WHY YOU BUY THESE REGULATOR? BECAUSE ITS 100 NEW AND ORIGINAL FOR BMW X5 THESE COME IN REAR LEFT DONT LOOSE TIME  AND PAY A LOT OFM ONEY ALSO DONT BUY AFTERMAKET REGULATOLR WITH POOR QUALITY AND HELP CONTINUE WORKING WELL YOUR WINDOW REGULATOR DONT WAIST YOUR MONEY IN DEALER AT HIGH PRICES! THANKS I HOPE I HELP WITH THIS SOLUTION!! "If you need buy in bulk quantitys send us messange, we have whole sales and you get a discount when you buy 10 or more of the same item"