ZF rack-and-pinion steering
NOTE:
The hydraulic fluid reservoirs are marked on the rim of the reservoir and/or the reservoir cap to show which type of oil can be used: ATF oil or Pentosin CHF oil.
The ZF rack-and-pinion steering has lifetime lubrication and is thus maintenance-free.
For topping up/filling hydraulic system:
POWER STEERING OIL
| Trade name | BMW part number | Container size | Oil color |
|---|---|---|---|
| BMW automatic transmission fluid (ATF) | 81 22 9 400 272 | 1-liter | Red |
| Pentosin CHF 11S | 83 29 0 429 576 | 1-liter | Green |
NOTE:
Vehicles with AFS/ARS (Dynamic Drive / Active Steering / Active Roll Stabilization) are filled as standard with Pentosin CHF 11S.
In case of repair, the affected steering components must be lubricated with the following grease:
COMPONENT GREASE
| Trade name | BMW part number | Container size |
|---|---|---|
| Calypsol SF-3-131-TMM 3 | 83 23 9 407 857 | 100 g tube |
NOTE:
Calypsol D 4024-OK is a sodium-saponified, cold-resistant grease whose lubricity ranges from -30 °C to +75 °C.