So my car has been struggling to start lately, I.e it sounds like it isn't going to start, but then it does and all's good. I only use my car generally on weekends, but this weekend it again only just started, so tried it again last night, and dead battery. Managed to get it going again today after using jump leads.
So my question is this, how can I tell if I need a new battery, or if the alternator is not charging the battery well/fully, or could it be something else? When I had an X5 a few years ago, and the battery went flat, I changed it, only later to discover the issue was down to the final stage resistor needing replacing. Does the E46 have problems with the FSR too? Symptoms?
Also the fan speed of the heating system when on full blast doesn't seem to be that fast/powerful to me, I seem to remember when using the windscreen rapid clear button (or whatever it's called) on my E39 & X5 several years ago, that the fan was much more powerful, although i could be wrong, any thoughts on this?
Thanks in advance.