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WON'T START :(
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M4rtin
 


Member Since: 03 Aug 2024
Location: Kent
Posts: 2

United Kingdom 2008 Discovery 3 TDV6 HSE Auto Buckingham BlueDiscovery 3
WON'T START :(

Right guys I went out to the D3 earlier and it wouldn't start. Wouldn't do nothing. Doors kept clunking like there were constantly unlocking and hazards flashing. Radio and sat nav screen would come on for couple of seconds then go off. And HDC message came up.

Am I right in thinking it's the dreaded instument cluster failure?  
Post #23744893rd Aug 2024 9:42 pm
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Marshall8hp
 


Member Since: 05 Dec 2022
Location: Townsville
Posts: 34

Australia 2008 Discovery 3 TDV6 S Auto Alaska WhiteDiscovery 3

Dead or dying battery?  
Post #23744944th Aug 2024 1:44 am
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gstuart
 


Member Since: 21 Oct 2016
Location: kent
Posts: 14136

United Kingdom 2005 Discovery 3 TDV6 Base 7 Seat Auto Java BlackDiscovery 3

Plus 1 in checking the battery, leads and earths first   
Post #23744984th Aug 2024 6:41 am
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M4rtin
 


Member Since: 03 Aug 2024
Location: Kent
Posts: 2

United Kingdom 2008 Discovery 3 TDV6 HSE Auto Buckingham BlueDiscovery 3

Yesterday first of all I thought it was battery so I connected a boost pack to the battery and it still wouldn't start  
Post #23745084th Aug 2024 7:51 am
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Gary_P
 


Member Since: 03 May 2016
Location: Kent
Posts: 1668

Ukraine 2016 Discovery 4 3.0 SDV6 HSE Auto Corris GreyDiscovery 4

It sounds electrical. As mentioned above, check the earth lead connection to the body from the battery . Heavy duty jump start cable can be used as a temporary solution.
Good luck Gary
-------------------------------------------

Discovery 4 HSE 2016MY  
Post #23745104th Aug 2024 8:04 am
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Kernowek
 


Member Since: 24 Oct 2023
Location: Cornwall
Posts: 14

United Kingdom 2005 Discovery 3 TDV6 S Auto Bonatti GreyDiscovery 3

I had the exact same issue last year: I'd turn the key and all the central locking would go mental and lights flashing and warning lights popping up on the dash. I was worried it was due to me updating ECU data through the Gap tool and thought I'd bricked the ECU, but I put a brand new battery in and it fixed everything. Tested the old battery and it wouldn't charge; these vehicles are very sensitive to battery issues.  
Post #23746496th Aug 2024 7:57 am
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