Welcome here are the timing marks I will send the procedure for install
REMOVAL AND INSTALLATION REMOVAL SERVICE POINTS <> CRANKSHAFT PULLEY REMOVAL CAUTION: Use only the specified special tools, or a damaged pulley damper could result.
Use special tools MB990767 and MD998715 to remove the crankshaft pulley from the crankshaft.<> TIMING BELT REMOVAL CAUTION: Never turn the crankshaft counterclockwise.
INSTALLATION SERVICE POINTS >>A<< AUTO-TENSIONER INSTALLATION
Place two blocks in a vice as shown in the illustration, and then place the auto-tensioner in the vice. CAUTION: Never compress the pushrod too fast, or it may be damaged
Tighten the right engine support bracket mounting bolts in the order shown in the illustration.>>D<< CRANKSHAFT PULLEY INSTALLATION
Use special tools MB990767 and MD998715 to install the crankshaft pulley.INSPECTION AUTO-TENSIONER
that is the procedure