Slackening and tightening instructions for the camshaft bearing caps - AH05.20-P-0300-01A

Engine 275 

Fig 1: Tightening Sequence Of Left Camshaft Bearing Cap Screws

Courtesy of MERCEDES-BENZ USA

Tightening instructions for left cylinder head 

1. Tighten screws stepwise according to the specified sequence.

   At the same time the bearing caps must not tilt.

   Slackening instructions for left cylinder head 

   The slackening of the screws is performed in the reverse order.

   Fig 2: Tightening Sequence Of Right Camshaft Bearing Cap Screws

   Courtesy of MERCEDES-BENZ USA

   Tightening instructions for right cylinder head 

1. Tighten screws stepwise according to the specified sequence.

   At the same time the bearing caps must not tilt.

   Slackening instructions for right cylinder head 

   The slackening of the screws is performed in the reverse order.