Attention! If the vehicle is equipped with electronically controlled air suspension, turn off the suspension height control switch.
2. Remove the level/filler plug, then remove the drain plug and drink gear oil (pic. 25.2).
Pic. 25.2. Location of the control / filling plug (A) and drain plug (IN) rear differential
3. Replace drain plug and tighten securely.
4. Fill with new gear oil up to the lower edge of the filling hole (see section 4). The grade of oil prescribed is listed in paragraph «Recommended Fluids and Lubricants».
5. Replace the level/filler plug and tighten securely.