joe1970 Posted November 30, 2010 Share Posted November 30, 2010 Question for those who are familiar with discovery 300 tdi. When Iam just ticking over around the doors the heaters on my discovery are hardly working even after they have had plenty time to heat up the heater gauge barely moves and there blowing out coldish air, soon as it gets on a motorway for a few mile the gauge goes up to half and the heaters are red hot this being my 1st discovery Iam not sure if this is the norm? Iam thinking if this is not the norm the thermostat could be stuck open? Quote Link to comment Share on other sites More sharing options...
ronnie_rotten Posted November 30, 2010 Share Posted November 30, 2010 i changed the 'stat in my 300 today. simelarly, mine would never heat up at tickover and then would only reach 1/3 on the guage after driving for a while. now it gets to halfway pretty quickly and blows a hell of a lot quicker. for the first time i've had to turn it down from full wack! big improvement for a quick job. Quote Link to comment Share on other sites More sharing options...
Typsey Posted November 30, 2010 Share Posted November 30, 2010 I agree with ronnie_rotten. Change your thermostat. Very easy job and well worth it. You will notice the difference in heater output almost immediately. I am sure someone will have written up a guide to the job in the technical archive. If I remember rightly they cost around £5.00 from Paddocks. Typsey Quote Link to comment Share on other sites More sharing options...
fozsug Posted November 30, 2010 Share Posted November 30, 2010 I agree with ronnie_rotten. Change your thermostat. Very easy job and well worth it. You will notice the difference in heater output almost immediately. I am sure someone will have written up a guide to the job in the technical archive. If I remember rightly they cost around £5.00 from Paddocks. Typsey http://forums.lr4x4.com/index.php?showtopic=10681 http://www.lrseries.com/shop/product/listing/5283/ERR3291-THERMOSTAT-300-TDI.html?search=300tdi thermostat&page=1 Quote Link to comment Share on other sites More sharing options...
Oil Leak Posted December 1, 2010 Share Posted December 1, 2010 Ditto.. Exactly the same symptons, changed the thermostat, job done, needle sits half way, heaters nice n warm :) Quote Link to comment Share on other sites More sharing options...
joe1970 Posted December 11, 2010 Author Share Posted December 11, 2010 Put a new thermostat in, job sorted Thanks for the replys. Quote Link to comment Share on other sites More sharing options...
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