Function - Used to fix the timing position of the camshaft and crankshaft when replacing or adjusting the timing belt or chain. Application vehicles - Compatible with Mercedes-Benz M271 engines, including models: CLK 200 KOMPRESSOR, 200 CGI (C209); C180K, C200K, C230K (W203); C SportCoupe C 160K, C180K, C200K, 230KC; E 200K (W211); SLK 200K (R171); C 180K (W204) CLC 180K, CLC 200K; C 180 CGI, C 200CGI, C 250CGI (W204); E 200CGI, E 250CGI (W212, C207). OEM numbers - 271589014000, 271589001500, 271589006100, 271589003100, etc. Compatible with engines E18ML (02-), DE18ML (5/03), E16ML (5/03), DE19 (DE18), etc. Package includes - 1 Piece Timing Chain Retainer - 1 Piece Crankshaft Retainer - 1 Piece Drift Pin - 1 Piece Timing Chain Tension Key - 1 Piece Star Bit T100H Tamperproof - 1 Carrying case - A pair of gloves included for use with the tools Benefit - Built from rugged drop forged construction and heat treated to withstand difficult and rugged jobs, delivering a long-lasting and reliable tool set. Use scenarios - While replacing or adjusting the timing belt or chain on M271 engines, use this set to fix camshaft and crankshaft timing accurately. - During timing chain maintenance or tensioner replacement on the listed Mercedes models, use the retainers and tools to hold timing components in place for precise alignment. - When performing timing service on engines in the E18ML, DE18ML, E16ML, or DE19 families, use the tools to ensure correct timing position and simplify the procedure.