Quick answer:
Chain driven.
Dave M
Is the timing belt or chain driven?
1990 535i 5-sp., except for 16" M-Contours, cd deck, and clear corners, completely stock. 226k and running strong
Quick answer:
Chain driven.
Dave M
10/90 Build 525im, 630,000+km, Eibach/Sachs, Engine Rebuild
*RIP Oskar the DOG *
for future reference...here's a link to John Burn's Unix Nerd's web site...if you scroll down to the Engine Designation chart...note that the 11th column from the right titled TIMING lists each particular BMW engine and if it uses a belt or chain: http://www.unixnerd.demon.co.uk/enumber.html
Q
95 525iT / 97 740iL