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Mercedes-Benz power steering fluid reservoir
Maintenance & Service

Mercedes-Benz Steering Fluid: Match the Required Specification

Confirm the hydraulic-system requirement before buying Mercedes-Benz steering fluid. Compare the exact Pentosin CHF 11S bottle and retailer destinations.

By Lee Shahin, Founder, European Wholesale Parts2 min read

Confirm the hydraulic-system requirement before buying Mercedes-Benz steering fluid. Compare the exact Pentosin CHF 11S bottle and retailer destinations.

Start with the installed system

Identify the hydraulic system and the required fluid reference for the particular vehicle. A Mercedes-Benz badge or an MB approval number mentioned in a general article does not establish that every steering system uses the same product. Check the vehicle information and retailer application lookup before ordering.

Compare the actual bottle

For a confirmed CHF 11S application, Pentosin’s one-liter bottle is a defined purchase: CRP ordering number 1405116. It is distinct from a Mercedes-branded bottle, CHF 202 fluid or a service kit. Shared catalogue cross-references do not turn those packages into identical retail products.

Mercedes-Benz power steering fluid maintenance best practices

The offers below now point to Pentosin-branded CHF 11S in the one-liter package. Match the required specification and vehicle configuration on the retailer page. No blanket MB 345.0 approval or compatibility with every Mercedes hydraulic system is implied by this comparison.

Choose quantity separately

The container holds one liter; service quantity depends on the actual operation. Establish that quantity before choosing the bottle count. Consult the seller for current price, availability and returns, and use the vehicle instructions for the work. EWP refers shoppers to merchants rather than selling or installing the fluid.

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Written by

Lee Shahin

Founder, European Wholesale Parts

Lee Shahin founded European Wholesale Parts in Pleasanton, California, after 18 years in the Mercedes-Benz and BMW parts trade. He came to the parts side from the shop floor: he opened a European repair shop in Northern California in the early 1990s, specialising in Mercedes-Benz and BMW, and grew it with his wife Laurie into a parts and delivery operation serving body shops and independent repair facilities across the region. Nearly two decades at the parts counter taught him where the expensive mistakes happen, and most of them are fluids: the wrong coolant in an aluminium block, an oil without the sheet approval the engine was designed for, a transmission topped with the wrong ATF. That is what he writes about here. Every article names the manufacturer specification by its exact designation, explains what the wrong fluid does mechanically, lists products that carry the approval, and gives the capacity and interval for the models and years the specification covers. When a reader needs a part sourced, the quote desk at European Wholesale Parts is where Lee and Laurie still answer the phone.