Ask Honest John

Most recently answered flat battery questions
We have a BMW X5 2008 model 3.0 litre diesel SE. Ever since we bought it, if it was left for two weeks the battery would be dead, not very good when you return from holidays. The dealership did various...
I have bought a car today, drove it 28 miles to a supermarket and went shopping. Came back out after approx 45 minutes and the car would not start. Had to call out breakdown and he managed to get it started...
After seven days of not using my car (normally its used daily), it wouldn't start today. Not only this, but there are no electrics, nothing! I opened the car using the key fob, but now the key fob won't...
I have noticed that when engine is switched off, the needles on the speedo and revcounter lift up for a second or two, and dash lights up, and then it goes back to normal. This seems to be draining the...
I have a problem with the self-dimming interior light in my 2007 Nissan Qashqai 1.5dci. On numerous occasions we have discovered the battery flat after a weekend, and the dealer says diagnostic scans find...
I have some questions for you about the use of jump leads. I have seen an advertisement that states you can plug them into the cigarette lighter socket in your car to start the engine, if your battery...
why does the battery go flat if the key is left in the ignition even though the switch is in the off position?
I got rid of my Rover 45 because it let me down so many times when the battery went flat for no particular reason. I changed the car for a Kia cee’d which is now giving me the same trouble. Everything...
I have a three-year old Prius and, on several occasions, the small auxiliary battery has gone flat when the car has been left unattended for two to three weeks. The Toyota service centre has suggested...
I own a Citroen C5 automatic diesel. I have experienced problems where, when parked for a number of days, the battery runs down. I had it checked by the garage and each time they say the battery is good,...
 

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