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Cracked Power Steering Pump Bracket

 
Old 07-15-2012, 02:36 PM
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ml 430
Cracked Power Steering Pump Bracket

I woke up this morning to no power steering and my battery light on. Took a quick peak under the hood and saw my serpentine belt had come off and was just laying there, not shredded. I was trying to figure out why when I noticed my PS pulley was loose and that the connector to the engine had actually cracked. Any idea what could have caused this and if I can just replace the bracket? Also, I had been having a rough idle for a few weeks, could this have been related to the loose PS pulley?

Last edited by chris24rk; 07-15-2012 at 04:33 PM.
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Old 07-15-2012, 06:27 PM
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2002 ML 320 & 2006 ML500
I'm afraid that I don't have good news for you. The P/S pump attaches to the Timing Case Cover and I presume that's what you mean by the bracket. Besides needing a new P/S pump and attaching bolts, you have to replace the Timing Case Cover. This is not a DIY job.

Something must have happened that maybe you are not telling us. Have you had a serp. belt installed lately? Installing an undersized belt will result in exactly what happened to your engine, or someone put undue pressure on the pump.
Attached Thumbnails Cracked Power Steering Pump Bracket-2012-07-15_181056.jpg   Cracked Power Steering Pump Bracket-2012-07-15_181156.jpg   Cracked Power Steering Pump Bracket-2012-07-15_181426.jpg  
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Old 07-15-2012, 08:27 PM
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ml 430
I appreciate the reply. I was fearing for the worst when I couldn't find that bracket online. I did actually have a serpentine belt replaced about a year ago. The belt is a contitech multi rib 2390, which looks like it might just be for the 320. Could this be what caused it? Other than that I can't think of anything that happened. I made it home safely last night and when I went to back out last night I had no power steering... Also, how much am I looking at to replace the cover and chain? Might as well get both while they're under there
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Old 07-16-2012, 09:13 AM
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2002 ML 320 & 2006 ML500
You are looking at 16 hrs. of labor, not including all the parts which are many. Alomost everything has to be stripped from the eng. including the entire oil pan, which requires special sealant. new bolts.

Then you have to decide who is going to do the job so decide wisely. If it's no brough to the right mech. you could have more problems than when you started. Replacing the chain is even a bigger decision. If it is not done absolutely according to the book (which requires special holding tools) you could wind up with bent valves.
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Old 07-16-2012, 03:08 PM
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w163
I wonder how it broke in the first place?
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Old 03-03-2016, 05:18 PM
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2000 W210 E55 AMG, 1959 W180 220S
did you ever end up fixing it yourself or getting the work done?


I had the same thing happen on my 2000 e55 amg a week after I bought it, which I believe has the same power steering pump (same as the e320).


Mine was indeed just a bracket the power steering pump bolts to that cracked. I bought a replacement at a junk yard, swapped it (very DIY ~30 minute job) and was fine for the last 7k miles, and it just happened again to my replacement pump.


I was searching to find a replacement bracket (again) and found this thread. I was curious to see I wasn't the only one.
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Old 10-09-2018, 01:29 PM
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92 S600
Affordable fix for broken p/S pump mounts

I manufacture and upgraded front power steering pump bracket that unlike the pot metal waffle that Mercedes uses it is strong enough to hold the pump by the front mount only. Redesigned with a 3rd hole that mounts into the block, not just the timing chain cover. Endorsed by local Mercedes techs and thousands of tests miles without failure. 199.00 including priority shipping. [email protected]
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Old 11-18-2018, 09:48 PM
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2002 CL500 to CL55 conversion
really, $200?
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Old 11-19-2018, 06:52 AM
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Originally Posted by ctravis595 View Post
really, $200?
Yes, 199.00 shipped. They are a good amount of labor to make
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