Member Since: 15 May 2013
Location: United Kingdom
Posts: 13
electrical problem HELP...
Hi All,
this is my first post on this site so please be patient if i have put it in the wrong location or done something wrong..
I have a Discovery 3 55 plate. every time it rains or the weather is damp my disco does some strange things. for example car is on the drive over night, start it up first time and drive off. after a few seconds the dash starts to flash lights up like the hand brake and other icons. also the radio goes off and on and the sat nav screen goes off and on. after a few more seconds all goes to normal and never does it again during the journey to work .. then after being parked in works car park for the morning get back in and start and all is ok, no flashing nothing... + the air bag light comes on and wont go off until my garage resets it
car Never fails to start and no other issues. I had a new alternator about six months ago and new battery.
thanks for your time and help.... Tim
16th Oct 2014 2:28 pm
disco5
Member Since: 23 Dec 2012
Location: birmingham
Posts: 1088
Drop glove box and look at the massive fuse board (BCM) see if any signs of water staining on fuses
16th Oct 2014 7:48 pm
timpainter2000
Member Since: 15 May 2013
Location: United Kingdom
Posts: 13
thanks for the response much appreciated..
last year during a massive rain storm there was water inside the car and we thought we had left a window open as there was about an inch of water on the passenger side. I searched the forum and it suggested to check the scuttle plate a the bottom of the windscreen where the pollen filter is. this was dry .. It has no sunroof but is missing the battery cover. however the fuse box under the bonnet is also dry.. is it worth changing the A pillar fixings and the scuttle plate? where are the drain holes under the wings?
and how is the water getting to the fuse board (BCM) any ideas
16th Oct 2014 8:19 pm
Russell
Member Since: 24 Aug 2007
Location: Kent
Posts: 10564
How far is the journey to workMY17 D5 1st Edition Namib Orange
MY15 D4 HSE Kaikoura Stone
MY12 D4 HSE Nara Bronze Sold and gone
MY11 D4 HSE Stornaway Grey Sold and gone
D3 S spec Silver Sold and gone
Tow bar, full length roof bars, side steps, tow bar storage unit, surround camers.
D4 camera club
16th Oct 2014 8:21 pm
timpainter2000
Member Since: 15 May 2013
Location: United Kingdom
Posts: 13
about 1 mile lol... my wife uses the car as i cant justify the fuel costs.. only does it on first start EVERY time annoyingly
16th Oct 2014 8:23 pm
Russell
Member Since: 24 Aug 2007
Location: Kent
Posts: 10564
Try giving the battery a very good long trickle charge with a CTECK charger, or possibly replacing the battery if it is three /four years old. My D4 throws all sorts of warnings and will not change suspension height if the battery is low.MY17 D5 1st Edition Namib Orange
MY15 D4 HSE Kaikoura Stone
MY12 D4 HSE Nara Bronze Sold and gone
MY11 D4 HSE Stornaway Grey Sold and gone
D3 S spec Silver Sold and gone
Tow bar, full length roof bars, side steps, tow bar storage unit, surround camers.
D4 camera club
16th Oct 2014 8:27 pm
timpainter2000
Member Since: 15 May 2013
Location: United Kingdom
Posts: 13
tried charging the battery on a Ctek mxs 7.0 with a recondition program and no luck.. but will try again over weekend
16th Oct 2014 8:30 pm
Mr Kington
Member Since: 12 Dec 2011
Location: Scottish Borders
Posts: 1552
Try a hard re set too perhaps. Solves some electrical issuesJames favourite hobby is writing in the third person.
16th Oct 2014 8:30 pm
timpainter2000
Member Since: 15 May 2013
Location: United Kingdom
Posts: 13
whats a hard reset?? how do you do it?
16th Oct 2014 8:31 pm
Mr Kington
Member Since: 12 Dec 2011
Location: Scottish Borders
Posts: 1552
Shut car down with door open. Wait for it to be completely finished lights off inside etc. Take battery cover off and carefully take both battery cables off the battery and connect them. Use a spanner or something metal and hold it for 20 seconds. DO NOT connect the battery terminals, it will hurt ! Good idea to put a rubber mat over the battery when you do it. Might need to re set the clock but see if this helps.James favourite hobby is writing in the third person.
16th Oct 2014 8:38 pm
Narpy
Member Since: 18 Jul 2011
Location: Stockport
Posts: 7830
Hard Reset Procedure LinkMods:
Front Fogs + Halos
FBH Remote Control
The 1st Ever RRS Modded Grill
Garmin Nuvi + D4 Surround + Reversing Camera.
D4 Steering Wheel.
Rear Boot Spoiler.
Twin Brake Lights.
Wing Mirror Indicator Repeaters.
Long Roof Rails
Make your own Narpy grill thread
I'm not scared, I'm outta here.
16th Oct 2014 9:01 pm
timpainter2000
Member Since: 15 May 2013
Location: United Kingdom
Posts: 13
cheers gents ill give it a go
16th Oct 2014 9:32 pm
timpainter2000
Member Since: 15 May 2013
Location: United Kingdom
Posts: 13
still have fault
update
i did a hard reset and a 48 hour trickle/recon charge on the battery was better but fault has come back
if i start the car from cold and hold the door open and rev.. the interior lights fade and brighten.. does any one think its the battery or the alternator its had a new alternator recently and a battery a few months before that. could the alternator failure knackered the battery ??
4th Nov 2014 9:11 pm
motolite
Member Since: 18 Mar 2013
Location: Sydney
Posts: 931
there are plenty of examples from other forum members where a failing alternator has taken the battery with it
5th Nov 2014 8:36 pm
Robbie
Member Since: 05 Feb 2006
Location: ¯\_(ツ)_/¯
Posts: 17932
Got a multimeter?Land Rover - Turning Drivers into Mechanics Since 1948
You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum
