Member Since: 17 Jun 2020
Location: West midlands
Posts: 14
Battery or altenator???
On my 2011 discovery 4 had the charging system fault come up on the dash yesterday.Tried to start it today and it really struggled then when it finally started it threw up error code after error code. Is there an easy way to tell if its the battery or alternator????
5th Apr 2021 10:23 am
rrhool
Member Since: 28 Aug 2014
Location: Norfolk
Posts: 4525
If the light came on while you were driving, most likely the alternator. The battery may have suffered if the alternator has been playing up.
Charge the battery off the car, and check it.Richard
D3 SE 2007. Triumph 2.5Pi 1973. Ferguson TEA20 1948.
Discovery 2 4.0 ES 2001- Gone
Discovery 1 300Tdi ES '95 - Gone
Range Rover Classic '79 - Gone
5th Apr 2021 10:41 am
Justin1977
Member Since: 17 Jun 2020
Location: West midlands
Posts: 14
Thanks rrhool. Have noticed since the indicator on the battery says it dead and needs replacing NOT charging. Been looking at halfors and they do 2 batteries for discovery's, one a stop/start and one not stop/start. My disco does not have stop / start. Would it make a difference which one I fitted as stop/start one has higher ah rating ?
5th Apr 2021 12:31 pm
daimlermg
Member Since: 31 Jan 2010
Location: N Yorks
Posts: 140
Have a look at you battery to see what type it is.
I think your 2014 will be a AMG type.
Check here https://www.tayna.co.uk/car-batteries/types/019/Faultmate MSV-2
500,000 plus miles in RR,s and trying for more without breakdowns this time
Gone Lexus RX400h SE
Past Audi A6 avant Qutro
Toyota Supra
Long line of RR's
Had for 40 years but now gone 1935 Daimler and 1937 MG
5th Apr 2021 2:14 pm
Justin1977
Member Since: 17 Jun 2020
Location: West midlands
Posts: 14
So new battery fitted today. Unfortunately bloke with engine diagnostic wasn't in to "tell car had a new battery fitted" Unfortunately I do not own my own.... Car started OK with no error codes but while driving home "charge system failure" came up on dash again. Would not telling the car a new battery had been fitted cause this or am I looking at a new alternator??
5th Apr 2021 5:35 pm
lynalldiscovery
Member Since: 22 Dec 2009
Location: Maidstone
Posts: 7274
Have you got a multimeter?
5th Apr 2021 6:10 pm
daimlermg
Member Since: 31 Jan 2010
Location: N Yorks
Posts: 140
The advice I got on here was
"There is no need to reset anything the system will quickly adapt to a new battery"Faultmate MSV-2
500,000 plus miles in RR,s and trying for more without breakdowns this time
Gone Lexus RX400h SE
Past Audi A6 avant Qutro
Toyota Supra
Long line of RR's
Had for 40 years but now gone 1935 Daimler and 1937 MG
6th Apr 2021 8:36 am
Pedros
Member Since: 25 Jun 2011
Location: Cumbria
Posts: 454
Changed my battery recently as it started to not pull it's weight. It was the original battery (impressive). The car was quite happy with the new one. Mine's a 2010 vehicle. If the alternator is not working, you'll soon know that as it won't take very long for the battery to go flat. Have a search on here for what your battery should be reading when charging (i.e. car running) and see where that leads you. Or failing that, do the old trick of pointing the car onto the garage door, run it with lots of accessories and headlights on and after a while give it a good rev, see if the lights get any brighter. I guess that works with today's cars...Obviously if the lights get a bit brighter, then the alternator is doing something!
7th Apr 2021 12:25 am
Dandy
Member Since: 20 Feb 2015
Location: Surrey
Posts: 115
Battery /or alternator
Hi I also have a 2010 Disco and have replaced the alternator a couple of months ago, also original battery, battery still sees good .{kiss of death] make sure you get a Denso replacement.
Dandy
7th Apr 2021 3:45 am
Justin1977
Member Since: 17 Jun 2020
Location: West midlands
Posts: 14
Thanks for the help guys. Turned out alternator was only charging at 10.5 volts. After a trip to my local indy and a new alternator been fitted all is well.... for the time been.....
11th Apr 2021 2:29 pm
Justin1977
Member Since: 17 Jun 2020
Location: West midlands
Posts: 14
Thanks for the help guys. Turned out alternator was only charging at 10.5 volts. After a trip to my local indy and a new alternator been fitted all is well.... for the time been.....
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