qube 3570 Report post Posted March 14, 2013 Hi everyone. I have a e34 535i 1992. M30 engine I need to know which size belt I need for the air compressor. It's either 12.5x835 Or 12.5x855 It's only 2cm difference but I don't want to force the 835 on and not be able to get it off. Bmw has the 835 in stock for me to test fit. Otherwise I need to order from Germany Quote Share this post Link to post Share on other sites
BM WORLD 1283 Report post Posted March 14, 2013 should have new or used . just remove it and measure it . or come around and we try some Quote Share this post Link to post Share on other sites
qube 3570 Report post Posted March 14, 2013 But I don't have an existing belt to take off!! Haha... Quote Share this post Link to post Share on other sites
antil33t 90 Report post Posted March 14, 2013 Tried SCA? might be in their Bosch book.... also the belt will cost like $10 from SCA. Vbelts are very generic. Quote Share this post Link to post Share on other sites
*Glenn* 854 Report post Posted March 14, 2013 You can't but 12.5 belts in places like repco. Try a 13 X 860 first. The 13 will ride slightly higher in the pulleys. And then go either smaller or larger. Quote Share this post Link to post Share on other sites
