Originally Posted by jeremy480
I'm not 100% certain, but after looking at some photos I think PW24W is the same as type 3157. I'm going to buy one and try it out.
Well, back to the drawing board... 3157 bulbs are not the same as PW24W. The 3157 base and bulb are about 25% larger than PW24W.
The PW24W bulb included with the car is manufactured by Philips but I can't seem to find anywhere to purchase an equivalent. It's unfortunate BMW is using such an unusual bulb format for the DRL.