S550 Vs S600
) but Its always nice to have lots of power, and fuel economy is not an issue to me, im used to single diget MPG. My worry is Im new to modern European cars, I stick mainly to american or japanese cars and am not sure what kind of maintenance is required, or the reliability of said cars. Even with warranties It still a PITA to drop off a car for service all the time. To save some time lets get back to my main question before I ramble off anymore. My info comes from unverified sources on the web so I may be wrong on some info here. But from what I have gathered these are my pros and Cons. I would greatly appreciate anybody sharing any info I dont know, or any mis informed facts being corrected. Thanks!
Pros of the s550
AWD, Great for bad weather. MB 4matic system seems amazing at car control. How ever I own 3 other 4wd Vehicles (however they have nowhere near as advanced traction or Diff control system) so Its not a need, just a want, but if I do get a 550 Its a deal breaker not to have it.
Cheaper- to buy, insure, repair, taxes (etc) Usaa only wants 112 for this per month.
Smoother suspension
More reliable.
7 speed gearbox
Cons.
Less options standard,
less power.
Pros of the s600.
More power.
Tons of features.
Rarer.
Amazing start up sound (always loved the way a v-12 starts up for some reason, sounds so "elegant"
Cons
Expensive, insure, repair, etc Usaa Wants 200 a month for this car.
Maintenance nightmare
Rare=harder to find, have to travel to purchase one
only a 5 speed.
No AWD
not sure on a v-12 reliability.
Oddly enough they dont seem to be to far separated in price when CPO. Looking at a 2010 s550 with 5k on the clock and a 2009 S600 with 9k on the OD and its just a 3K difference. Which IMO is not alot when you get an extra 130 hp and everything standard.
So please advise me as I greatly appreciate it! Thanks!
Last edited by rollin thunder; Dec 27, 2011 at 12:45 AM.

Defiantly dont want that. Im quite happy with my 400 hp 800 ft lb torque Duramax V8 in my truck, as I say Im really not concerned with fuel economy.
First, how well optioned is the S550? The S600 comes with every option as standard, so to some degree there are more things to go wrong but I have not experienced any problems except two engine issues I describe below. Also, to add to your list, the S600 interior is all leather and alcantara. The leather is higher quality as well and the car feels more plush. There is very little exposed plastic.
If you want performance, the S600 is in a different league to the S550 and yet the car is so well insulated you often don't realize how fast you are accelerating. You can't argue with 500+ hp and 612 pound/feet torque and the engine has vast reserves of power. The 5-speed is really not an issue as the V12 has so much torque you could probably get by on a 2-speed! :-) The S600 is definitely a "heavy" car, but there is so much power on tap that it feels quite nimble when you open the engine up and it quickly shrinks around you. I personally rarely if ever experience single digit gas mileage. My usual is around 14-16 mpg mixed, and have managed to get up to 21 mpg on extended freeway driving. The S600 is no Prius but fuel economy is not *that* bad.
The classic item that may give problems as the car ages is the ABC which is standard in the S600 but optional in the S550. However the w221 is not yet old enough to compare with the w220 which is where most of the "maintenance nightmare" reputation has arisen. In general the w221 S-Class is much more reliable and appears to incorporate a lot of lessons learnt, even Consumer Reports recommends it!
The S550 V8 should give you no surprises. The S600's V12 is one of the most powerful engines on the road but is more complex. I have had one turbocharger oil leak and last month a turbocharger pressure sensor failure in my 4+ years of ownership. It did not worry me at all, I have a full 7-year extended warranty and given the complexity of the vehicle things can and do happen. I think it helps if you have a mental attitude that at this level of performance and complexity sometimes unexpected things can happen, and to not stress out when they do. Think positive - repairs are installations of brand new components and preventive maintenance!
In general if you are covered by CPO/warranty, and unless you need AWD for weather reasons, insurance is an issue, or you don't have the right attitude and mentality that ownership of a car of this complexity requires, then the S600 is a fine choice. There are few other vehicles comparable in terms of being a luxury ride.
Chris
Last edited by cjf_moraga; Dec 28, 2011 at 12:18 PM.
1. The level of refinement and luxury in the S600 is above and beyond 99.9% of all vehicles on the road, short of the Rolls/Bentley lines. There are far more gadgets in the 600 then there is in any other vehicle too - including night vision, massage, heated and ventilated and active seats, etc. etc.
2. The power....Its addicting to have a huge, luxury sedan that weighs as a much as a small moon embarrass so-called "sports cars." I have seen it time and time again - and its very satisfying - you will love it.
3. I have had some minor problems, including a radiator hose crack, hydraulic fluid leak and minor electronic gremlins - but these are expected in a car with this level of complexity. If you think about the fact that the front seat alone is more complicated and has more functions that your typical Kia, its not surprising that small stuff will come up.
Go for the S600 - you will never regret it.
But both cars im looking at are loaded, So its pretty much a toss up option wise. 550 has the night vision, rear seat package, coffee break warning system (not sure what its really called), lane change, and premium leather seats, im not sure if thats the same leather that is standard on an s600 however. Thanks again for the opinions guys. Right now im more so leaning to an s600. But the 2010 changes and awd kinda have me on a toss up. Even if I never need it, its just kinda nice to know its there. AS VA beach may not get much snow, but I travel to new york, and chicago in the winter months for 3-4 weeks each trip so im bound to get a snow storm, and even if the big citys dont get much snow, I know from my trip last year to chicago, the mountain roads were not fun, even in my big heavy yukon xl, and in a car with this much comfort and refinement, I would take that on trips for sure. Good thing is im not in a huge rush to buy one, if the perfect one comes tomorrow, great get the checkbook out, if its not for 3 months, im ok with that too.
Trending Topics
But both cars im looking at are loaded, So its pretty much a toss up option wise. 550 has the night vision, rear seat package, coffee break warning system (not sure what its really called), lane change, and premium leather seats, im not sure if thats the same leather that is standard on an s600 however. Thanks again for the opinions guys. Right now im more so leaning to an s600. But the 2010 changes and awd kinda have me on a toss up. Even if I never need it, its just kinda nice to know its there. AS VA beach may not get much snow, but I travel to new york, and chicago in the winter months for 3-4 weeks each trip so im bound to get a snow storm, and even if the big citys dont get much snow, I know from my trip last year to chicago, the mountain roads were not fun, even in my big heavy yukon xl, and in a car with this much comfort and refinement, I would take that on trips for sure. Good thing is im not in a huge rush to buy one, if the perfect one comes tomorrow, great get the checkbook out, if its not for 3 months, im ok with that too.
The "old mans car" comment is ridiculous. The S-Class is a "wise mans car" though. It is very much a classic rock solid MB. Good luck with your choice.
Chris
The Best of Mercedes & AMG
I happen to know of others who would have gone the AMG route over the 550 if 4MATIC was available. Mercedes used to mostly see RWD cars in the US and look what happened? They figured out there is demand for AWD and their AWD models are doing very well. Not just on snow but I love the surefooted acceleration and launch ability even on dry pavement with AWD. If you look at what happened with the CLS and other European manufacturers, there is definitely a trend towards AWD. I for one welcome it as I consider it a safety feature.
We can just agree to disagree on the merits of 4MATIC and high HP engines. My point being it would be nice to have the option for those of us who want that combination to pay extra to have that. All others can still have RWD
) but Its always nice to have lots of power, and fuel economy is not an issue to me, im used to single diget MPG. My worry is Im new to modern European cars, I stick mainly to american or japanese cars and am not sure what kind of maintenance is required, or the reliability of said cars. Even with warranties It still a PITA to drop off a car for service all the time. To save some time lets get back to my main question before I ramble off anymore. My info comes from unverified sources on the web so I may be wrong on some info here. But from what I have gathered these are my pros and Cons. I would greatly appreciate anybody sharing any info I dont know, or any mis informed facts being corrected. Thanks!
Pros of the s550
AWD, Great for bad weather. MB 4matic system seems amazing at car control. How ever I own 3 other 4wd Vehicles (however they have nowhere near as advanced traction or Diff control system) so Its not a need, just a want, but if I do get a 550 Its a deal breaker not to have it.
Cheaper- to buy, insure, repair, taxes (etc) Usaa only wants 112 for this per month.
Smoother suspension
More reliable.
7 speed gearbox
Cons.
Less options standard,
less power.
Pros of the s600.
More power.
Tons of features.
Rarer.
Amazing start up sound (always loved the way a v-12 starts up for some reason, sounds so "elegant"
Cons
Expensive, insure, repair, etc Usaa Wants 200 a month for this car.
Maintenance nightmare
Rare=harder to find, have to travel to purchase one
only a 5 speed.
No AWD
not sure on a v-12 reliability.
Oddly enough they dont seem to be to far separated in price when CPO. Looking at a 2010 s550 with 5k on the clock and a 2009 S600 with 9k on the OD and its just a 3K difference. Which IMO is not alot when you get an extra 130 hp and everything standard.
So please advise me as I greatly appreciate it! Thanks!
I happen to know of others who would have gone the AMG route over the 550 if 4MATIC was available. Mercedes used to mostly see RWD cars in the US and look what happened? They figured out there is demand for AWD and their AWD models are doing very well. Not just on snow but I love the surefooted acceleration and launch ability even on dry pavement with AWD. If you look at what happened with the CLS and other European manufacturers, there is definitely a trend towards AWD. I for one welcome it as I consider it a safety feature.
We can just agree to disagree on the merits of 4MATIC and high HP engines. My point being it would be nice to have the option for those of us who want that combination to pay extra to have that. All others can still have RWD
they would need to revamp the differentials, half shafts, transfer case, etc for the additional power and I don't think that makes sense. I feel like most people who are buying new S600s have the money for a GLK winter beater if they need it.
While we, as power-hungry owners would definitely like it, I'm guessing the true "new" demand is fairly low.
I too have the same vintage and wouldn't trade if for a brand new S550.
That's how spoiled and addicted we can get to such a great car.
I just don't want to even go into a new version when them come out as I fear I'd like it too much as I'm truly tired of the huge depreciation hits over the years, especially when you buy new.
Let's hope they last and last...




