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Old 20th March 2017, 16:37   #11
Mike Noc
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Just a thought. My IPK is the low line version, which I am quite happy with TBH. Would it be possible to utilise another of the already activated led such as the windscreen washer level which I never need as I never let it run down anyway.

Could I remove the led for the windscreen wash and then run a couple of jumper wires to the coolant level led which exists on the circuit board?

Would be interesting to see how far they got with this at the factory - the high line has an alarm for low level coolant on the diesels - it is listed in the handbook, so more than likely they would have allocated a ZCS code for it.

A case of finding someone in the know?
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Old 20th March 2017, 21:34   #12
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Would be interesting to see how far they got with this at the factory - the high line has an alarm for low level coolant on the diesels - it is listed in the handbook, so more than likely they would have allocated a ZCS code for it.

A case of finding someone in the know?
If anyone would know it would be Phil, but he has drawn a blank on this too.

Perhaps non European market T4 configuration for 75 particularly in hotter countries might have something especially for the petrol k models? I found that the USA Freelander 1 for instance can have the external temperature option enabled via T4 and the coolant level sensor too, although you have to hard wire both of them (which is the easy bit)

Last edited by Lovel; 20th March 2017 at 21:46..
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Old 24th March 2017, 14:46   #13
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Jules had managed to get the low coolant warning on a diesel IPK, might have been a lowline screen. Perhaps ask him, as the thread didn't say how he did it.

I also recall seeing a post by Jezzer1 a while ago in which he stated that some very very early did have a fully functioning coolant level sensor.

And there are photos in the Electrical library of nearby connectors which in the background show the prototype/pre-production white header tank fitted to a V6 with a sensor wired in.

If only we could join the dots and complete the system
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Old 24th March 2017, 18:42   #14
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I remember Mrs Jules seeing the alarm come up on the highline, but I didn't know Jules had replicated it.
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Old 24th March 2017, 19:41   #15
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Have pm'd Jules to see if he can shed some light on the matter.
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Old 25th March 2017, 08:20   #16
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http://www.the75andztclub.co.uk/foru...5&postcount=27

and

http://www.the75andztclub.co.uk/foru...9&postcount=19

So the sensor didn't actually work on early cars but the wiring was active.
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Old 25th March 2017, 09:25   #17
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http://www.the75andztclub.co.uk/foru...5&postcount=27

and

http://www.the75andztclub.co.uk/foru...9&postcount=19

So the sensor didn't actually work on early cars but the wiring was active.

Thank you for pointing us towards those Intriguing and tantalising posts. However the only logical contact pin on the back of the IPK is CO230-10 (maybe I'm wrong) which is an empty socket on my low line IPK. I have tried to short it out to ground and have found that the light does not come on at all, unless there is a delay built in or something before it comes on to stop spurious readings. In other cars where I have seen the sensor installed such as the 25/45 the light comes on with the ignition switch and then extinguishes after a few seconds.
My Freelander has the option to enable via T4 LCS codes, I still think that ZCS codes need to be enabled, again perhaps these would be found in a very early car and compared against later model ZCS codes. I have a few types of instrument packs to play with, and will see what I can find out over this weekend if possible.
Perhaps in the end I think will just have to use the windscreen washer circuit and place jumper leads to the LED on the coolant sensor light.
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Old 25th March 2017, 09:37   #18
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Perhaps in the end I think will just have to use the windscreen washer circuit and place jumper leads to the LED on the coolant sensor light.
Yes on both our 25 and 45 the light came on as a self test when the ignition was switched on.

Would have been nice to keep that function, but piggy backing from the washer light sounds like the way to go for now.

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Old 25th March 2017, 10:32   #19
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Default Success With Low Line IPK Coolant Warning Light

Success with Low Line IPK.

Just rigged up a little harness and have the coolant light working. I think the issue I had before when I tried this was that I did not wait long enough for the light to come. This feature is perhaps a built in time delay to remove potential spurious signals from the coolant level sloshing around in the tank.

Basically I inserted a contact pin in connector CO230 slot 10 which was empty, after 20 seconds the warning light came on.
So on the car itself I'll just extend pin 10 wire to the switch on the tank and then run an earth wire from there, and job should be a good un, and no need to worry about obtaining ZCS codes.

Now even more interesting is that I followed T-cuts idea about splitting the tank open, but this time I used a wood chisel and the lid came off quite cleanly, so that would make installing the sensor from the inside a real possibility. The material of the tank is PA66-GF30 so I will need to see what bonding agent is required.

I tried a high line IPK with line 10 grounded but unfortunately the message centre screen did not display any warning with the switch rigged up to toggle between the screens even after a waiting period.
Attached Images
File Type: jpg CO230.jpg (128.3 KB, 86 views)
File Type: jpg CO230_10.jpg (139.9 KB, 82 views)
File Type: jpg LowLineIPK LED Coolant.jpg (136.0 KB, 91 views)

Last edited by Lovel; 25th March 2017 at 11:45.. Reason: Clarity
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Old 25th March 2017, 13:17   #20
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It was never fitted, and you can blame BMW for that. My S reg has the black expansion tank. Their is a place for a reed switch to be fitted, and the float was supposed to sit inside with a magnet.
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