Hi All

Have borrowed a mk3 for a couple of weeks with the intention of purchase , has done a few k's 200 and lots of bits renewed and seem to run like a dream but after a feww days of not driving the car won't start like the battery is low, only 6 months old. It happened again last night as we were delivering the car to its owner and was running and sounding like a tractor on only 3 cylinders really rough, have had a bit water out of the exhaust also on start up. Is this normal and what could it be flattening the battery? Dirty fuel or spark problem with the idle , but the battery thing has got me. Halfway to our destination after thinking the engine was going to die it came good, Maybe distributor or what I don't know, it had rained alot, does the ecu ever get wet and do this sort of thing
cheers Holger