Checking the oil level in the power steering
1. Unscrew the screw plug and remove the cover from the receiver.
2. Oil level if oil is cold (ambient temperature approx. +20°С) in the receiver must be between the marks "min" And "max".
3. If required, add Mercedes-Benz steering oil N 000 989 88 03.
Attention! In principle, add only new oil, as even the smallest contamination can lead to malfunctions in the hydraulic system.
4. Check the o-ring on the cover for porosity or damage.
5. Place the cover for the pump casing and secure it with the screw plug.
6. Then, with the engine running, turn the steering wheel from lock to lock several times, due to which air is removed from the system.
Checking the oil level (hydraulic fluids) in the ride height control/automatically locking differential
1. Park the vehicle on a level surface.
2. Check the oil level with the engine stopped.
2a. Open the cap and pull it out along with the oil level gauge (2a).
2b. Wipe this pointer with a lint-free cloth and reinsert it all the way to its original position.
2c. Pull out the oil dipstick and read the oil level. It must be between the marks "min" And "max".
3. If hydraulic fluid needs to be added, use a clean funnel (60) and a fine mesh sieve.
Attention! Only hydraulic fluids approved by the manufacturer may be used, eg Mercedes-000 989 91 03/10.