Power Steering
Thread Starter
Newbie
Joined: Dec 2023
Posts: 3
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2002 Mercedes S55 AMG
Power Steering
My 2002 S55 AMG was making squeaking sounds and the steering was getting really tight when parking or turning it at slow motion. Once it got going the steering felt good and on highways no issues. My mechanic said i had to get new steering pump. Since i couldn't find original manufacturer pump i bought it from buyautoparts.com. the first one went bad with in 30 days as steering felt tight again. they had warranty so i got a replacement sent. Even that one now is giving up. I have already paid mechanic twice for labor. Any suggestions? could it be something other than power steering pump?
Thanks.
Thanks.
Senior Member
Joined: Feb 2003
Posts: 443
Likes: 118
'03 S55 (79K miles)
Does your 2002 S55 also have ABC suspension?
If so, the power steering pump is also the ABC suspension pump. They are a tandem pump unit sharing the same shaft. Many of them in the used market are pretty beat up with leaking seals and broken springs on the ABC side.
If your car has Airmatic suspension, disregard the above. Maybe you keep getting crappy pumps.
If your car has Airmatic suspension, disregard the above. Maybe you keep getting crappy pumps.
Senior Member
Joined: Mar 2019
Posts: 269
Likes: 93
From: Las Vegas, NV
2003 S55 AMG, 2005 C320 Coupe, 2020 Jeep Gladiator Mojave
^^^^^This! Even the re-mans are questionable. If someone knows of a reputable rebuilder/brand please chime in. I rolled the dice on an Amazon reman tandem pump back in March and now I'm beginning to hear some strange sounds from it. It's still doing its job but I have feeling I'll be replacing it again if I keep the car. I've had good luck with Autohausaz and see they sell a re-man, but I don't know much about Atlantic Enterprises https://www.autohausaz.com/pn/A4-003466240180.
From what I recall, new is discontinued and if you find a NOS on eBay they're about $1500+.
From what I recall, new is discontinued and if you find a NOS on eBay they're about $1500+.
