Hello. First post. Long time lurker and appreciator of these forums.   Bought a used 2009 Octavia estate 1.9tdi Yesterday (!) to change up from my old faithful 2003 Octavia 1.9sdi.    Really like the car, except it has immediately sprung (or already had) a coolant leak. Former owner isn't replying to messages, unsurprisingly.    Symptoms: light on at end of long drive, and coolant tank empty again after refilling sitting in street all night. Refill again, but coolan