I disagree, the #14 cylinder heads are at best poor design / engineering + multi faceted critical failure of MB quality control.

Don't blame yourself...

There is NO way of predicting - when the #14 cylinder head will fail.

Through the years I have been blamed for several dozen random #14 cylinder head failures; after replacing climate control Blower motor, Brake pads, tires, fuel filters, front bumper, window regulator, and other totally unrelated components.

.

__________________
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