Mercedes-Benz SL450 Power Steering Pressure Switch Replacement at your home or office.

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Power Steering Pressure Switch Replacement Service

How much does a Power Steering Pressure Switch Replacement cost?

On average, the cost for a Mercedes-Benz SL450 Power Steering Pressure Switch Replacement is $174 with $79 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2017 Mercedes-Benz SL450V6-3.0L TurboService typePower Steering Pressure Switch ReplacementEstimate$273.31Shop/Dealer Price$322.89 - $449.13
2018 Mercedes-Benz SL450V6-3.0L TurboService typePower Steering Pressure Switch ReplacementEstimate$253.31Shop/Dealer Price$302.91 - $429.16
Show example Mercedes-Benz SL450 Power Steering Pressure Switch Replacement prices

What is the Power Steering Pressure Switch all about?

Power steering makes steering a vehicle much easier at low speeds. However, because the system is powered by the engine, increased loads can cause problems. The harder the power steering system must work to meet the demands of the driver, the heavier the load is placed on the engine.

The power steering pressure switch is located either at the power steering pump or the gearbox. It’s an on/off type of switch that communicates with the vehicle’s computer by sending information about the fluid pressure in the system, and if necessary, the computer adjusts the engine’s operation to account for increased demand. In some systems, the switch is also tied into the vehicle’s air conditioning and will turn off the compressor at certain load points (or communicate with the ECM to turn off the compressor). The switch uses a diaphragm, as well as two electrical sensors. Over time and through exposure to heat, the sensor can malfunction or fail.

Keep in mind:

  • The power steering pressure switch is not part of any regular maintenance.
  • The power steering pressure switch cannot be inspected without significant teardown.
  • Failure of the power steering pressure switch can mimic a number of other problems with the system, so it’s vital that one of our expert mechanics diagnose the problem.

How it's done:

  • The hood is opened and the engine is allowed to cool then drained of fluid
  • The power steering pressure switch is removed from the pressure line
  • The new power steering pressure switch is installed into the pressure line
  • The power steering system is refilled with fluid and purged of air
  • The engine is run and the power steering system operation is checked

Our recommendation:

The power steering system of your vehicle makes handling at low speeds much easier. It’s an important part of your vehicle, and if you’ve noticed that it isn’t operating correctly, we recommend having one of our expert mechanics diagnose it.

What common symptoms indicate you may need to replace the Power Steering Pressure Switch?

  • Lack of power steering assist
  • Engine stutters under heavy steering load

How important is this service?

While it’s not as critical as your drivetrain, the power steering system does offer vital usability enhancements. We recommend having any malfunction diagnosed as soon as possible by one of our expert mechanics. Note that problems with the pressure switch can be similar to numerous other issues, so self-diagnosing the failure is not recommended.

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Mario

4 years of experience
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Mario
4 years of experience
Mercedes-Benz SL450 V6-3.0L Turbo - Battery - North Palm Beach, Florida
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22 years of experience
2266 reviews
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22 years of experience
Mercedes-Benz C240 V6-2.6L - 90,000 Miles Maintenance Service - Santa Ana, California
Smart, knowledgeable, friendly and easy to talk to and ask questions, very competent, explains very clearly the issues if any with the car

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20 years of experience
652 reviews
Joseph
20 years of experience
Mercedes-Benz C230 V6-2.5L - Battery - Salt Lake City, Utah
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27 years of experience
588 reviews
Harish
27 years of experience
Mercedes-Benz ML320 V6-3.0L Turbo Diesel - Oil/Fluid Leak - Charlotte, North Carolina
Timely, courteous and professional

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5,332
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