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

Reliability of 2007's

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Old Jan 26, 2011 | 09:17 PM
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littlehandegan's Avatar
littlehandegan
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Gelandewagen
Reliability of 2007's
Just wanting to hear some input from owners on 2007 S550's.

More reliable than the w220's?

I am looking at a few with lower miles out of warranty. I have owned Range Rovers out of warranty so I know what unreliable is lol.
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Old Jan 26, 2011 | 10:03 PM
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96 and 08 911 turbos
Depends.

Is it more reliable than a 2006 220? Probably not (probably similar actually).

Is it more reliable than a 2000 220? yes.

Seems the 221s are pretty solid with the exception of some typical MB electrics issues.
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Old Jan 26, 2011 | 10:29 PM
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W221 2013 S550 Rwd, W221 2010 S550 Rwd
the 7 speed 722.9 transmission has been having issues with valve bodys and control units , motor mounts failing fairly early, suspension vibration issues are becoming popular. hope this helps, goodluck
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Old Jan 27, 2011 | 06:15 AM
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Porsche Macan S SportDesign / Ex M-B's: 11 & 10 & 06 E350's, 02 S500
How is it that the inventor of the automobile, Mercedes-Benz, can't get the damn motor mounts right? I've never even heard of motor mounts failing on anything other than a Mercedes.

Also, the 7G seems to be a tranny that M-B has yet to perfect. Actually, it's near flawless on my 2010 E-Class, but it was a complete unrefined mess on my '06 E. Even after the Valve Body replacement, it wasn't perfect.
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Old Jan 27, 2011 | 10:49 AM
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2007 S550 2009 SL550
In 80,000 miles my 2007 S550 has had a transmission valve body replaced. Nothing else of significance.
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Old Jan 27, 2011 | 11:48 AM
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W221 2013 S550 Rwd, W221 2010 S550 Rwd
i agree k-a , such an engineered machine and motor mounts are an issue, the 722.6 5 speed was a pretty solid transmission , thats why w220/221 s600's have the 5 speeds in them. the 7 speed cant handle the v12's. i think i read somewhere the 2011 or 2012 v12's are getting a diff trans... lets hope they hold up. the s550 has been a solid car , but these few issues with the trans and mounts are becoming popular, also some 07's have the balance shaft and timing chain sprocket issue....thats a killer job if out of warranty
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Old Jan 27, 2011 | 02:01 PM
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S550, 2006 Range Rover Sports Supercharged
K-A you absolutely right, Almost all mercedes vehicle seem to have a motor mount problem after 25k miles...
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Old Jan 27, 2011 | 02:44 PM
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Mercedes S550
I had a problem with my transmission valve body (they described it as sticking valve) at about 19000 miles on my 07 S550. The charges were $1530 for the repair. I have not heard about balance shaft or timing chain sproket issues. Anyone with those issues like to chime in on what the repair ran them?
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Old Jan 27, 2011 | 05:05 PM
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W221 2013 S550 Rwd, W221 2010 S550 Rwd
here is a link for engine timing chain and sprocket issue http://www.benzworld.org/forums/w221...-problems.html

https://mbworld.org/forums/new-s-cla...-problems.html
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