts -arrows- and the tray.

Fig 3: Battery Carrier Nuts

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-- Disconnect the connector from the EGR Temperature Sensor -G98- -arrow A- and guide the wire out.

Fig 4: Disconnect The Connector From The EGR Temperature Sensor

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NOTE:

Note the installation location of the lines and heat shield.

The figures shows the EGR Temperature Sensor -G98- as seen from the engine compartment looking out from the transmission side -arrow- below the brake master cylinder.

Fig 5: EGR Temperature Sensor

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-- Carefully guide the EGR Temp. Sensor Socket - 14mm T10401 with an extension onto the EGR Temperature Sensor -G98-.

Fig 6: Identifying Installation/Removal Of EGR Temperature Sensor Using T10401

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-- Make sure the wire from the EGR Temperature Sensor -G98- is guided into the groove on the EGR Temp. Sensor Socket - 14mm T10401 -arrow A-.

Fig 7: Guide T10401 Into EGR Temperature Sensor

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Loosen the EGR Temperature Sensor -G98- and remove it.

Installing

-- Install in the reverse order of removal. Note the following:

NOTE:

EGR Temperature Sensor -G98- tightening specification: 20 Nm

Cut off the gasket and replace if it is damaged or leaks

Maintain the tightening specification.

CAUTION:

Install the heat shield mats in their original locations.

Make sure the entire connection is seated securely.

Always replace self-locking nuts, seals, gaskets and clamps.

Hoses are secured with spring type clamps.

Hose Clip Pliers VAS 6362 or Hose Clip Pliers VAS 6340 are recommended for installing spring type clamps.