Changing engine oil (Mercedes-Benz S-Class W126)

Tighten the oil drain bolt with a new sealing ring.

Pour new oil into the cylinder head cover filler neck.

If it was removed, install the air filter. If it was fixed, release the vehicle. The difference between the minimum (min) and maximum (max) markings on the oil dipstick is 1.5 l.

After a test drive, check the tightness of the oil drain bolt and oil filter, and carefully tighten them if necessary.

Turn off the engine, warmed up to operating temperature, and check the oil level after 2 minutes, topping up if necessary.

In order to improve engine operation, you should always use the same type of oil and, if possible, the same brand when changing the oil. Therefore, it is advisable to attach a sticker from the oil packaging to the engine with the brand and viscosity of the oil each time you change the oil.

Random alternation of different types of oils is not allowed. Motor oils of the same type but different brands should not be mixed if possible. Oils of the same type and brand but different viscosity can be added if necessary during the change of seasons without further topping up.