Sprinter 3500 V6-3.0L DSL Turbo VIN 45 (2007)
16. Carefully position the cylinder head cover and install the bolts into their original position.
CAUTION: The cylinder head cover bolts are different lengths. Do not use the wrong length bolts or engine damage may result.
17. Tighten cylinder head cover bolts in sequence, first to 4 Nm (35 in. lbs.), and then repeat the sequence to 8.4 Nm (75 in. lbs).
18. Install the EGR valve.
CAUTION: The fuel injector sealing washers MUST be replaced. DO NOT use the old sealing washers or double the sealing washers.
NOTE: Care must be taken not to apply any lubricant to the fuel injector nozzles.