VAS6209/4 Audi RS 6 DRC System Filling Device Supplemental Set. Used in conjunction with components from VAS6209 (VAS6209/5) to become equivalent to new VAS6544 (Filling device for DRC system) . VAS 6209/4 serves as an upgrade kit for VAS 6209 units already in service. When these products are combined, the complete DRC system (damper-line-central valve) can be extracted and refilled on Audi RS vehicles. Items supplied Adapter for front shock absorbers Adapter for rear shock absorbers Filler lines with quick-release couplings Pump unit Warranty 24 months