BMW G12 - Parking Maneuver Assistant; Parking Maneuver Assistant System Components

G12�Driver�Assistance�Systems
16.�Park�Distance�Control
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16.7.�Limits�of�the�system
Due�to�the�physical�limits�during�the�ultrasonic�measurement,�obstructions�may�not�be�detected�by�the
Park�Distance�Control�system.�Several�examples�of�this�are�shown�below:
• if�the�objects�are�thin�or�wedge-shaped
• when�the�objects�are�low
• when�objects�that,�due�to�their�shape,�have�corners�and�sharp�edges
• with�snow
• if�the�objects�have�a�porous�surface.
A�warning�may�also�be�displayed�although�there�is�no�obstruction�in�the�detection�range.�This�may�be
the�case�in�the�following�situations:
• when�it�is�raining�heavily
• if�the�sensors�are�heavily�soiled�or�iced�over
• if�the�sensors�are�covered�with�snow
• if�the�street�surface�is�rough
• if�there�are�bumps,�e.g.�speed�bumps
• in�large�right-angled�buildings�with�smooth�walls,�e.g.�underground�car�parks
• due�to�heavy�exhaust�gas�fumes
• due�to�other�ultrasound�sources.
To�ensure�the�ultrasonic�sensors�remain�fully�operational,�they�must�be�kept�clean�and�free�of�ice.
When�cleaning�the�sensors�using�a�high�pressure�cleaner,�avoid�direct�and�sustained�contact�with�a
high-pressure�water�jet.�Furthermore,�when�using�high�pressure�cleaners,�a�distance�of�at�least�30cm
from�the�sensors�must�be�maintained.
The�Park�Distance�Control�cannot�replace�the�driver's�personal�judgement�of�the�traffic�situation.�Also
check�the�traffic�situation�around�the�vehicle�by�looking�around,�otherwise�there�may�be�a�risk�of�an
accident�as�a�result�of�road�users�or�objects�which�lie�outside�the�detection�range�of�the�Park�Distance
Control.�Loud�sound�sources�outside�and�inside�the�vehicle�could�drown�out�the�PDC�signal.