Volvo v70 SE
 

Hi I have a 2008 v70 D5 SE I use this car daily but every week or so I go to unlock it and the alarm goes off and I can't unlock it only the boot will open. I put a battery pack on the battery and it opens and starts with no problem any suggestions to what this maybe

low battery + random electrical gremlins = needs new battery?

just a guess, I would take it to a battery place and ask them to test it. a new battery is cheaper and less agro than a tow truck at 1am because you left your sidelights on for 10mins

does it normally happen after you've been doing short journeys and better if you've done a nice long drive. lots of people only doing local drives these days obvious reason

I do about 75 mile round trip to work most days??

ok well that is a decent distance ..

still I would get it checked seeing as the only thing we have to go on is that it works when you connect a booster pack ? unless anyone else comes along with better suggestions

I have heard a number of times, low battery can cause issues

OK thanks

Yup, agreed with Stuart.

Low battery causes all kinds of mayhem on these Volvos

OK thanks may buy new battery as I think the one in the car is to small.