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Got my first red triangle warning light!!!
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mulletma5ter
 


Member Since: 23 Oct 2020
Location: Cambridgeshire
Posts: 46

Wales 2012 Discovery 4 3.0 SDV6 HSE Auto Nara BronzeDiscovery 4
Got my first red triangle warning light!!!

Not 20 miles into driving the new ride, a red triangle flashes up on the dash. Great. Here we go.

Says coolant level low. Pulled over, plenty of coolant (granted while “warm”). Engine temp stays steady, so not too worried. Or should I be?

Looking through forum it seems common, so less worried again.

Ordering replacement bottle now. Searching for YouTube instructions. This is gonna be fun.
  
Post #225090012th Sep 2021 10:39 am
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ianm27
 


Member Since: 02 Jun 2016
Location: Hertfordshire
Posts: 2154

England 2012 Discovery 4 3.0 SDV6 GS Auto Orkney GreyDiscovery 4

I would suggest buying a code reader, a lot of people on here prefer the GAP IID bluetooth or the Autel

https://www.disco4.com/forum/iidtool-help-vf100.html

https://www.disco4.com/forum/autel-bluetoo...84835.html

When things go wrong it is always best to get the codes read as this will give a pretty clear indication of what is wrong and reduces alot of guess work Smile
 Uncle Ray's spare wheel protector
Limo Tint
Blackvue front & rear dashcam
Cruise control switch pack
Bodsy's remote for FBH 
 
Post #225091612th Sep 2021 12:14 pm
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mulletma5ter
 


Member Since: 23 Oct 2020
Location: Cambridgeshire
Posts: 46

Wales 2012 Discovery 4 3.0 SDV6 HSE Auto Nara BronzeDiscovery 4

Yes, that is the first thing on the shopping list, or was until this warning light popped on.

I have a colleague that has one to check the code until I get me own.

Provided the temp doesn’t go wild and the coolant isn’t under the levels it should be safe to drive, right?

*im an IT nerd with very basic mechanical understanding, though ready to learn fast. Thankfully I have around £9000 change from selling my Kia Sorento and buying the Disco
  
Post #225091712th Sep 2021 12:20 pm
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mulletma5ter
 


Member Since: 23 Oct 2020
Location: Cambridgeshire
Posts: 46

Wales 2012 Discovery 4 3.0 SDV6 HSE Auto Nara BronzeDiscovery 4

Aaaaaannnnnnddddd, the error is on solid today. looks like I'm losing coolant quick too.

Got a buddy helping me find the hopefully easy to remedy issue

Baptism by pink liquid I guess.
  
Post #225108513th Sep 2021 12:55 pm
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ianm27
 


Member Since: 02 Jun 2016
Location: Hertfordshire
Posts: 2154

England 2012 Discovery 4 3.0 SDV6 GS Auto Orkney GreyDiscovery 4

It's a D4 - nothing is easy Rolling with laughter

Hopefully it is something simple and cheap(ish) to fix Thumbs Up
 Uncle Ray's spare wheel protector
Limo Tint
Blackvue front & rear dashcam
Cruise control switch pack
Bodsy's remote for FBH 
 
Post #225109813th Sep 2021 2:17 pm
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James W
 


Member Since: 27 Mar 2008
Location: Wirral, UK
Posts: 3056

United Kingdom 

Are you sure you're actually low on coolant? The sensor is a very common fault caused by the float deteriorating, requiring a bottle replacement. It's tricky but DIY-able. I did mine on the drive.

Are you seeing actual loss in level and is it dripping out?
 D4 XS, gone, much loved, never forgotten
2018 FFRR SDV8 Autobiography - WTF does this button do 
 
Post #225109913th Sep 2021 2:23 pm
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mulletma5ter
 


Member Since: 23 Oct 2020
Location: Cambridgeshire
Posts: 46

Wales 2012 Discovery 4 3.0 SDV6 HSE Auto Nara BronzeDiscovery 4

Yesterday after the first drive I was banking on it being the sensor/tank issue, as the tank seemed to have fluid. Drove to work this morning and it had the error the entire way. Checked levels after it cooled, it was empty. Topped it up, ran it. Empty again. Telltale pool underneath.

Long story and 5l of antifreeze later, my buddy (ex military aircraft mechanic) assisted with pressure testing the system. Finally found one hose whose clamp wasn’t tightened, and it was just Censored out




Eventually righted it and no leak, no error.

What a ride.
  
Post #225111713th Sep 2021 3:56 pm
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James W
 


Member Since: 27 Mar 2008
Location: Wirral, UK
Posts: 3056

United Kingdom 

Great fix - nice work Thumbs Up

Next time it happens it probably WILL be the float sensor Laughing
 D4 XS, gone, much loved, never forgotten
2018 FFRR SDV8 Autobiography - WTF does this button do 
 
Post #225112713th Sep 2021 6:14 pm
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kajtzu
 


Member Since: 10 Aug 2017
Location: Helsinki
Posts: 6538

Finland 2005 Discovery 3 4.4 V8 HSE Auto Cairns BlueDiscovery 3

Spinning it positively you should now have the one part (bottle), which tends to be the root cause most times, as a spare Thumbs Up Laughing
  
Post #225112913th Sep 2021 6:18 pm
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mulletma5ter
 


Member Since: 23 Oct 2020
Location: Cambridgeshire
Posts: 46

Wales 2012 Discovery 4 3.0 SDV6 HSE Auto Nara BronzeDiscovery 4

No doubt,

I have taken it all as a positive TBH. I have learned so much researching and finding the fault, troubleshooting in an organized manner etc. If it had resulted in days of no car or thousands of cash, I may have felt differently.

But this morning I drove to work with zero warning lights, and all it took was a bit of my time.

Overall it was the finest drive of my life.
  
Post #225118014th Sep 2021 5:38 am
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ianm27
 


Member Since: 02 Jun 2016
Location: Hertfordshire
Posts: 2154

England 2012 Discovery 4 3.0 SDV6 GS Auto Orkney GreyDiscovery 4

Great result Thumbs Up

Occasionally, very occasionally the fix is a cheap one Rolling with laughter
 Uncle Ray's spare wheel protector
Limo Tint
Blackvue front & rear dashcam
Cruise control switch pack
Bodsy's remote for FBH 
 
Post #225163016th Sep 2021 9:53 am
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