Mellbree 2Pcs Fiber Optic Loop, Female and Male Fiber Optic Bypass Loop Adapter Connector Diagnostic Device Tool Compatible for Benz Audi Mercedes BMW VW Porsche Most Optical System

Works exactly the same as the ones that are so much more expensive. Perfectly priced and functional.

المنتج ممتاز لكن لم يتناسب مع السيارة التي لدي

Tengo una BMW X5 2009 E70 segun la explicacion dice que funciona y No funciona no sirve no gasten si dinero

Arrived as described and works perfect

Bought a used 2016 Volvo xc60 for my daughters first car. We quickly realized that the battery was draining 30-40% just by sitting for one day. The used car dealer replaced with a fresh battery... But the issue persisted. My daughter had already fallen in love with the car... So returning it was out of the question. I thought I could figure it out myself. Spent hours searching how to find battery drain issues. Hours using a multimeter and testing all the fuses. Nothing... Nothing showing power draw. It didn't make sense. Two different mechanics told me this is hard to diagnose and they would charge me $220/hr... That they could spend up to 3 hours and still not find the issue. The thought of spending $600+ to look for an issue on a car that was worth 9k was mind boggling to me. So I bought a battery maintainer and just kept charging the battery for months. But the battery was getting weaker from the repeated large drops in charge. I thought I'm either going to have to pay a mechanic or replace with a fresh battery every 9-12 months. Then I found out that these cars had an issue with the SiriusXM module draining the battery while it's parked. The solution was to pay Volvo $200 for a software update or to bypass the module is this fiber optic bypass loop. 30 mins and $10 later .. the battery charges from the alternator while driving and holds it charge over night!!! Wow! Problem solved .. saved 200-660 dollars easily! I'm so happy.