In most older Mercedes-Benz Sprinters with hydraulic power steering, the fluid is automatic transmission fluid (ATF) that meets Dexron II or Dexron III specifications. Newer Sprinter models with electric power steering typically do not require a traditional power steering fluid. For the exact specification for your vehicle, check the owner's manual or consult a Mercedes-Benz dealer, since requirements vary by year, engine option, and market.
Hydraulic power steering: common fluid specification
The following details cover the most typical setup for Sprinters that still use hydraulic power steering. Always confirm with the official manual for your exact vehicle.
- ATF meeting Dexron II or Dexron III specifications is commonly used in hydraulic PS Sprinters.
In short, if your Sprinter has hydraulic power steering, use ATF that meets Dexron II/III specifications. If you’re unsure, verify with the manual or a Mercedes-Benz technician to avoid using an inappropriate fluid.
Electric power steering: no traditional fluid
Mercedes-Benz has moved many Sprinter models to electric power steering (EPS) or a variant known as electro-hydraulic power steering (EHPS). These systems do not require a conventional power steering fluid reservoir for routine maintenance. If your system is labeled EPS or EHPS and you see no dedicated PS fluid reservoir, follow the manual’s guidance on maintenance rather than attempting to top up PS fluid.
How to determine which system your Sprinter uses
Use these checks to confirm whether your van uses hydraulic PS or EPS and to identify the correct maintenance steps.
- Identify your model year and Sprinter generation (older vs. newer models).
- Inspect under the hood for a power steering fluid reservoir and a hydraulic PS pump; presence suggests hydraulic PS.
- Consult the owner’s manual or Mercedes-Benz service documentation for the exact specification.
- Check the VIN or contact a Mercedes-Benz dealer if in doubt.
Conclusion: Hydraulic PS usually requires ATF meeting Dexron II/III; EPS typically uses no traditional PS fluid. Always rely on the vehicle’s official documentation to confirm the correct specification for your exact year and engine.
Summary
The key takeaway is that Sprinters with hydraulic power steering generally use Dexron II/III ATF, while newer, electric-assisted systems do not use a conventional power steering fluid. Always verify the specific requirement for your year and model in the owner's manual or with a Mercedes-Benz dealer to avoid incorrect fluid use.