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The power steering fluid reservoir on Mercedes-Benz models with the M112, M113, and M113K engines feature an integrated filter. Over time, this filter can become clogged and cause problems with your power steering system. Regular replacement of the reservoir is encouraged to keep your system functioning optimally. 

Mercedes-Benz W211 Power Steering Fluid Reservoir Kyle Bascombe


Mercedes-Benz W211 Power Steering Fluid Reservoir Replacement Symptoms

When you begin to experience symptoms of a failing power steering fluid reservoir, you shouldn't ignore them. If ignored long enough, you can quickly decrease the lifespan of your power steering pump. Additionally, if you suspect that your power steering pump is to blame, you should begin your diagnosis at the power steering fluid reservoir. As mentioned above, the filter inside the reservoir becomes clogged over time. When it becomes clogged, the symptoms you experience can easily be confused with the symptoms of a failing power steering pump. The main symptoms of a power steering fluid reservoir that needs replacement are:

  • Pump groaning (especially when cutting the wheel fully)
  • Fluid foaming at the reservoir
  • Leaks

There isn't a set service interval on the power steering fluid reservoir. However, we strongly recommend replacing it every 2 years, along with the power steering fluid. 

If you go to a dealer, you can expect this job to cost between $300 and $400. By doing it yourself, you're only paying for the parts, which are a fraction of the cost. Another added benefit is that the parts come with our Lifetime Replacement Guarantee. In another 2 years, you can send the reservoir back to us and get a new one completely free. 


Mercedes-Benz Models Applicable

This kit fits a wide range of Mercedes-Benz models that have the M112, M113, and M113K engine produced between the years of 1998 and 2010. This includes the chassis: W203, W211, W219, W209, W220, W171, and W172. 

  • 2001-2005 Mercedes-Benz C240
  • 2003-2011 Mercedes-Benz G55 AMG
  • 1998-2000 Mercedes-Benz C280
  • 2002-2004 Mercedes-Benz C32 AMG
  • 1998-2003 Mercedes-Benz ML320
  • 2001-2005 Mercedes-Benz C320
  • 2003-2005 Mercedes-Benz MK350
  • 1998-2000 Mercedes-Benz C43 AMG
  • 1999-2001 Mercedes-Benz ML430
  • 1998-2005 Mercedes-Benz CLK320
  • 2002-2007 Mercedes-Benz ML500
  • 1999-2003 Mercedes-Benz CLK430
  • 2000-2003 Mercedes-Benz ML55 AMG
  • 2003-2006 Mercedes-Benz CLK500
  • 2000-2006 Mercedes-Benz S430
  • 2001-2006 Mercedes-Benz CLK55 AMG
  • 2000-2006 Mercedes-Benz S500
  • 1998-2005 Mercedes-Benz E320
  • 1999-2002 Mercedes-Benz SL500
  • 2002-2004 Mercedes-Benz SLK32 AMG
  • 1998-2002 Mercedes-Benz E430
  • 2001-2004 Mercedes-Benz SLK320
  • 2003-2005 Mercedes-Benz E500
  • 2005-2006 Mercedes-Benz C55 AMG
  • 2005-2010 Mercedes-Benz SLK55 AMG
  • 1999-2006 Mercedes-Benz E55 AMG
  • 2006 Mercedes-Benz CLS500
  • 2006 Mercedes-Benz CLS55 AMG
  • 2002-2008 Mercedes-Benz G500
  • 2006 Mercedes-Benz S350
  • 2006-2007 Mercedes-Benz R500
  • 2009 Mercedes-Benz SLR McLaren


Parts Included with Mercedes-Benz W211 Power Steering Fluid Reservoir


Additional Parts Required with Mercedes-Benz W211 Power Steering Fluid Reservoir

Everything you need to replace your power steering fluid reservoir is included in this kit. 


Special Tools Required with Mercedes-Benz W211 Power Steering Fluid Reservoir

You don't need any special tools to replace your power steering fluid reservoir. 


Additional Parts Recommended with Mercedes-Benz W211 Power Steering Fluid Reservoir

While you're replacing your power steering fluid reservoir, we recommend replacing your serpentine belt as well. It makes sense to do it while you have the reservoir removed as you have access to it. 

Mercedes-Benz W211 Power Steering Fluid Reservoir

In the video below, Kyle Bascombe, our Mercedes-Benz Catalog Manager, gets up close with this power steering fluid reservoir kit. If you're unsure if this kit will work on your car, you can verify the fitment by going to our homepage and use the vehicle selection tool in the upper left corner. As usual, if you like this Really Quick Product Review, subscribe and check back here for regular releases in the future.

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Written by :
Evan Madore

Writer/Editor at FCP Euro and owner of a daily R53 MINI Cooper, a track-built R53 MINI, and a 1997 Dakar Yellow E36 M3 Sedan. ••• Instagram: @evan.madore

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