Audi Workshop Service and Repair Manuals

Filling up gear oil in rear final drive 0BF Special tools and workshop equipment required

t  Charging device for Haldex coupling 2 -VAS 6291- or -VAS 6291A- t  Adapter for oil filling -VAS 6291/2- or -VAS 6291/3- t  Drip tray l  Rear final drive must be in installation position. l  Vehicle must be level (horizontal). l  Overview of plugs for gear oil → Fig. l  Gear oil drain plug must be fitted and tightened. Tightening torque → Item l  For oil specification, refer to → Electronic parts catalogue. –  For topping up, use charging device -VAS 6291-. –  Raise vehicle.

–  Remove gear oil inspection plug -arrow-.

–  Disconnect adapter -A- and elbow joint -B-. –  Screw adapter -A- in onto stop.   Caution If the adapter -A- cannot be screwed into the threaded hole for the plug, the housing rib -arrow- must be milled slightly using e.g. a scraper. Take care not to screw in the adapter -A- at an angle; otherwise the thread of the screw plug will be damaged. –  Connect elbow joint -B- and adapter -A-, making sure they engage. –  Route hose above drive shaft (right-side). l  The hose must not hang down. It must emerge above rear wheel on right side of vehicle. –  Lower vehicle.

–  Please make sure that valve -arrow- is closed. –  Screw oil reservoir -A- onto charging device -VAS 6291-. –  Now open valve -arrow- and hold oil reservoir as shown in illustration. The rear final drive will now be filled.

l  The rear final drive is filled correctly when oil comes out between the adapter -A- and the rear final drive housing -arrow-. –  Raise vehicle. –  If oil has started to emerge at adapter -A-, place oil reservoir e.g. onto a workshop trolley. Part of the excess oil will now flow back into the oil reservoir. –  Remove charging device -VAS 6291- as soon as oil stops flowing back into the reservoir. l  The oil level is correct when the rear final drive is filled to the bottom lip of the filler hole. –  Top up gear oil again if necessary.

–  Screw in and tighten new gear oil inspection plug -arrow-. Tightening torque → Item