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S-Class (W220) 1999-2006: S 320 CDI, S 320, S430, S 500, S 600

Power Steering Damaged?

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Old Jul 3, 2014 | 08:12 PM
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SL55, S500
Power Steering Damaged?
Hi Guys,

I got stuck in the sand the other day and while trying to maneuver out my steering got heavier and heavier. Eventually a tow truck got me out. But the power steering was almost dead.

I disconnected the battery and its fine again but within 10 minutes of driving the steering gets impossible to turn and its groaning super loud.

The only quick fix is to disconnect the battery and then it drives again for a peroid of time and gradually gets worse and worse until its dead.

I checked the P/S fluid and it was full.

What could be the issue? Sand stuck somewhere?

Thanks

This is it: Found it on youtube:

Last edited by Das Geld 2; Jul 21, 2014 at 12:57 AM. Reason: Added clip
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Old Jul 5, 2014 | 09:24 AM
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Have you checked belt condition and tension?
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Old Jul 5, 2014 | 02:33 PM
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Originally Posted by wallyp
Have you checked belt condition and tension?
Thanks,

I checked the belt condition and it was on fine.

What should I be looking for in terms of tension?
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Old Jul 5, 2014 | 05:44 PM
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2003 W211 E55, 2003 W220 S600
Does the car have ABC
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Old Jul 7, 2014 | 06:51 AM
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The groaning is an indication of a bad pump. How many miles do you have on the car? Have you checked for play in the pulley? I just finished replacing mine because of the noise.
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Old Jul 8, 2014 | 06:45 AM
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If it's fine after you disconnect the battery it's Not a mechanical problem with the pump

Do all the resets
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Old Jul 8, 2014 | 10:51 AM
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I'd probably check the connector for the speed sensitive steering.
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Old Jul 21, 2014 | 12:57 AM
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Originally Posted by tusabes
If it's fine after you disconnect the battery it's Not a mechanical problem with the pump

Do all the resets

this is the sound, comes back after car runs for 5 minutes.
found it on youtube. same issue
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Old Jul 22, 2014 | 07:57 PM
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No experience on the MB, but I used to have a Subaru and ruined the steering pump two separate times trying to get unstuck from snow. High revs + sawing back and forth for some reason cooked the pump. Although they made a much louder squealing noise when they were going bad.
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Old Jan 4, 2016 | 09:41 PM
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2003 S 500 4 MATIC , 2001 S 430 , 2003 ML 500
Got stuck in the snow the other day myself was rocking the car back and forth and now power steering is non existent , dont want to throw away money how can i be sure it is the pump ? No fluid is missing from the reservoir and i hear no groaning
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