190E 2.3 (201.028) L4-2.3L (102.985) (1987)
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Since 12/88 a cylinder head cover has been installed which has a recessed wall (arrows) in the area of the spark plug recesses.
This prevents the valve spring or the valve spring plate rubbing the cylinder head cover and causing noises.
The modified cylinder head cover can also be installed on previous engines in the event of complaints.
