TD5 Coolant/Warming Up Issue

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bankz5152

bankz5152

Well-Known Member
Posts
9,324
Location
South London/North Kent
Ive got an 04 D2 TD5 with what seems like an issue.

It warms up fine, but soon as I stop in traffic or park up for a couple minutes temp drops off almost straight away. From 80° to about 60°

Almost as if its struggling to keep temperature.

Its had a new nissens rad, new genuine stat, coolant flush new britpart fan
 
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I don't have experience of this but what I've read in the forums, temperature dropping in traffic is due to low coolant level, also it may not be applicable the Nissen radiators will run cooler due to being alloy and plastic.

The temperature you state, is that cabin temp & fahrenheit or celsius ?
 
bankz5152 said:
So took the fan off today.

Warms up quicker (obvs) also temp stays stable
Click to expand...

Is it normal to have to remove the viscous fan to achieve this? I am having a similar issue on my D2 (brand new genuine LR thermostat, very new OEM viscous fan) and was also considering removing the fan to help maintain a good running temperature, but I can't help thinking it's not normal to have to do that and that there might an issue somewhere. Ambient temps recently have been -5 to 0*C but not really that cold in comparison to some places
 
Have you got a proper temp gauge or the std lr gauge?
I would say your temp drop is okay depending on outside temp and how hard the car is working.
Even my d3 gauge dropped down yesterday, and that was after 5 miles of town driving.
 
Stack coolant gauge reading in the same place as the stock gauge. Readings tested against nanocom so accurate.

I only ask if this is normal, well LR normal as my 110 never did this, nor did my 90.

Unless the particular TD5 is bloody efficient at cooling I feel somethings a miss. Or maybe im paranoid :confused:

Even after a an hour on the motorway, temp sitting at 85 - 95ish as it should. If I stop for fuel say temp has droped to 60

I did wonder if the fan was locking on but tried two fans, same result. Also been this way for a while, not just the cold weather.

Annoyingly cant quite remember if it was doing this when I bought it, since then the rad (pin prick crack) and stat where changed. Soon after that I noticed the temp fluctuations, which I only noticed because I watched the coolant gauge actually move :eek: never seen them move up and down to represent an actual temperature
 
bankz5152 said:
Stack coolant gauge reading in the same place as the stock gauge. Readings tested against nanocom so accurate.

I only ask if this is normal, well LR normal as my 110 never did this, nor did my 90.

Unless the particular TD5 is bloody efficient at cooling I feel somethings a miss. Or maybe im paranoid :confused:

Even after a an hour on the motorway, temp sitting at 85 - 95ish as it should. If I stop for fuel say temp has droped to 60

I did wonder if the fan was locking on but tried two fans, same result. Also been this way for a while, not just the cold weather.

Annoyingly cant quite remember if it was doing this when I bought it, since then the rad (pin prick crack) and stat where changed. Soon after that I noticed the temp fluctuations, which I only noticed because I watched the coolant gauge actually move :eek: never seen them move up and down to represent an actual temperature
Click to expand...

As far as I know my D2 Td5 has the original radiator and mine is the same. Seems to be very good at cooling!! I've changed the fan for an OEM one, new genuine thermostat, new water pump. I had a lower temp thermostat fitted before which ran around 82*C, I don't remember the temp dropping with that one but with the genuine LR one it will just about get up to the low 90's then start dropping when cruising. I'm going to remove the fan and see how it goes. I've got one of the Chinese Joying radio heads fitted and I run the Td5 Tester app (https://github.com/hairyone/TD5Tester) to monitor. There was no temp stamped on my genuine thermostat, it just "seems" as though the stat is stuck open.
 
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