I didn't use the stock fan, actually. I used a later model one out of a C or E class, can't remember which, but I do detail it in this thread. M113 might clear stock fan (maybe) but no way at all the M113K will. The late model fan works well, and I sat in traffic with the A/C on yesterday, and it was 105° out. Coolant temp was just barely above the midpoint.