Planning on doing a coolant flush on my 3.0TDI and elsawin states use of the VAS 6096 coolant charge system. I've done coolant flushes on 4 cylinder engines which also state the use of VAS 6096 coolant charge system, and never had a problem just filling it up. Has anyone else done this or know of a good write-up for the VAG V6TDi engines.