rough idle white smoke
Possible head gasket leak.
If it is a diesel it can also be a fuel injection issue.
not diesel? I agree with F_O_R... sad news, but fixable
Looking for a Used E-Class in your area?
CarGurus has 673 nationwide E-Class listings starting at $4,500.
Search Mercedes-Benz E-Class Questions
Mercedes-Benz E-Class Experts
Related Models For Sale
Used Cars For Sale