bob86 Posted July 6, 2011 Share Posted July 6, 2011 Got myself a sniff test kit because I think the coolant's dropping on my 300tdi Disco. Having never used one before can some one who has please tell me if this is a positive for exhaust gasses. Quote Link to comment Share on other sites More sharing options...
MJIbex Posted July 6, 2011 Share Posted July 6, 2011 I could well be wrong - but I thought they only worked on petrols. It's been a while, but 1's I used would go much greener than that. Quote Link to comment Share on other sites More sharing options...
longlandy Posted July 6, 2011 Share Posted July 6, 2011 doesnt look like it, but they can be very unreliable Quote Link to comment Share on other sites More sharing options...
bob86 Posted July 6, 2011 Author Share Posted July 6, 2011 Cheers gents. Looks like i'll just keep an eye on it and see if I really am loosing water. Its been idling a bit lumpy for a while and for the past week my cheapo chinese exhaust gas temp guage is showing hotter temps so i'm getting paranoid about things. Quote Link to comment Share on other sites More sharing options...
Les Henson Posted July 6, 2011 Share Posted July 6, 2011 Put fluid in the device - up to the level mark. Start the engine, remove the coolant filler cap, then press the tester into the cap hole. Squeeze the rubber bulb and release repeatedly. As you do this - air from the header tank is drawn through the blue fluid. Any exhaust gas/diesel vapour in the air will cause the fluid to change colour. Diesel fuel/exhaust gas, will make the fluid turn green. Petrol will make it go yellow. Les. Quote Link to comment Share on other sites More sharing options...
GBMUD Posted July 7, 2011 Share Posted July 7, 2011 It seems to look greener than the fluid in the bottle to me. Did the kit not come with any directions? Chris Quote Link to comment Share on other sites More sharing options...
bob86 Posted July 7, 2011 Author Share Posted July 7, 2011 Yeah its got instructions how to use it but a colour swatch type thing would have been nice for dummys like me. Like you say it looks greener but could still be blue if that makes sense. Anyway I tried it again this morning and it turned almost Land Rover green. The header still had water in but the plug in the thermostat housing took half a gallon! Thankyou everyone for all your help. Quote Link to comment Share on other sites More sharing options...
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