The right C217 to buy?

Were there any facelifts or updates other that the 2018 that matter? Any to definitely stay away from?
Thanks for your feedback!




Stay away from: S500/S550, S63 pre-facelift - you do not want to deal with the myriad of engine issues in the m278/m157 - just don't get these if u plan to keep the car.
Good to get: S400 (not available for the North American market), S450 (facelift of S400, not available for the North American market), S560, S63 post-facelift, S65 pre-/post-facelift.
4matic vs RWD:
Since you are in California I don't know if you care if it is 4matic or RWD - 4matic cars are a bit heavier.
Pre-facelift vs Post-Facelift:
S400 and S65 pre-facelift cars:
S400: The first is not available in NA and is aging.
S65: A V12 car with hydraulic suspension that will soon clock the 10-year mark (earlier models have done it in 2024) and from experience you do not want to have the aging combo of: m275/m279 and hydraulic suspension (even though both have been significantly improved over the years I still wouldn't go for this one - one issue persisting through the years on the m275/m279 engines is the plastic oil reservoir which is located in the valley of the two heads and in order to access it you have to remove the heads). The tunability of the S65 is also limited (really very few people know how to tune the v12 platform despite its introduction in mid 2002).
S560, S63, S65 cars:
Many upgrades across the V8 models (much more reliable engine - m176/m177 LS2), while the S65 can be considered simply a later model year with new screen inside, steering wheel, bumper, inserts, and stop lights.
Non-AMG vs AMG:
non-AMG
S400/S450: Again, if you are in the US I don't think you want to go to the trouble of ordering S400/S450 from outside. Also it has the smallest engine (M276 3.0 V6 biturbo, 367 bhp, 500Nm) of all of the above. So that I would consider a no-go.
S560: Most commonly available. It has the M176 engine with an engine block which is known to handle reliably 1200+ WHP (without sleeves). Reliability is stellar, with many cars reaching the 150-250k mile mark and perhaps requiring only chain replacement at 150k miles.
Some issues for this engine (shared with the M177 found in the S63):
1. Rear main seal (RMC) and oil separators - you can learn about this in the w213 E63 (pre-facelift) forums - it persists across all M176/m177/m178 platforms - it is an engine out job and it seems like it is not cheap in the US:
3. Valve train head gaskets - yeah they fail every now and then so check for sweating and leaks.
These are the top 3 for this engine - once fixed, you can forget pretty much forever.
Tunability: The m176 engine is basically detuned M177 engine. The M177 engine came in the C63(s) it was dubbed M177 LS1. It is 4.0 v8 - either with single scroll (LS1 in the C and GLC cars producing between 469 and 500 hp for the (s) versions) or twinscroll (LS2 in the E, S, GLE, GT 4-door cars producing from 577 to 630 hp). I will exclude from this post the m178 with flatplane cranshaft and drysump lubrication and any discussions on the AMG GT 2-door cars as they are quite different cars.
The LS1 cars on Stage 3 tunes produce about 1000 bhp in their most aggressive forms, while LS2 cars on most aggressive Stage 3 tunes about 1100-1200 bhp on stock unopened engine. I wouldn't advise pushing the stock rods and pistons for long on such power in each variant. The LS1 engine has higher compression ratio.
All in all this engine is highly reliable and highly tunable - Mercedes' most powerful cars from GAD and ECCTuned for example are testaments to this, while the many people on the C63, E63, GLC63, and other forums can confirm its reliability. Many guys drive these cars daily even on Stage 3 tuned above 850 bhp.
AMG
S63: The same engine as the one in the S560, but with larger twin-scroll turbos producing 603 bhp vs the 463 bhp in the S560. Here you have a stiffer suspension, 4matic+ system, and race start. Also the bumpers are different (the rear bumper is the same, just the "diffuser" and the exhaust tips are different). You also have a different exhaust system (electrically activated exhaust flaps vs vaccum activated ones in the non-AMG cars, without resonators). Also the engine compression ratio is lower here as the M176 engine in the S560 is closer to the M177 LS1 found in the C63 cars, while this one is identical to those found in the E63/GT63 4-door, only differences being the turbos). In terms of interior here you can get perhaps different color combinations and the seat's leather pattern is slightly different.
All in all - a slighly upgraded version of the S560 in my eyes.
S65: As noted later model year of the pre-face with a bit different visual characteristics and also it is much more expensive than the coupes with other engines.
Bottom line (my personal opinion):
Unless you are the type of person to want to always do something to their car - like constant power upgrades or wanting to go and build the car to 1200+ bhp, then get the S560.
As a daily - more comfortably, more reliable.
If you want power upgrades or longevity upgrades here and there - there is potential - pretty much all upgrades built for the C63, E63 and others are directly available here - be it turbos, HPFP, exhaust (S63/S65 is bolt on), downpipes, intercoolers, low-temp rads, exhaust manifolds, billet intake plenums and the list goes on. Also on the C217 chassis the space in front of the driver's side wheel arch is empty (the horn is there) and can be utilized for additional radiators (e.g. trans cooling).
If you want visual appearance - there are cheap S63/S65 kits which are being used all the time even on S550 to upgrade a 2014 car to 2021 car visual. There are many spoilers available from S63 yellow night edition lip, through ducktail, to Brabus. Also on the S63 front bumper there are Brabus inserts available and if u get AMG line S560 on the rear bumper u can place S63 trim and exhaust tips or go for the Brabus package.
What I mean is is that there is a lot you can do also on the S560 if you want to. If you want to go full blown 1250 awhp built you have to get the S63.
*If you can skip the car with Swarovski lights - if one single "diamond" burns out you will end up searching for a headlight unit forever.
Last edited by Lou275; Nov 30, 2025 at 04:48 PM.






With respect to your S560 - that must be one beautiful C217 worth a few photos here if still for sale and maybe someone will pick up on it.
Last edited by Lou275; Dec 20, 2025 at 11:12 PM.


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