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20th July 2022, 20:22 | #1 |
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Rover 75 Join Date: Sep 2018
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Useless temp guage
I have yet to see the temperature guage register anything but normal once the engine has warmed up on my 1.8t. This applied even when loosing all coolant due to a split hose. Surely especially during this warm weather the guage should rise slightly at times. Is there a way around this? As it is the guage is useless!
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20th July 2022, 20:31 | #2 |
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rover 75 1.8 vvc club se wedgwood blue Join Date: Aug 2009
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https://www.the75andztclub.co.uk/for...d.php?p=479038. Use this on board display
or a hans gauge/ separate gauge Last edited by suzublu; 21st July 2022 at 09:28.. |
20th July 2022, 20:35 | #3 |
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You can always drive with the diagnostic temp display on. It's quite instructive to do regularly and see exactly what the engine is doing in different driving conditions.
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20th July 2022, 20:56 | #4 |
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Useless temp guage
I didn't know about this! Many thanks
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21st July 2022, 08:39 | #5 | |
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Rover 75 2.5 Connoisseur Auto (1999) Dealer launch model. Join Date: Mar 2007
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Some info on the "useless" temp. gauge
Hello Don,
Here is the guide to displaying the actual coolant temperature (test 7.0) in your instrument pack. It's a good idea to check it now and again. Quote:
A bit of automotive history might be helpful to explain the "useless" temperature gauge. When engines had continuously running mechanical radiator fans the coolant temperature was automatically regulated when road speed fell. Even so, their gauges had a form of "damping" which slowed the reaction of the needle to temperature fluctuations. This could result in the driver observing at times a slight increase, as you've said Don. With the change to electrically driven fans, modern engines have no established forced cooling when the car's road speed falls so the coolant temperature rises rapidly. If a more accurate temperature gauge was fitted in these circumstances the driver would be alarmed at the engine's temperature cycling between about 93˚ and 104˚ as the car encountered different road conditions (your 1.8T electric fan doesn't turn on until 104˚ is reached). You can imagine that dealers would be overwhelmed by disgruntled owners and the marque would be branded as unreliable. That's why manufacturers limit the indications that the gauge can give. Simon
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"Whatever is rightly done, however humble, is noble." Sir Henry Royce. Last edited by SD1too; 21st July 2022 at 08:44.. |
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21st July 2022, 09:26 | #6 |
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rover 75 1.8 vvc club se wedgwood blue Join Date: Aug 2009
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Already put the link in my reply Simon 👍
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21st July 2022, 09:50 | #7 |
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So you have Ron, my apologies.
I didn't notice it lurking above the massive picture of burr walnut trim and the soft leather gearstick gaiter. Simon
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21st July 2022, 10:03 | #8 | |
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Quote:
The temperature indicator fitted to the 75 serves its purpose - which is to indicate sustained temperatures under or over the 'normal operating' range. A lot of modern cars do not have any temperature indication other than highlighting when an exceptional state occurs. If the owner wants a continuous readout of engine temperature, the solution is to a) fit one such as shown in member subulzu's post b) use the diagnostic diplay or c) purchase a generic handheld code reader for circa £20. For the reasons explained in Simon's post, the information from such continuous monitoring devices would need to be used judiciouly.
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Member of the Peasant Underdog Class, Grade 1 Last edited by MSS; 21st July 2022 at 10:28.. |
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21st July 2022, 17:13 | #9 |
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I've been using my phone and Torque Pro having recently had a bit of a saga with my KV6 coolant. I've searched the forum and it looks like there was a digital temp gauge a while back which would alert you if it went over maximum but from what I can gather it was a bespoke product and I can't find anything similar. I like you am entirely paranoid about my coolant temperature and would also like a solution so will follow this thread closely. I presume the talk around the instrument pack means you could display it on the digital screen but as both of mine are entirely unreadable and quite expensive to repair it's not really a solution for me. Plus I'd much rather just have a dedicated gauge or digital readout.
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21st July 2022, 17:19 | #10 | |
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rover 75 1.8 vvc club se wedgwood blue Join Date: Aug 2009
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Quote:
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