About a month ago my girlfriend noticed that the coolant light was coming on in her 2003 Golf TDI 1.9L ALH. I topped off the coolant, then two weeks later, same issue. Since I was doing an oil change on it today, I figured I would check out if I could see any leaks. The first thing I noticed was that a few of the torx screws on the driver's side of the belly pan had some sort of viscous rust-colored fluid on them. Not pink, but maybe if G12 goes through rusty areas it takes on a different color. After removing the belly pan, I noticed that there was some more of this liquid on the bottom section of the small metal pipe (I believe it is for coolant) that goes around the whole engine. When I look down on the engine I can see that quite a bit of fluid has gathered on the metal "shelf" above the flywheel. I have attached some pictures to help describe this "shelf". The second picture is a close up from the first angle, and the third picture is looking in from behind the driver's fender. Does anyone have any idea what could be leaking on this side of the engine? I know a lot of coolant leaks happen at the expansion tank and the water pump, but I checked over there and it's totally dry. Furthermore, when the expansion tank is opened I can tell the system is pressurized. I looked at the same area in my car (2003 Jetta TDI) and it was bone dry, so that rules out the possibility of it just being water from the road since we have been driving in the same conditions (roads have been dry for a few days).