XSeries-forum

Car has had a low battery and with the cold it won't start

It's at home and I can get to the battery and have access to a mains

Is there something I can buy from a car parts shop to help trickle charge, jump start it

Need to get it started and aim to her a new battery

Alternatively can they be jump started with another car battery with jump leads?

Any jumps leads and may it harm other car, as I have a smaller car at home which is fine

Yes to both.

Halfords sell jump start devices that run off the mains, or it might be cheaper to buy a charger and leave it over night.

I've a F15 and it has a dedicated terminal for jump starting from another vehicle, the E70 might have similar. I'd get a decent set of heavy duty leads, I've seen cheap ones melt! Once connected, leave the jumping car running a while before trying to start yours, and make sure you rev the jumping car whilst trying to start.


Sent from the dark side by the power of the force!!

Getting a new battery today hopefully and fitted by a BMW specialist so it will be all coded up

Didn't appreciate how much jump leads are for the thicker ones

Decided against starting it against my small honda so a mate
Popped round in his e46 m3 and did the job

Left it running 10 mins
Gave it a 15 min run

Hopefully it will start this afternoon to get the new battery

-6 degrees and having had increased battery discharge flash at me for over a a month was probably why!

Glad it's sorted.

Decent kit always costs! Just remember, buy cheap, buy twice.


Sent from the dark side by the power of the force!!

Battery is 900a

Jump leads for something like that is £60+ at the motor shop near by

Spoke to the guy in shop and he said lots of it is sales pitch to buy bigger grade
Went for 400a I think so half decent cable thickness in fairness which was fine

CTEC charger is the one approx £60. I had HD leads from Halfords £25.00

Definitely recommend the CTEK chargers.  It's what BMW rebadge - and then add a surcharge for the privilege!