Remove/install chain tensioner - AR05.10-P-7800MCU

ENGINE 132.910 in MODEL 451.3/4 

Fig 1: Identifying Chain Tensioner Remove/Install Components

Courtesy of MERCEDES-BENZ USA

	Remove/install
1	Remove timing case cover (2)		AR01.40-P-8000MCU
2	Push back ratchet (3) using a suitable screwdriver, press together chain tensioner (1) and secure using a pin with a diameter of 1.5 mm via the bore (arrow)
3	Remove bolts (4) and chain tensioner (1)		*BA05.10-P-1004-01P
4	Install in the reverse order

TIMING CHAIN DRIVE

Number	Designation		ENGINE 132.9
BA05.10-P-1004-01P	Bolt, cam chain tensioner to crankcase	Nm	9