Bmw 330I M Sport Clock

[davidanthony]

On a recently acquired 2008 BMW 330i M Sport, the clock needs to be re-set every 3-4 days. I have followed the manual to the letter and it sets OK, but sure enough after a few days it ' zeros' and needs setting again. Any thoughts please. I am sure Old Geezer will have the answer !!

[Baldric]

Fair enough, I shall leave it for OG then,
Signed, a fellow BMW owner.

[RATTER15]

It sounds like you need a new battery, ancillary components shutting down to preserve power to start the car.

[Baldric]

http://www.theanswerbank.co.uk/Motoring/Cars/Question1479384.html

[bhg481]

t could be something as simple as a bad or loose connection. When does it happen? when you're driving, when you start it, after leaving it for a few days?

[davidanthony]

BHG 481. it usually happens if left for a day or two. Maybe Ratter I need to get the battery checked just in case.

[bhg481]

I have a Volvo, so things will be different, and when my battery has been low the electric boot-opener and the radio have failed to operate, although the car started happily enough; I did get a warning message on the instrument display though. Was the clock zero when you turned on the ignition? perhaps you didn't look until the engine was running. I think Ratter has a good point and most places selling batteries will test it for you free.

[Hopkirk]

Surely if it was the main car battery, it would struggle to start.

[tonyav]

Do you know if it's had a battery change before you had the car ? and if so is it the correct battery for your car.

http://ilikekillnerds.com/2015/10/replacing-a-bmw-battery/

[bhg481]

Hoppy - no, the car seems to be programmed to cut out "luxuries" if the battery is down to make sure there is enough juice to start it.

[davidanthony]

I know the previous owner, and anything but everything went to the BMW dealer so I assume the battery ( no idea how old it is ) was the correct one.. Certainly no struggle to start, but as aid before I will get the battery checked. Watch this space and thanx for your input so far.