2014 disco tgTDV6

[pjlhat]

Battery will suddenly drop to about 8Vs or even lower and shut the vehicle down completely. When jumped started all is fine again for about 4 months then the same thing. Battery and alternator both test out all good. Peter

[dromader driver]

Battery will suddenly drop to about 8Vs or even lower and shut the vehicle down completely. When jumped started all is fine again for about 4 months then the same thing. Battery and alternator both test out all good. Peter

loose/bad earth. worked with auto electrician to get a large mower going recently and was surprised what can happen intermittently with corroded or loose earth cables.