Home > Engine > Power Steering Pump Replacement with Pictures + VIDEO: E CLK SL C SLK CL Class

Power Steering Pump Replacement with Pictures + VIDEO: E CLK SL C SLK CL Class

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Instructions on how to replace the power steering pump or the power steering reservoir on Mercedes Benz V6 and V8 cylinder engines, such as the M112 and M113 engines. Symptoms of Power Steering Failure are:

  • Whining or squealing noise
  • Wheels are difficult to turn
  • Hard steering

We recommend that before you go and replace a power steering pump make sure that you have not lost power steering fluid. If you need help on checking the power steering fluid then check out this video. If you fluid level is low fill it up, using Mercedes Benz Power steering Fluid. Low power steering fluid will cause a whine, especially when you turn your steering wheel. You may have a very small leak that only needs topping off.

ML Class W163 issues: ML320, ML430, ML500 Mercedes-Benz even issued a Technical Bulletin for the steering issues such as squeaks and squeals noises from the area of the rack and pinion when turning the steering wheel left and right. According to the manufactures this noise comes from insufficient lubrication at the shaft sealing ring in the control head. The dealer’s solution is to remove 50 ml of power steering fluid and replace it with 50 ml of Lubrizol 6178.  Technical Bulletin Order No; T~B~46.20/31h. Supersedes: T-B46.20/31a 

DO IT YOURSELF

Video

How to replace the power steering Pump, Reservoir and Driver Belt tensioner on a Mercedes Benz.

Instructions

Tools you will need:

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  • A set of female E-Torx sockets tools, like this set which you can get on Amazon for under $20.
  • Screwdrivers
  • 17 mm deep socket to take off the serpentine belt.
  • Torx Set such as these. 

Instructions: 

  1.  Remove the serpentine belt. Instruction on how to do that with video here. 

  2. Open the power steering fluid reservoir and extract all the power steering fluid.

  3. Detach return line from the power steering reservoir housing.
    100_2132

  4. Unbolt the high pressure line. Make sure to not damage the small O ring when you pull out the line. mercedes_benz_power_steering_pump_removal17

  5. Use a flat screwdriver to pull out the C shape locking ring on the back of the power steering reservoir.
    mercedes_benz_power_steering_pump_removal28

    Make sure to not loose the rubber O ring. Don't get it damaged or dirty.
    Make sure to not loose the rubber O ring. Don’t get it damaged or dirty.

  6. Remove the bolt on the front of the power steering reservoir.
    power steering reservoir mercedes benz
    mercedes_benz_power_steering_pump_removal11

  7. Remove the two bolts on the back of the power steering pump. They are a pain to get to but you can do it.  If you have ratcheting wrench like these, you can use a 3/8 on the rear bolts. You will save a lot of time and get the job done a lot faster if you have ratcheting wrenches available.

    The two bolts on the back that you need to remove. You can easily see them here but they are a pain to get to when in the car.
    The two bolts on the back that you need to remove. You can easily see them here but they are a pain to get to when in the car.
    Here is the bottom bolt. This is a pain to get out.
    Here is the bottom bolt. This is a pain to get out.
    Here is the other bolt. Don't bother to take off the third bolt yet. It's the ground and you can remove it latter.
    Here is the other bolt. Don’t bother to take off the third bolt yet. It’s the ground and you can remove it latter.
  8. Remove the two E torx bolts on the front of the power steering pump.mercedes_benz_power_steering_pump_removal02

  9. Remove the attachment arm from the old power steering pump and attach to the new power steering pump. Note: You can also leave the arm attached to the engine, and unbolt these two bolts directly from the power steering housing. If you go this route you will have to unbolt the two bolts through the power steering pulley.mercedes_benz_power_steering_pump_removal02 mercedes_benz_power_steering_pump_removal19

  10. mercedes_benz_power_steering_pump_removal20

  11. NOTE: In step 10. There may be a ground wire as well connected to the power steering pump. If you are having a hard time getting to that bolt, don’t bother taking that off until you have the power steering pump loose. Once the bolts that hold the power steering pump in place come loose, you can move the PS pump and loosen the ground bolt.
    mercedes_benz_power_steering_pump_removal21

  12. Reinstall in reverse order. Make sure that you reinstall the rubber rings for the return line and also where the reservoir connects to the power steering pump.


    mercedes_benz_power_steering_pump_removal05

  13. Fill it up with the correct OEM power steering fluid see here, or you can use Febi Bilstein Power Steering Fluid .
    mercedes_benz_power_steering_pump_removal26

  14. Congratulations! You are done.

 

 

INTERCHANGES PART NUMBERS:

    86-01183 AN , 0034666001 , 003466600160 , 003466600180 , 003466600188 , 004 466 14 01 , 004 466 14 01 88 , 0044661401 , 004466140160 , 004466140180 , 004466140188 , 0044661401-88 , A0034666001 , A003466600160 , A003466600180 , A003466600188 , A0044661401 , A004466140160 , A004466140180 , A004466140188

 

APPLICATIONS: 

  • 2005-2006 Chrysler Crossfire Base 6Cyl 3.2L 195CID Power Steering Pump
  • 2005-2006 Chrysler Crossfire Limited 6Cyl 3.2L 195CID Power Steering Pump
  • 98-2000 Mercedes-Benz C280 Base 6Cyl 2.8L Power Steering Pump
  • 98-2000 Mercedes-Benz C43 AMG Base 8Cyl 4.3L Power Steering Pump
  • 2002 Mercedes-Benz CL55 AMG Base 8Cyl 5.5L 335CID Power Steering Pump
  • 98-2002 Mercedes-Benz CLK320 Base 6Cyl 3.2L Power Steering Pump
  • 2003 Mercedes-Benz CLK320 Base 6Cyl 3.2L Power Steering Pump —View Notes
  • 99-2003 Mercedes-Benz CLK430 Base 8Cyl 4.3L Power Steering Pump
  • 2002 Mercedes-Benz CLK55 AMG Base 8Cyl 5.5L 335CID Power Steering Pump
  • 98-2002 Mercedes-Benz E320 4Matic 6Cyl 3.2L Power Steering Pump —View Notes
  • 98-2002 Mercedes-Benz E320 Base 6Cyl 3.2L Power Steering Pump —View Notes
  • 2000-2002 Mercedes-Benz E430 4Matic 8Cyl 4.3L Power Steering Pump — View Notes
  • 98-2002 Mercedes-Benz E430 Base 8Cyl 4.3L Power Steering Pump —View Notes
  • 99-2000 Mercedes-Benz E55 AMG Base 8Cyl 5.5L 332CID Power Steering Pump — View Notes
  • 99-2002 Mercedes-Benz E55 AMG Base 8Cyl 5.5L 335CID Power Steering Pump — View Notes
  • 99-2002 Mercedes-Benz SL500 Base 8Cyl 5.0L Power Steering Pump
  • 2002-2004 Mercedes-Benz SLK320 Base 6Cyl 3.2L Power Steering Pump
  • 2004 Chrysler Crossfire Power Steering Pump
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