Cl500 w215 tandem pump (power steering/hydraulic pump rattle) issue
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Joined: Jun 2012
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2002 cl500
Cl500 w215 tandem pump (power steering/hydraulic pump rattle) issue
Ive been having a hydraulic pump issue in my cl500 (w215).
vehicle is a 2002 cl500 with 80k miles. abc and steering are working completely fine, other then the rattle noise itself.
Ive replaced the pump with a new tandem pump, along with a full hydraulic fluid change (done correctly by draining the system) and then followed by rodeo. Immediately after starting the car the noise still persists. Im not sure if i just got unlucky with a defective pump, or if it is something else thats causing the tandem to make noise.
any info is greatly appreciated.
thanks
vehicle is a 2002 cl500 with 80k miles. abc and steering are working completely fine, other then the rattle noise itself.
Ive replaced the pump with a new tandem pump, along with a full hydraulic fluid change (done correctly by draining the system) and then followed by rodeo. Immediately after starting the car the noise still persists. Im not sure if i just got unlucky with a defective pump, or if it is something else thats causing the tandem to make noise.
any info is greatly appreciated.
thanks
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Answer
Ive been having a hydraulic pump issue in my cl500 (w215).
vehicle is a 2002 cl500 with 80k miles. abc and steering are working completely fine, other then the rattle noise itself.
Ive replaced the pump with a new tandem pump, along with a full hydraulic fluid change (done correctly by draining the system) and then followed by rodeo. Immediately after starting the car the noise still persists. Im not sure if i just got unlucky with a defective pump, or if it is something else thats causing the tandem to make noise.
any info is greatly appreciated.
thanks
vehicle is a 2002 cl500 with 80k miles. abc and steering are working completely fine, other then the rattle noise itself.
Ive replaced the pump with a new tandem pump, along with a full hydraulic fluid change (done correctly by draining the system) and then followed by rodeo. Immediately after starting the car the noise still persists. Im not sure if i just got unlucky with a defective pump, or if it is something else thats causing the tandem to make noise.
any info is greatly appreciated.
thanks
FYI another possible cause:
The serpentine belt tensioner has been superseded five times, at least once due to failure issues.
Serpentine belt tensioner, superseded to
MB# 1122000970
roy@pelicanparts.com
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Junior Member
Joined: Feb 2012
Posts: 17
Likes: 0
C300
when you replaced the pump and filled the system did you pressurize the bottle to force the fluid into the pump?? I know if you don't do that the pump can create and airpocket and not push any fluid. It will cause the pump to be noisy but I have never heard one sound like that before.
Junior Member
Joined: Feb 2012
Posts: 46
Likes: 1
2003 CL500
benzCL786 or any one else could please help and tell me how to do a proper tandem pump exchange. I bought another used tandem pump to replace the old one that was leaking and now i need to know how to properly replace it thank you.
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