Hello peeps Ive got a 2004 Audi a3 2.0 tdi bkd 140 and its loosing coolant at an alarming rate. I started up the car one morning and the coolant light came on. The level was at the minimum so topped it up and forgot it about it for the next month or so. Then yesterday the coolant light came back on so went under the hood and topped it up again to the max level. The coolant light turned off so went to start the car this morning and it came back on. Checked under the hood and low and behold the cars lost nearly half litre of coolant in one night. Ive checked on start up there is no white smoke and also under the car to see if there is any leaks but due to the wet weather it hard to see. Ive searched the forum and am dreading the fact that it might be the porous head issue or maybe a faulty egr cooler? Ive got a 90 mile trip to makes tomorrow so not sure whether to risk it and take a bottle of coolant with me to top up the car if the light comes on during the journey? Any suggestions?