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PS leak e350

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Old Dec 11, 2024 | 06:40 PM
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PS leak e350

Purchased w a leak. Leaking by the washer like piece. Is there a seal there? Will it need r n p replacement?
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Old Dec 11, 2024 | 06:46 PM
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You see the 2 bolts holding down what looks like 2 washers. It’s leaking out of the washer like piece where it’s brighter.

Just purchased so know nothing about Mercedes. Is there some kind of seal inside there? Is this something that can be fixed without charging entire rack and pinion?

2006 e350
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Old Dec 11, 2024 | 07:35 PM
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W212 MY'14 M276-3.5NA @75kMi
Good catch, you've found your leakers. It's likely a set of hardened 50¢ O-rings.

If its located on the rack: parts unlikely separate.
Off the rack: available by reference number.
Stop by your dealer parts counter or use on-line Mercedes parts store.

Noisy pump may have suffered low oil level.

Last edited by CaliBenzDriver; Dec 11, 2024 at 07:36 PM.
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Old Dec 11, 2024 | 08:29 PM
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So Lucas or AT ATP 250 could seal it up?

you would have to drop the rack to change it and to drop it you remove those 4 bolts correct. On a Buick that part is part of the frame. This look like just a piece of metal holding the rack up. So you do not have to put a jack under the motor.

Does Haynes make a book for this?
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Old Dec 11, 2024 | 09:17 PM
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W212 MY'14 M276-3.5NA @75kMi
Originally Posted by BetsE350
So Lucas or AT ATP 250 could seal it up?

you would have to drop the rack to change it and to drop it you remove those 4 bolts correct. On a Buick that part is part of the frame. This look like just a piece of metal holding the rack up. So you do not have to put a jack under the motor.

Does Haynes make a book for this?
Haynes manuals were the best
These chassis use WIS documents that many ppl find on the Internet.

Look up MB parts catalogs for these seals.
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Old Dec 12, 2024 | 08:24 AM
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Who do you use for parts?
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Old Dec 12, 2024 | 08:34 AM
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I did find a dealership nearby. I’ll try to stop there tomorrow. And I found a repair manual on eBay for $10.
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Old Dec 16, 2024 | 03:57 AM
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2010 ML550 VIN WDC1641722A564750, 2010 B180
Originally Posted by BetsE350
I did find a dealership nearby. I’ll try to stop there tomorrow. And I found a repair manual on eBay for $10.
Try emanualonline- one off fee and you get the MB workshop manual. A bit clunky but it give you all the procedures but not part numbers.
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Old Jan 14, 2025 | 06:09 PM
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Fixed

It was just a bad o ring. Mercedes refuses to sell one but expects you to but a new line. A line and seal kit they call it. Went to grainger got a pack of 25 for $3.33. Was kinda hard getting at the line without taking the frame down but got it. Changed both o rings. Works no leak. Hopefully stays that way.
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