 | Home > Td5 > VDO Water Temperature Gauge |
 
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| geobloke Member Since: 06 Nov 2012 Location: Nottinghamshire Posts: 4410  
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Well. That didn't work...
  
So I bought a VDO water temperature gauge (with numbers) to replace the standard TD5 unit (with no numbers) thinking that there is a good chance it will be a straight swap... Nope! Turns out the LR TD5 water Temp Sensor is not compatible with this gauge. Actually surprised me considering the VDO nature of the LR gauges. Guess I will have to think about fitting an auxilary sensor in the coolant system to get this working...  Click image to enlarge Click image to enlarge Click image to enlarge Gauge reading Click image to enlarge Nanocom reading...  Oh well... So close, but no cigar... |
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7th Apr 2017 4:22pm |
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| roel Member Since: 08 Aug 2009 Location: Lelystad Posts: 2039  
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On the td5 the gauge is ECU controlled, so no direct connection with the sensor. Roel
1984 90 2.5 na Diesel - RR V8 (1994-2001) 1997 Camel Trophy Discovery 300TDI (2001-2009) 2005 G4 Discovery III 4.4 V8 (2008-2018) It's gone but it still hurts. 2003 90 Td5 (2009-now) |
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8th Apr 2017 4:02pm |
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| geobloke Member Since: 06 Nov 2012 Location: Nottinghamshire Posts: 4410
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That'll be why then. Worth the try. Sensor on order to get it working, love numbers on gauges. Somehow seem a bit pointless without them, no?!
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10th Apr 2017 7:39pm |
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| miker Member Since: 13 Sep 2015 Location: Surrey Posts: 1763 
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Numbers on gauges make people worry! The normal gauge basically indicates "cold, warming up, normal, Oh crap"
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10th Apr 2017 7:46pm |
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| geobloke Member Since: 06 Nov 2012 Location: Nottinghamshire Posts: 4410
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10th Apr 2017 8:46pm |
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| roel Member Since: 08 Aug 2009 Location: Lelystad Posts: 2039
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That's correct. I see the first half off the gauge working but never seen 3/4-ers hot. It is working temp and maybe a little warmer and then straight to very hot. (and reduced power) Roel 1984 90 2.5 na Diesel - RR V8 (1994-2001) 1997 Camel Trophy Discovery 300TDI (2001-2009) 2005 G4 Discovery III 4.4 V8 (2008-2018) It's gone but it still hurts. 2003 90 Td5 (2009-now) |
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11th Apr 2017 8:25am |
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| geobloke Member Since: 06 Nov 2012 Location: Nottinghamshire Posts: 4410
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Right sensor fitted
 http://www.defender2.net/forum/topic53859.html |
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15th Apr 2017 6:16pm |
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| fourwzzy Member Since: 27 May 2018 Location: Moscow Posts: 2 
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What is part number of THIS gauge? Can't find anything with td5 style white arrow, not red!
Thank you! |
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27th May 2018 9:53pm |
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| achuakh Member Since: 12 Apr 2012 Location: Singapore Posts: 158  
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If it does move but doesn't match, you can change that in the ECU to make it match.
Well that does require some detail on the reference voltage to that of the temperature on the gauge and it can all be resolved. You just need to adjust the temperature gauge settings in the ECU to make it do what you want. On a Td5, from 88 to 105 deg, the ECU drive to the gauge is programmed not to move, so you don't get alarmed, but it goes up like a rocket after 105 to 140, which is way too late. So i've actually adjusted the table in the ECU to make sure the gauge moves during the climb between 88 to 105 to make sure it's more realistic. So back to your issue, if it's moving, it can be resolved, but you require some reprogramming of the ECU to take care of it, but it's not very easy to do. The Td5 will reduce the amount of fuel based on a multiplier factor at certain temperatures as well. So you only want to correct for the gauge reading but not the ADC value from the temperature sensor. Hope it make sense. From the land of the most expensive land rover defenders on planet earth. At �125k for a XS 110 csw and you get to own it only for 10yrs! Please find me a good reason to stay on this island. Last edited by achuakh on 13th Jul 2018 2:32pm. Edited 1 time in total |
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13th Jul 2018 9:53am |
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| Martin Site Admin Member Since: 02 Apr 2007 Location: Hook Norton Posts: 6604 
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If you want to change the Td5 gauge the best thing to do is leave the original sensor in place (the ECU uses it as part of the fuelling and start strategies).
Add another sensor wired directly to your chosen gauge - then you can use the correct matched sensor for the gauge. You can get pipes with a sensor boss ready fitted/tapped - add this to the top hose. 1988 90 Td5 NAS soft top
2015 D90 XS SW |
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13th Jul 2018 10:03am |
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| miker Member Since: 13 Sep 2015 Location: Surrey Posts: 1763
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Interestingly my temp gauge has recently developed an inverse relationship with the throttle pedal. The harder I press the pedal, the lower the gauge reads! Nanocom still reads normally though...
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14th Jul 2018 7:24pm |
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| fourwzzy Member Since: 27 May 2018 Location: Moscow Posts: 2
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guys what is part number of topicstarter's vdo gauge? looking for exac same model with white arrow, not red
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29th Mar 2019 9:40pm |
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| geobloke Member Since: 06 Nov 2012 Location: Nottinghamshire Posts: 4410
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Hi Fourwzzy. The gauge has the following part number inscribed in to it;
310.284/8/3 VDO 12v 02.95 Hope that helps |
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8th Apr 2019 8:35pm |
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| ericvv Member Since: 02 Jun 2011 Location: Near the Jet d'Eau Posts: 5816  
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Here’s an example. Exists in various diameters to suit specific coolant hoses. https://www.ebay.co.uk/itm/32MM-Car-Water-...Swq4la8-xr You never actually own a Defender. You merely look after it for the next generation. http://youtu.be/yVRlSsJwD0o https://youtu.be/vmPr3oTHndg https://www.youtube.com/watch?v=_GtzTT9Pdl0 https://www.youtube.com/watch?v=ABqKPz28e6A https://www.youtube.com/watch?v=rLZ49Jce_n0 https://www.youtube.com/watch?v=XvAsz_ilQYU https://www.youtube.com/watch?v=K8tMHiX9lSw https://m.youtube.com/watch?v=dxwjPuHIV7I https://vimeo.com/201482507 https://www.youtube.com/watch?v=ZSixqL0iyHw |
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9th Apr 2019 4:02am |
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