Is there an alternative power steering oil other than the pentoshin chf 11s for a mini cooper s

The mercedes power steering fluid equivalent type is pentosin chf 11s transmission fluid.

https://www.oreillyauto.com/shop/b/oil--chemicals---fluids/maintenance-chemicals/steering---transmission/power-steering-fluid---universal/7461f130ca43/v/a/18580/automotive-suv-2006-mercedes-benz-ml500

fluid specs call for mopar hydraulic power steering fluid meeting MS-11655 specifications
Pentoshin CHF 11S is one such oil
Basically you pick up a bottle of power steering oil and if the label doesn't specify that it meets specification MS11655 then it is not suitable for dodge or jeep
some brands are
amsoil
pentosin
search other oil sites for power steering oil that meets ms-11655

Utube quicker or forum

You will see a black canister with a cap on it that says CHF 11S on it that is your steering fluid reservoir and that CHF 11S (which is normally green in colour) is the only type of fluid you can put in there, do not put standard power steering fluid in (Red in colour) as this will result in the system not working properly.

refilling is a good idea-but you need to find where its leaking at-be carefull if you jack it up-always use jack stands -cheers Denny

pentosin CHF 11s

drain all the oil in your power steering system then fill it up again with atf.

To avoid foaming and get the best longevity from your power steering unit, I would use "Automatic: Volvo transmission oil 1161540-8" which is Mobil 3309. It is a synthetic and will work well.

Yes There Is ONLY ONE PLACE for Power Steering Fluid.

ZF Gemmer Steering

The ZF Gemmer steering is permanently filled with oil. There is no drain plug.

ZF Rack and Pinion Steering Without Power Assist

The ZF rack and pinion steering is lubricated for its service life and therefore does not require servicing.
In case of repair, steering components on E21 vehicles are to be lubricated with a sodium-based grease, with a temperature range of -30°C to +75°C .
Calypsol D 4024 BMW Part No.32 11 1 116 929

Ball and Nut or Rack and Pinion Power Steering

Only reputable brand Automatic Transmission Fluid (ATF) of Dexron® III formulation may be used for the power steering and power steering pump.
In case of brief hydraulic noise after starting at low outside temperatures, we recommend replacing the red ATF with green CHF or LHM oil (see below).

ZF Ball and Nut Power Steering with H31 System

The approved oils for BMW models with power steering and the H31 brake booster system are identical with those oils approved for power steering without the H31 system except for the following:

E32 models with self-leveling rear suspension and mutual oil supply tank in the engine compartment.
Countries with very low outside temperatures (e.g. Canada) had their power steering systems filled at the factory with Pentosin CHF 7.1 since 9/87 through 9/91. This is also to be used on vehicles built before 9/87.

Since 9/91, vehicles now use Pentosin CHF 11S instead of CHF 7.1.

Pentosin CHF 7.1 BMW Part No.81 22 1 468 879
Pentosin CHF 11S BMW Part No.82 11 1 468 041

These cars are marked with a pertinent label located close to the oil tank.

LHM oils (green color) of the following manufacturers may also be used instead of Pentosin (CHF 7.1):
Shell LHM
Castrol LHM
Exxon LHM

The mixing of CHF, LHM oils and ATF is not permitted.

Pentosin CHF 4548 was used on vehicles built before 9/87 but is no longer available. However, mixing of Pentosin CHF 7.1 with residual quantities of Pentosin CHF 4548 are permiffed in these earlier vehicles. Mixing of these two oils is not permitted for E32/E38 vehicles.

The hydraulic system for power steering and power-assisted brakes must be drained as completely as possible when changing from one type of oil to the other.
All oil supply reservoirs are marked with the type of oil being used - ATF or CHF.

The power steering reservoir looks to be right next to a clear fluid reservoir, most likely for coolant but could be windshield washer fluid. Its a small black reservoir. It takes Pentosin chf 11s hydraulic fluid.