I thought I had mine solved with new coils but it didn't work. Mechanic said it was the transmission so I had a new one put in and no difference. The CV shafts were also replaced, with the motor mounts, new flex discs, new driveshaft support, and new transmission mount and it made no difference.

The vibration is always there but gets worse every 10 seconds or so, which is really weird. It is worse when the wheel is turned and at idle, there is occasionally a clicking sound going on, like a clutch somewhere is engaging, and that makes it worse. Anyone know what system is being engaged when that happens?

The only thing left that I can think of is the harmonic balancer, which is now 23 years old. Mechanic says that it visually looks fine. Or possibly the the main fan -- someone said in another thread that if the viscous clutch is misaligned that can do it. I have no idea what that means....

There has to be a solution to this issue. If unlimited money and time can be thrown at it, there must be a fix somehow. Is there anything else that is literally unfixable on these vehicles even if unlimited money can be spent?

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Mark
2001 3.0 Original Owner, still going
2012 E70 xDrive 35i Pre-Owned -- sold because no one could figure out the transmission problem