While tracking down a power steering fluid leak on my 2000 CLK320 (68K miles), I'm pretty sure that my harmonic balancer is about to fail. When the motor is running, I noticed a wobble at the crankshaft pulley (not the pulley itself) because the balancer is warped by about 2mm.

I have an appointment to have it replaced by the dealer but it's about a 15 mile drive that I can do at speeds under 50mph. My question - would you have it towed or would you drive it?