Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Acoustic warnings
The acoustic warnings are emitted by the M-ASK via the mid-range loudspeaker.
If an object is detected by 2 ultrasonic sensors, the loudspeaker closest to the object is actuated. The midrange loudspeaker in the left/right-hand front doors or the mid-range loudspeaker on the left/right-hand sides of the rear shelf can be actuated.
If an object is detected by 3 ultrasonic sensors, the mid-range loudspeakers on the left and right-hand sides are actuated together.
The smaller the distance to the object, the faster the sequence of acoustic warning tones.
A distance of less than approx. 25 centimeters is indicated by a continuous tone.
The warning tone switches off as soon as the vehicle moves away from the object.
If the vehicle is moving directly towards a wall, the acoustic warning tone will be switched off after approx. 3 seconds so that it does not distract the driver. If the vehicle continues to approach the wall, the warning will be reactivated.
Effective range for acoustic warnings:
- approx. 60 centimeters for the ultrasonic sensors at the two corners of the front bumper
- approx. 70 centimeters for the two middle ultrasonic sensors in the front bumper
- approx. 60 centimeters for the ultrasonic sensors at the two corners of the rear bumper
- approx. 150 centimeters for the two middle ultrasonic sensors in the rear bumper
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.