The torque on M103 7mm cam bolts is 16NM. All 1987 & later cars or earlier cars with replacement cam & gear. Not stretch bolts as the later M104 engines use(after 1992).

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MERCEDES BENZ MASTER GUILD TECHNICIAN (6 TIMES)
ASE MASTER TECHNICIAN
27 YEARS DEALER M.B. Shopforeman
190E 2.3 16V ITS SCCA racecar