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W222 Models with 48V hybrid system

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Old Nov 26, 2023 | 06:39 PM
  #1  
cecum26125's Avatar
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2007 S550 W221
W222 Models with 48V hybrid system

Which years and models of the W222 have the 48V mild hybrid system? I am looking into buying another W222, but want to avoid these models due to the reliability issues I have heard about. Are they really that unreliable?

Thank you
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Old Nov 26, 2023 | 07:57 PM
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None in the US. The only W222 models that had the 48V system were only sold overseas
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Old Nov 27, 2023 | 10:40 AM
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'20 GLS450, '17 S550 Sedan
The 48V mild hybrid system "EQ Boost" began trickling into the U.S., with these models:

2019 -- E 53, CLS 450, CLS 53
2020 -- GLE 450, GLE 580, GLS 450, GLS 580
2021 -- E 450, S 500, S 580
2022 -- C 300
2023 -- GLC 300

Whether or not the system is categorically unreliable is debatable, as evidenced by the often passionate and occasionally ill-mannered opinions on this forum.

Since I only enjoy my vehicles with a Mercedes Warranty (either CPO or extended from new), I'm not personally anxious about the 48V system. I'm currently enjoying the benefits in my wife's X167.

I will almost surely own a W223, at some future point. However, I've loved my 2017 W222 so much that my next S will likely be another W222 (post-facelift).
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Old Nov 27, 2023 | 11:00 AM
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Originally Posted by cecum26125
Which years and models of the W222 have the 48V mild hybrid system? I am looking into buying another W222, but want to avoid these models due to the reliability issues I have heard about. Are they really that unreliable?

Thank you
Good choice. After 5 model years MB still hasn’t gotten their hybrid system right.
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Old Nov 30, 2023 | 10:17 AM
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2020 S450 4Matic, 2022 GLS450 4Matic, 2015 C300
As @mercedesbuff said:
"Since I only enjoy my 'newer' vehicles with a Mercedes Warranty (either CPO or extended from new), I'm not personally anxious about the 48V system. I'm currently enjoying the benefits in my wife's X167."

Our C300, that my son drives, has 126K miles and no warranty!

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Old Nov 30, 2023 | 11:17 AM
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'20 GLS450, '17 S550 Sedan
Touché, @will_atl

With the "newer" Mercedes models that I now own, I can only fully enjoy them with a M-B warranty in place.

That said, if I still had one of my previously loved models (without turbos, air suspension, or 48V charging), I'd be fine sleeping soundly at night sans warranty.

If only there was a way to purchase a brand new W124... "I'd like a 1993 300E, please, in Smoke Silver with Parchment Leather, and heated seats. Shaken, not stirred."


http://oudemercedesbrochures.nl/W124_USA1993.html



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Old Nov 30, 2023 | 07:53 PM
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That is just cruel.
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Old Jan 13, 2024 | 08:36 AM
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C300
I adore my W205, no warranty at all and 130K. I repaired it alone and since few little to middle size issues were fixed, this machine just roll. Best vehicle ever owned.
The new models with the 48v battery are fairly unknown. They have EQ Module - battery, Ctrl unit, cooling unit. The battery is surprisingly small. It's said to drive the car and I just wondered how far at low speed.
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