neil3728 Posted January 17, 2016 Share Posted January 17, 2016 Ever since I have owned my 110 the heater has been rubbish. more like an asthmatic blowing on the windscreen than anything. So when the heater fan stopped working it didn't make too much difference. Now the Mrs is complaining and I could do with a bit of heat on these cold mornings, but looking around there must be a better product than just replacing the old fan. How much heat does the eberspacher D2 kick out, could I use this instead to warm the car up and defrost the windscreen. Quote Link to comment Share on other sites More sharing options...
FridgeFreezer Posted January 17, 2016 Share Posted January 17, 2016 An eberspacher will melt your face compared to the defender heater - but a stock Defender heater should work well enough if it's actually set up correctly. I believe there's a post in the technical archive about checking & setting all the various flaps and things properly, worth a read, could sort the problem out for nothing more than an afternoon playing with flaps. Quote Link to comment Share on other sites More sharing options...
Ex Member Posted January 17, 2016 Share Posted January 17, 2016 Maybe try and fix the current one..... All is takes is a bit of mud in the fan housing to stop it. Clean it out, make sure the flaps are adjusted. Make sure your thermostat is not leaking. It should be pretty decent when running properly. No problem here to around -30 in a 90, maybe -20 in a 110. Quote Link to comment Share on other sites More sharing options...
neil3728 Posted January 17, 2016 Author Share Posted January 17, 2016 The fan is clear and moves very easily when pushed around, even with one finger, so I am thinking the motor is dead. I know its not the fuse as these have been swapped for a known good one already. Quote Link to comment Share on other sites More sharing options...
western Posted January 17, 2016 Share Posted January 17, 2016 Do this http://forums.lr4x4.com/index.php?showtopic=33481&st=0&gopid=323899entry323899 before spending out on a extra heating unit Quote Link to comment Share on other sites More sharing options...
neil3728 Posted January 17, 2016 Author Share Posted January 17, 2016 Thanks Western, that didn't end to well, attempted to take a little slack out of the fan control mechanism on the air box and snapped both the small holding bolt then the wire itself. Quote Link to comment Share on other sites More sharing options...
western Posted January 17, 2016 Share Posted January 17, 2016 oh dear that's not good, sort the cable & clamp. clamp & pinch bolt is item 15 in http://www.allbrit.de/UNI.cfm?PAGE=760853&SPRACHE=EN#15part number -- RTC5978 new cable for left hand slider switch is item 3 in same link, note various part numbers depending on last 8 digits of VIN/chassis number Quote Link to comment Share on other sites More sharing options...
neil3728 Posted January 17, 2016 Author Share Posted January 17, 2016 Thanks for the part numbers Western, I'll look at that in more detail when I have the time Work is killer at the moment and get some bits ordered. Quote Link to comment Share on other sites More sharing options...
neil3728 Posted January 17, 2016 Author Share Posted January 17, 2016 Thinking about it more, it might be easier to remove the heater unit to have a better look at it and to fix the bits i've broke. I won't get enough time now till Feb to have a good look at it, but does anyone have an easy guide on how to remove the heater unit I can follow when I do get the time. Quote Link to comment Share on other sites More sharing options...
AMB Posted January 18, 2016 Share Posted January 18, 2016 Heater on my 300Tdi was useless when I first got it, but a combination of flushing the matrix, lubricating and adjusting the cables made a vast difference. There's still too much air to the passenger side, though my wife does not agree with that assessment. Will wait for the summer to play with balancing the flow and hope that she doesn't notice once it gets cold again. Quote Link to comment Share on other sites More sharing options...
simonr Posted January 18, 2016 Share Posted January 18, 2016 Another often overlooked problem is the foam gasket between the heater box & bulkhead. These tend to rot / go manky and do not give a decent seal. If you replace with a new one (STC952) it makes a vast difference to the air-flow. If you're taking the box out anyway - you might as well change it at the same time. Si Quote Link to comment Share on other sites More sharing options...
Mo Murphy Posted January 18, 2016 Share Posted January 18, 2016 I'd like to supplement mine with a bilge blower, can they be used in conjuction with the existing fan as a bit of a turbo boost when required ? Mo Quote Link to comment Share on other sites More sharing options...
Snagger Posted January 18, 2016 Share Posted January 18, 2016 Another often overlooked problem is the foam gasket between the heater box & bulkhead. These tend to rot / go manky and do not give a decent seal. If you replace with a new one (STC952) it makes a vast difference to the air-flow. If you're taking the box out anyway - you might as well change it at the same time. Si Better still, make a copy out of camping roll mat, which is a denser seal and won't rot. Quote Link to comment Share on other sites More sharing options...
toenden Posted January 18, 2016 Share Posted January 18, 2016 Hi. When you do take the heaterbox out, have a look at the hole through the bulkhead. At least on a left steer model, the hole is only about 2/3 as big as the outlet of the heaterbox. Cutting the hole through the bulkhead apropriate made a big difference in both mine (a 90 and a 110). Regarding an eberspacher, I have a d1 in the 110 and it is sufficient to the point where the kids ask for less heat after half an hours running in 0 celsius :-). Really a nice thing to have. /Mads Quote Link to comment Share on other sites More sharing options...
neil3728 Posted January 18, 2016 Author Share Posted January 18, 2016 I plan on taking the heater out in Feb so will look at all the mods then and take my time to make sure its all in tip top working order. Heat was never an issue its the dead fan that's a problem now. If I need more heat later on I'll look again at the D2, but for now I think I could spend the money making the 110 look a little better so the Mrs will like the car. Quote Link to comment Share on other sites More sharing options...
western Posted January 18, 2016 Share Posted January 18, 2016 I'd like to supplement mine with a bilge blower, can they be used in conjuction with the existing fan as a bit of a turbo boost when required ? Mo pretty sure there's a thread in tech archive showing how to fit a bilge pump for extra air flow Quote Link to comment Share on other sites More sharing options...
Mo Murphy Posted January 18, 2016 Share Posted January 18, 2016 I've read that Ralph, I was just wondering if blowing air through the existing running fan would present any problems. Cheers Mo Quote Link to comment Share on other sites More sharing options...
reb78 Posted January 18, 2016 Share Posted January 18, 2016 Can't imagine it would create good flow Mo. Quote Link to comment Share on other sites More sharing options...
western Posted January 18, 2016 Share Posted January 18, 2016 doubt the existing fan would disrupt the airflow from a big bilge pump very much. Quote Link to comment Share on other sites More sharing options...
Aragorn Posted January 18, 2016 Share Posted January 18, 2016 Reading the original thread from 2010, it reads to me as though he retained the original fan and just piggy backed the blower on? Quote Link to comment Share on other sites More sharing options...
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