FYI, reference the vibration in the 93' 300E 124 chassis. Changed the engine wire harness, very marginal improvement if any.

This is not the source of the vibration; however, the condition of the harness was very bad.

Mercedes Benz should initiate a recall on these, this is by far the worst harness I have ever seen. There is obviously a problem with the insulation and Benz should make good on them voluntarily.