S-Class (W221) 2007-2013: S 320 CDI, S 350, S 450, S 500, S 550, S 420 CDI, S 600

Differential problem, possibly transmission

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Old Dec 6, 2011 | 10:52 PM
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07 S550 4Matic
Differential problem, possibly transmission

I have an 07 S550 4matic which just crossed over 66k, it has been a phenomenal car except for today. I was driving today and then suddly my car came to a screeching hault, I turned it off started it up, and pulled it off the road.

I had it towed to the nearest mechanic shop were they told me the transmission was bad, but I felt like the car still had a good transmission so I took it to a Mercedes mechanic and we put it on the lift and he said the front differential is bad on the car and showed me that it had a leak, and he assumes that all the fluid leaked out and caused the problem.

So I have two questions do you think my tranmission might be bad also?
And where can I get a front diff for under $2500, or is it interchangeable with other benz models?

Thanks!
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Old Dec 7, 2011 | 10:48 AM
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07 S550 4Matic
Bump any help please!
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Old Dec 7, 2011 | 12:23 PM
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From: North Scottsdale, AZ
'71 Pinto
To comparison shop “new” differential installed @ production is part # 2213300402 parts.com $2820 replaced by current 2213301402 $2988.
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Old Nov 6, 2019 | 08:36 AM
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From: North Scottsdale, AZ
'71 Pinto
Originally Posted by Siksclass
hoping you could help me understand if 2213301402 part number front axle drive work on my 07 s-class? Can you also help me understand completely if when a p/n is “ replaced by” new p/n does that mean it’s an updated version of the original part and the new p/n should be used for replacement?
Although EPC lists current part # as 2213308700 it is actually 2213307801. Part replacement is normally based on varying factors - modification, remanufacture only status (no longer available new), and/or vendor/supplier change. IMHO always best to use current part # shopping new, current or direct preceding # shopping used.

https://www.mbpartshq.com/oem-parts/...bly-2213307801
https://www.ebay.com/itm/2014-2018-M...wAAOSwBxddjkRt
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