Audi Q3: Sensors
Overview - Front Axle Speed Sensor

1 - Wheel Speed Sensor
- Right Front ABS Wheel Speed Sensor -G45-/Left Front ABS Wheel Speed
Sensor -G47-
- Removing and installing, refer to
→ Chapter "Right/Left Front ABS Wheel Speed Sensor -G45-/-G47-, Removing
and Installing".
2 - Bolt
3 - Wheel Hub with Wheel Bearing
- The ABS sensor ring is installed in the wheel bearing
4 - Drive Axle
Overview - Rear Axle Speed Sensor
Front Wheel Drive

1 - Wheel Speed Sensor
- Right Rear ABS Wheel Speed Sensor -G44-/Left Rear ABS Wheel Speed
Sensor -G46-
- Removing and installing, refer to
→ Chapter "Right/Left Rear ABS Wheel Speed Sensor -G44-/-G46-, Removing
and Installing".
2 - Bolt
3 - Wheel Hub with Wheel Bearing
- The ABS sensor ring is installed in the wheel bearing
All Wheel Drive

1 - Wheel Speed Sensor
- Right Rear ABS Wheel Speed Sensor -G44-/Left Rear ABS Wheel Speed
Sensor -G46-
- Removing and installing, refer to
→ Chapter "Right/Left Rear ABS Wheel Speed Sensor -G44-/-G46-, Removing
and Installing".
2 - Bolt
3 - Wheel Bearing
- The ABS sensor ring is installed in the wheel bearing
Right/Left Front ABS Wheel Speed Sensor -G45-/-G47-, Removing and
Installing
Removing
- Disconnect the connector -1-
from the speed sensor wire and the speed sensor.
- Remove the bolt -2- and remove
the speed sensor from the wheel bearing housing.
Installing
Install in reverse order of removal. Note the following:
- Before inserting speed sensor, clean the inner surface of
the hole and coat the speed sensor all around with hot bolt
paste. For the correct hot bolt paste, refer to the Parts
Catalog.

Right/Left Rear ABS Wheel Speed Sensor -G44-/-G46-, Removing and
Installing
Removing
Vehicles with FWD:
- Disconnect the connector -3-
from the speed sensor wire and the speed sensor
-1-.
- Remove the bolt -2- and remove
the speed sensor from the wheel bearing housing.

AWD Vehicles:
- Disconnect the connector -1-
from the speed sensor wire and the speed sensor.
- Remove the bolt -2- and remove
the speed sensor from the wheel bearing housing.
Installing
Install in reverse order of removal. Note the following:
- Before inserting speed sensor, clean the inner surface of
the hole and coat the speed sensor all around with hot bolt
paste. For the correct hot bolt paste, refer to the Parts
Catalog.

Special Tools
Special tools and workshop equipment
required
- Brake Pedal Actuator -VAG1869/2-.

- Container -1- from the Brake
Charger/Bleeder Unit -VAS5234-

- Plugs from Repair Kit -1H0 698 311 A-

READ NEXT:
Overview - Front Brakes, 1LJ 1ZD Brakes
1 - Bolt
12 Nm
2 - Brake Rotor
Allocation, refer to the Parts Catalog.
Dimensions, refer to
→ Chapter "Brakes
Depending on the model for each brake caliper two vibration
dampers are installed.
1 - Bolt
10 Nm
Replace after each removal.
2 - Vibration Damper
Installed 2 on
SEE MORE:
Warm up cold tires to the minimum mounting temperature
Note
This applies also to ultra high performance tires
(height-/width ration smaller/same 45% and speed rating symbol
larger than/same as V).
WARNING
The minimum mounting temperature for a tire may not
be below 21℃
General Information
Vehicles with a High Voltage System (Hybrid Vehicles)
Extremely Dangerous Due to High-Voltage
The high-voltage system is under high-voltage. Death or serious
bodily injury by electric shock.
- Individuals with electronic/medical life- and health sustaining
machines i