This is my first 4WD. (2008 X5 3.0si). I have always owned rear wheel drive vehicles otherwise.

Now, every car I've owned it is always the front brake pads which wear out first.

In my X5 the condition based service since day 1 was also telling me this (front pads wearing quicker). However in the last 2 weeks the numbers have jumped dramatically.

It is now telling me
front - 70,000km
rear - 45,000km.

(I have 39000km on the clock)

Having never owned a 4wd before is this normal? ie are the rear pads supposed to be wearing out quicker then the fronts?

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2009 135i M Sport Convertible
2008 X5 3.0si
2003 E46 318Ti M Sport Compact - donated to parents
2003 116i Hatchback - donated to brother
2002 316Ti - Sold
2000 318ci M Sport - Sold
1998 318i Sedan - Sold