Horto22
Member Since: 11 Feb 2007
Location: Melbourne
Posts: 47
  
|
I have just checked the battery Voltage on my 07 TDV6 and was alarmed to see 18.7V on the multi meter. I have measure this voltage at both the battery and the accessory plugs in the front and rear of the car.
I thought max voltage should be 14 to 15V. Has anyone else heard of this. I will get it checked at nest service as I would think 18v could start to damage electrics & battery.
Cheers Horto 2010 White D4 TDV6 3.0l SE, Rear Diff Lock.
|
 28th Jul 2009 6:14 am |
|
|
mzplcg
Member Since: 23 Jun 2009
Location: Gone
Posts: 1087
|
Are you sure the meter is acurate? 18 volts would be blowing bulbs etc for sure.
Try the meter on another car to see if there is a difference. If the meter still reads high (over 16v) then I would suspect the meter as not being accurate.
|
| 28th Jul 2009 10:21 am |
|
|
heine
Member Since: 07 Feb 2007
Location: Midrand
Posts: 4054
 
|
I've never seen higher than 15.6 v get it checked ASAP
|
| 28th Jul 2009 11:14 am |
|
|
Roel
Member Since: 16 Aug 2008
Location: home
Posts: 1215
 
|
Check the voltage with the engine off. If that is still high I am sure your meter is wrong if the voltage is about right just below 13V that you have a problem.
I didn't check but if you have a Nav screen you could go in the hidden menu and read the battery voltage under the tab vehicle signals. Roel
1997 Camel Trophy Disco ex-P101JWK (traded it for a Britains 42101)
1984 90 TD5
2005 G4 Disco 3 BN55WPT
Also member of club MTR
and Club Faultmate
Interested in my 4x4 history see my website: www.mudmachine.webklik.nl
Sorry it's in Dutch and with google translator it gets funny.
|
| 28th Jul 2009 12:30 pm |
|
|
Tawny Owl
Member Since: 22 Oct 2008
Location: Here and there
Posts: 1645
|
Horto 
The Alternator should regulate the voltage around 14.5v , so 18.7v  will cook the battery !
First step is to check yer meter on another vehicle to make sure its accurate and if ok , poss faulty Alternator 
P.S Dont leave it until the next service if it is overcharging
|
| 28th Jul 2009 8:46 pm |
|
|
