When exactly did Mercedes "reliability" improve...? LOADED QUESTION...
But would like to get some opinions...
You hear it, and hear it a lot - don't buy a Mercedes out of warranty - or unless you have a good used car warranty, etc.
However, there are also quite a few people/sources now saying that later model Mercedes "reliability" has gotten a lot better.
Any options as to what exactly constitutes "later models"...?
Are we talking 2010+, 2015+, 2020+...
I know different models and different engines have different "reliability" issues - but just talking about the S-Class (and even E-Class) here.
If you are counting SLK, in the S class, my opinion is, my judgment is based on a low bar.
Has my MB ever stranded me ?
No, but it came close a couple of times.
On the whole, fairly low unscheduled maintenance, and fairly high reliability.
If you are counting SL, too early to tell.




Their quality improved around 2010 across all product lines. So they are definitely better now than before.
We should be clear about what automobile manufacurers do; they sell new cars. Then they make and sell parts. MB is not making a car that will last a lifetime. They are focused on the showroom expereince, and offering the latest and greatest technologies available on cars. They know their new car buyers expect the latest and greatest, and will upgrade once their cars "feel" dated, either by tech or design, or both. The customer they care about will own the car 4 years or less, so that's what they focus on. They don't care about the 2nd owner, but will gladly sell you parts to keep that old car going.
When it came down to what I wanted to do/buy; I considered the higher cost of a newer and/or lower mileage car against the higher likelyhood of repairs on an older car. In most cases you'll come out ahead, meaning spend less money, with an older car than a newer car, but the difference is not HUGE. Depreciation is great, but you make payments on that depreciation in the form of maintenance and repairs.
W222's interior is a big improvement upon W140s as well as W220s




There are still mistakes being made, especially as they try to push more into the SW which is not their strength but one would say smaller things.
The consumables are getting more annoying; brakes, engine mounts and the like are now ridiculously expensive where they used to be ok on price.
BTW the engine mounts don't last as long due to MB pushing for the maximum isolation of vibration.
220 S-Class is troublesome. Lots of new technology that was not ready. Lots of lessons learned. Much stiffer chassis then 140.
221 S-Class much improved. ABC vastly improved. Reliability of electronics improved all the way around. Balance shaft issues in 5.5 liter and seems like a bent six. Seven speed transmission introduced.
222 S-Class as improved compared with 221 as 221 vs 220. Much of the car is aluminum and is a MUCH stiffer chassis compared with previous generations. No more feeling the chassis shudder over bumps. Now with seven speed box behind the bent-12. Carbon Ceramic brakes offered. Love not having to plan for big $$$ brake jobs.
Every S-Class has historically been almost a quantum leap forward from the previous generation.
I’ve not been in a 223 car. Seen them in the dealerships, design is huge turn off for me. Hear horror stories but reality is one should be ready for ‘challenges’ in the first year (at least) of an all new car.
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