Hi All. Long time lurker, first time poster! I have a 2007 Tourer that seems to have a parasitic battery drain. I've done some tests but am coming up short, and would appreciate any input! Bought car a few weeks ago. Left car on the drive for 2 weeks, battery completely dead. So much so that the alarm went off when jump starting. Ran car for an hour to recharge the battery as I didn't have a stand alone battery charger. Assumed I'd done something that caused the drain. At the time, the power tailgate failed, gave the PTG light on the dash. disconnected the battery and reconnected, all reset and working again. 3 days later, battery too low to start car, but enough to light dash etc. Jump started and took for a long drive. Then wouldn't last for more than a day or so. Assumed battery was goosed. Replaced battery on Wednesday. Made sure it was fully charged and got a multi-meter to start testing. Battery at 12.6v, disconnected the negative lead and connected the multi-meter to look for parasitic drain. On connection I got 0.3a, which dropped to 0 after a second or two. If I made the car drain by opening a door, the meter read an output, so the meter was doing its job but couldn't get a consistent drain to register. Car has a towbar, aftermarket reversing sensors and an aux input cable fitted. All now disconnected in-case they were the cause. Within 12 hours the battery had dropped to 12.3v, still enough to start the car but obviously dropping fast. Alternator test shows 14.2v at idle, 13.8v at full load - lights, ac, radio, fog. So alternator seems OK in the output. Seems like a pretty significant drain, and more than just an interior lamp causing it. Anyone got any ideas on what it could be? Could the power tailgate ECU drain this quickly? Thanks everyone!!