I don't know for the 3.0, but the 4.4 doesn't start moving part the middle till it hits 113*C. At that point, it is running too hot unless you're in like 120*F weather, at which point you're realy pushing the limits of the cooling system anyways. Unlock you OBC (Google it if you don't know how) and tell us what the temp is when its at it's hottest. Also, make sure the aux fan (electric one on front of the radiator) comes on when you flick on the A/C. The next thing to check is the fan clutch (bolted to the motor) by making sure it has resistance. Look on e38.org BMW 7-series information and links for testing procedures.....we don't have the 3.0 in the 7, but its still the same mechanical item so testing is the same.
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650hp 10 X5///M - Stage 2, Vibrant 1794's , gutted cats, custom intake, AC Forged 22's 325hp 98 BMW 740iL - ///M5 6spd, www.bavengine.com w/ Performance Option, electric fan, CF intake tube w/ heatshield, Mag 14816 w/ notched bumper, Bilstein/H&R Stage II/Powerflex 600+hp 02 Harley F150 - MHP900 Stage 3 engine, KB2.3, 8# lower, 60# inj, Walbro FP's
135hp 01 TL1000R - M4 full exhaust, K&N, Yosh box, -1/+2 gears, 2CT's
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