ah, i had to do this a few years back. its a little tricky. first you have out the fan cover. then take off the fan. you will need a 3/4 wrench socket i think. you might have to double check. next you need to spray wd-40 or some other lubricating oil on the belt. it should be easily acessible since the fan is no longer in the way. if you need to move that radiator by hand a little that's fine, but make sure not not to slide off any of the fluid lines. since you now have the belt lubricated start turning it little by little and it should eventually slide off. if you have any more questions about it just ask!
Added: See this link. It shows how to replace both the main serpentine belt and the A/C belt.
http://www.bmw330ci.net/maintenance/belts.php
Inferior technology is only used on inferior cars. BMW stopped using belt timing in the early nineties. They all have chains.
Chain
The BMW m52 has a timing chain not a timing belt. there is no maintenance on the chain it is made for the life of the engine.
it has a timimng chain
No. It uses a timing chain.
Timing chain. All E36 and E46 models use a timing chain.
The BMW E46 M3 was first launched in Germany where the first BMW E46 M3 was built. The BMW E46 M3 was first introduced in October 2000 and was produced from 2001 to 2006.
there is no timing belt, or a belt to turn your camshaft if that is what you are wondering, it is all done by a timing chain and there is no service that they need.
That engine does not have a timing belt, it is chain driven and should last the lifetime of the vehicle.
yes, but you would have to get an m3 subframe to go with it...LOTS of $$$
if your butt is itchy then yeaa
The only place you will ever need for detailed schematics for ALL parts in the BMW E46 www.etk.cc