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curbs and parking assist
We just bought a 2020 BMW Z4 3.0 and it has parking assist with 4 front ultrasonic sensors, 4 back and 4 side sensors. I have it set to showing parking assist when approaching something automatically, but it doesn't. Moreover even when I turn on the assist it detects objects all around, but it can't detect a 6" curb in front. The front bumper of the Z is super low and if it wasn't rubber on the bottom I would have dinged it. I can't believe with 4 front sensors it can't see a 6" curb. On the other hand it easily detects a 1" garage door bottom lip in reverse so I would think the front sensors should be able to see the curb. The dealer says it may not see curbs in front. Is this true? Can others detect a front curb? I am thinking bad sensors as even if I put my hand over a front sensor it doesn't detect it. It detects big front thing like a wall, but no curb. Any suggestion and advice appreciated.
Thanks
Bill Eldred
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