Member Since: 28 Oct 2020
Location: Worthing
Posts: 23
Hellpppp, 65 disco 4 wont start
Hi all, disco 4, drove for 2 hrs yesterday at night all worked fine, got home parked up and turned engine off. Error came up saying restart car low battery
Tried and wont restart
Dash comes on as normal and lights work etc
Left over night checked battery 11.82 on multi meter put on charge for 6hrs got to 12.5 still nothing so though il buy a new battery. Brought one from
Halfords 12.8v still nothing. Doesnt even try and turn over?
Any ideas?
Thanks
Tom
27th Dec 2020 2:46 pm
PROFSR G
Member Since: 06 Mar 2017
Location: Lost
Posts: 5052
Sounds like possibly an earth strap has let go. Get a good jump lead and connect one end to the engine and the other to the battery negative terminal.
Make sure you have strong connections and see if it will turn over.yµ (idµ - eAµ) ψ=mψ
27th Dec 2020 3:12 pm
Tom2018
Member Since: 28 Oct 2020
Location: Worthing
Posts: 23
Hello, nope just tried that jumping off a 3lutre pickup no joy, press the button it clicks and the aircom goes off then comes back on 5 seconds later?
27th Dec 2020 3:14 pm
Tom2018
Member Since: 28 Oct 2020
Location: Worthing
Posts: 23
Any easy ways to check or find broken earth?
27th Dec 2020 3:15 pm
Kviasen
Member Since: 24 Dec 2020
Location: Norway
Posts: 107
Check fuse to starter motor, check for correct battery should be silver calcium and check battery negative.
Sometimes the new batteryes must be charged but you say nothing witch leads to thinking of poorly connected ground cable or possible short in starter motor but that is unlikely.
27th Dec 2020 3:20 pm
Tom2018
Member Since: 28 Oct 2020
Location: Worthing
Posts: 23
PROFSR G wrote:
Sounds like possibly an earth strap has let go. Get a good jump lead and connect one end to the engine and the other to the battery negative terminal.
Make sure you have strong connections and see if it will turn over.
Sorry just re read your post iv tried that and it will turn over but very weekly.
How doni fix it please?
27th Dec 2020 3:25 pm
philm
Member Since: 02 Oct 2016
Location: Manchester
Posts: 732
Tom2018 wrote:
Any easy ways to check or find broken earth?
PROFSR G test method.
Jumping from another vehicle doesn't show an earth fault.L633 Defender
Range Rover Velar-gone
Discovery 4 Landmark-gone
Gap IID Tool
If you don't connect engine and battery negative, car electrics won't necessarily work even jumping from another vehicle..
Dean
====================================
2011 D4 XS - OBD port protection, RLD spare wheel protector, All LED interiors lights, Timed Climate enabled, iiD tool paired.
2011 D4 Landmark - Stolen from same dealer before I paid for it
2011 D4 GS - Stolen whilst at dealer ... All LED interiors lights, DRLs, Spare Wheel protector.
1996 300Tdi - Eaten by tin worms
27th Dec 2020 3:28 pm
PROFSR G
Member Since: 06 Mar 2017
Location: Lost
Posts: 5052
philm wrote:
Tom2018 wrote:
Any easy ways to check or find broken earth?
PROFSR G test method.
Jumping from another vehicle doesn't show an earth fault.
I didn't suggest jumping from another vehicle, if there is a broken earth strap he can just bridge it with a single jump lead to confirm.yµ (idµ - eAµ) ψ=mψ
27th Dec 2020 3:32 pm
Tom2018
Member Since: 28 Oct 2020
Location: Worthing
Posts: 23
Ok thanks, so it seems that its a bad earth somewhere as wiring engine to battery negative means it will turn over very weekly by itself.
Any ways to find a bad earth? Theres the obvious wire from the battery to the passenger wing?
27th Dec 2020 3:34 pm
philm
Member Since: 02 Oct 2016
Location: Manchester
Posts: 732
PROFSR G wrote:
philm wrote:
Tom2018 wrote:
Any easy ways to check or find broken earth?
PROFSR G test method.
Jumping from another vehicle doesn't show an earth fault.
I didn't suggest jumping from another vehicle, if there is a broken earth strap he can just bridge it with a single jump lead to confirm.
It meant using your method!L633 Defender
Range Rover Velar-gone
Discovery 4 Landmark-gone
Gap IID Tool
27th Dec 2020 3:38 pm
PROFSR G
Member Since: 06 Mar 2017
Location: Lost
Posts: 5052
It's likely the strap on the driver side which bolts to the engine, then chassis, then body. If you get a strong earth as I suggested above it will confirm the earth strap failure, but it must be STRONG!yµ (idµ - eAµ) ψ=mψ
27th Dec 2020 3:42 pm
PROFSR G
Member Since: 06 Mar 2017
Location: Lost
Posts: 5052
If the earth strap( s ) are naff, battery won't be in a good state of charge ... giving you the slow turning over..
Dean
====================================
2011 D4 XS - OBD port protection, RLD spare wheel protector, All LED interiors lights, Timed Climate enabled, iiD tool paired.
2011 D4 Landmark - Stolen from same dealer before I paid for it
2011 D4 GS - Stolen whilst at dealer ... All LED interiors lights, DRLs, Spare Wheel protector.
1996 300Tdi - Eaten by tin worms
27th Dec 2020 5:02 pm
PROFSR G
Member Since: 06 Mar 2017
Location: Lost
Posts: 5052
Yeah it's a new fully charged battery I believe.yµ (idµ - eAµ) ψ=mψ
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... All LED interiors lights, DRLs, Spare Wheel protector.
