| Petrol engines | Engine oil, viscosity of SAE 10W/40 – 15W/50, API SG/CD (Duckhams QS, QXR, Hypergrade Plus or Hypergrade) |
| Diesel engines | Engine oil, viscosity of SAE 10W/40 – 15W/50, API SG/CD (Duckhams QS, QXR, Diesel, Hypergrade Plus or Hypergrade) |
| Cooling system | Antifreeze on the basis of ethylene glycol (Duckhams Antifreeze and Summer Coolant) |
| Mechanical transmission | Transmission liquid (Duckhams Uni-Matic, or Duckhams Freetmatic A for models 300E, CE and TE-24) |
| Automatic transmission | (Duckhams Uni-Matic) |
| Main reverse gear | Gipoidny SAE 90 or 85W/90 oil (Duckhams Hypoid 80W/90 or Duckhams Hypoid 90DL for models with differential with the increased friction) |
| Brake system | SAE J1703F brake fluid or DOT3 |
| Steering with the amplifier | Mercedes-Benz Lenkgetriebeol (000 989 88 03) |
| System of the self-leveled back suspension bracket | Mercedes-Benz Hydraulikol (000989 91 03) |