The following oils are recommended for Mercedes-Benz W124 automatic transmissions:
* ATF 236.10 (original Mercedes-Benz oil)
* Dexron III (general purpose automatic transmission oil)
* Valvoline MaxLife DEX/MERC (universal automatic transmission oil)
* Castrol Transmax Dex III Multivehicle (general purpose automatic transmission oil)
* Mobil 1 Synthetic ATF (synthetic automatic transmission oil)
The total oil volume for the W124 automatic transmission is approximately 6-7 liters. It is recommended to change the oil every 60,000-80,000 kilometers or every 5 years (whichever comes first).