BASETech 2162728 Mode D'emploi page 23

Drill the holes for the four ultrasound sensors with the enclosed 21 mm drill.
After drilling, smooth the holes with a file or a sharp blade.
Inserting the ultrasound sensors
2
The ultrasound sensors must always be mounted horizontally, otherwise measuring will be faulty.
With slanted installation sites, you can use the enclosed distancer rings (7) for compensation.
Press the sensors in the right direction into the openings until these lie flush on the bumper.
Make sure to connect the ultrasound sensors in the right sequence. Start with sensor
A on the rear left (also see illustration „individual parts"). If the sequence is mixed up,
the direction assignment of the LED display (3) is not correct.
Installing lines and components
3
Guide the connection cables of the ultrasound sensors from the
outside through the bumper to the trunk opening. Carefully place
the cables inside so that no moisture penetrates the inside of
the car.
Attach the control unit with the enclosed adhesive pad. A suitable
place is the side wall in the watertight trunk close to a taillight.
Make sure that the connection lines of the sensors reach up to
the sensor units.
Install the connection cables of the sensors in line with the
connection diagram in "Individual parts".
When installing the cables in the sides of the car etc., make sure that you do not
damage any safety-relevant equipment (e.g. side airbags).
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