Engine starting problems in cold weather

[mane]

I have 2005 X3 3.0 diesel. Last winter, it was -22 celsius and I was going to drive to work. When I turned key to start, it slowly rolled the engine and rolling speed slowed down untill I tried to start again. This next start, it didnt say anything more than like "click".

I took it to service and said that there is something wrong. They tested charger and changed the battery. Temperature warmed after then and it started ok. Sometimes you have to start quite long before it starts up.

Its that time of year again. Now its like -10c only, but every time I start it, it rolls like 5 seconds before starting up. Sometimes tire-brake light shows up and all dash meters start to dim, but it starts..

I called service, and lady on phone said there has been some problems with x3 and x5 start engine. Some modes take too much of batteri on startup, and you'd have to drive like over 30 minutes before it loads the battery enough.

Its also embarassing to start newish car like 5 seconds and pray every time that it starts before battery goes out.

Anyone else had this kind of problems?