2012 mk6 relay 109. The problem with black relay 109 was bad soldering. When you turn the key, exactly what happens. This relay controls power to the ECU and prevents the glow plug light from coming on at all during failed restarts. See other VW Polo: We look at the most common problems and issues that crop up on the VAG group 1. Here you will find fuse box diagrams of Volkswagen Polo 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016 and 2017, get information about the location of the fuse panels inside the car, and learn about the assignment of each fuse (fuse layout) and relay. So as an emergency road repair, you can jumper the fuse connector from fuse 12 to fuse 28 and bypass relay 109 altogether. Some of the diagrams are a little squished from being fit to page. There are also a lot of icons/links throughout the pages that. So it seems power is not passing through the relay, it is not clicking either. Price and other details may vary based on product size and color. qewy kjru hjwf exefa zuyn wiotai frhq wcpkzx fhhp ztwgx