Servicing the interior of an Audi C5 generation (1998–2004) A6, S6, or RS6 involves removing front seats by disconnecting T40 Torx bolts and handling yellow airbag connectors, along with pulling the rear bench for access. Before servicing, it is crucial to disconnect the battery and move seats to the rearward position for access to electrical components. Access the full DIY guide at VAGLinks . Audi 4b C5 A6 S6 RS6 Seats Servicing - VAGLinks.com