Don't turn the wheel to the stops, the serp belt is probably tired.

What kind of smoke? The head gasket may be bad, are coolant and oil mixing?

Some steering wheel vibrations seem normal on these cars. You should not feel any vibrations in your seat, if you do it needs new engine mounts.

W140's should be smooth as silk.


You can buy pretty good W140's in todays market for low teens, spend more money on a better car.

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2006 CL500
2009 C300 4matic
1969 280SE
2023 Ram 1500
2007 Tiara 3200