BMW 320d Touring F31 Blind Spot Monitor Sensor BSM Sonar 6632-6881633-01 Set of 2 Left and Right Used Removed from a vehicle with approximately 90,000 km from 2016. 6632-6881633-01 6632-6881632-01 This product has not been tested. However, we do not sell items that have been subjected to significant impact. We only accept initial defects. Please contact us before confirming receipt. We will process a cancellation after the item is returned. The buyer is responsible for return shipping costs. We cannot provide support after the receipt has been confirmed. Thank you for your understanding.