[DaveW]

Hello,

This is probably too late to be of use, but I will always buy the biggest battery that will fit and go for one that has the highest cold start torque value - that is the amount of power it will produce when you turn the key to start it. Out of interest, the last battery I bought for my Bi-Turbo actually came from BMW themselves. It's a monster battery and the price was pretty good!

Hej hej!

Dave.

 

[raveiz]

Dave,

Thanks for your reply. I ended up buying af 66Ah and the car is up and running again. Great :M5launch:

regards,

peter