OEM Tool! Made in Germany! For renewing Front PTFE crankshaft seal Application: For installation of crankshaft seal, belt pulley end Audi A6 2011 +, Audi A7 Sportback 2011 +, Audi A8 2010 + 8-cyl. 4.0l TFSI Audi A7 2011+ , Audi Q7 2007 + 6-cyl. TDI common rail 3.0 l 4V engine (Generation II) Audi A4 2001+, Audi A6 1998+, Audi A8 2003+ 8-cyl. engine (BBK, BAS, BHF), 8-cyl. TDI Common Rail 4.0 4V 6-cyl. TDI Common Rail 3.0 4V This tool will also work on the newer 4.2L engines, message us if you need us to verify for your 4.2L engine.