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Hi.
Im almost back. I’m looking at a barely 15k miles 2017 Iridium Silver C63s with various packages from factory. What are the key items I need to inspect? For me that very low mileage for the year. I’m looking to exchange my Cayman S. Just looking a little bit of space and confort.
To be honest, such low mileage would be a bit of a red flag for me. Let me explain. With such low mileage, some known issues may not have surfaced yet during the factory warranty for the original owner, so they may still crop up. I'm somewhat going through this with my 2019 at about 35k miles now. The warranty has expired for over two years and some issues are now starting to crop up, which if I had driven it more during the warranty would have likely come up then and been covered. I suppose I could get an extended warranty, but they don't pay off until the repair bills are higher than the cost of the warranty and those warranties for an AMG are quite expensive, so need a lot of out of warranty repairs to get one's money's worth. I'm still debating if I should get one as I'm planning to keep the car for quite a while longer given where cars are going and the little driving I do.
As far as things to look for goes, early model years had issues with the dynamic engine mounts and the electronic locking differential. The engine is largely bulletproof, though. The version of the M177 in the E63 and G63 have issues with the oil separator, which is quite an expensive fix as it requires the engine to come out, but this hasn't been an issue with the C63. Might partly be because the E63 and G63 have cylinder deactivation, so part of the time the engine runs only on 4 cylinders. Long term reliability of cylinder deactivation hasn't really been determined yet as it's a fairly new thing. The C63 doesn't have it. Ironically it gets better fuel efficiency running on all 8 cylinders all the time as the E63 gets with partially running on 4 cylinders.
FWIW, the issue I'm currently dealing with is a clicking from the font when turning at slow speeds and it's likely the known issue outlined in the IL linked below. It's a known issue in all model years up to 2021. A case of cost cutting by making something out of plastic and it not holding up, so a revised part made of metal is the fix for it. I'll have to see if they are going to do a goodwill repair for me since it's a known defect. I'm also dealing with a sudden software issue in COMAND, where the digital instrument cluster is losing some of the settings periodically. Could be hardware that's starting to fail or a software bug that suddenly shows its ugly rear. Since it doesn't happen every time I drive the car, I haven't fully dealt with it other than having the dealer reload the COMAND software that didn't fix the issue. I'm planning on signing up with BenzNinja eventually and reload the instrument cluster.
Thanks.
That’s the red flag for me. Car is in pristine condition. Waiting on the carfax. Also because is from a dealer, with that mileage I have about 4 months of warranty. Good to drive the whole island and see how it’s hold.
That somewhat depends on your personal preferences and also if it's a coupe or sedan. If it's a coupe, then for 2017 there's the Edition 1 which came with aero parts that gives the car a much meaner look and stance. For 2019+ all this was available via an optional Aerodynamics Package. For the coupe, the optional staggered 19/20" wheels are another thing that adds a lot to the look of the car. They also came on the Edition 1, although there are two different wheel designs. The parking assist package is kind of a must, because otherwise there aren't even ultrasound sensors, but the package also adds the 360 camera. Kind of a must if you want to avoid curbing wheels. The Driver Assistance Package is up to you depending on what you are planning to use the car for. I find it invaluable on long highway journeys and when I find myself in stop&go traffic.
The one thing I personally would not leave out on an AMG are the AMG Performance Seats. They have a bit of a negative reputation among folks who let's say are not in their best shape as they make it more difficult to get in and out of the car, but those seats are awesome. The inflatable side bolsters allow for various levels of lateral support depending on how keen you are on attacking corners and I personally find them super comfortable and supportive on long trips. Have sat in them for up to 12 hours. As opposed to the standard seats they also have the thigh extension, which for me at 5'11" makes a big difference. I find most seats to be too short to comfortably support my legs.
For reference below are a few pics of my 2019 coupe with Aero package and carbon fiber exterior packages and below that a picture of an Edition 1 coupe. The coupes without the aero parts do look a bit naked and plain for my taste, but if you are looking at a sedan then this is a moot point.
Interior:
Last edited by superswiss; Aug 1, 2024 at 08:34 PM.
The M17x is not a proven reliable engine, especially in an early build year as the OP is considering. This engine in early build years is known for misfires, injector problems and needing a software update. Later build years it is known for oil leaks.
The M17x is not a proven reliable engine, especially in an early build year as the OP is considering. This engine in early build years is known for misfires, injector problems and needing a software update. Later build years it is known for oil leaks.
There are several variants of the M17x and it seems reported issues get intermixed with the different variants. Yes, the coils are a known source of issues with these engines, but AMG extended the warranty to 100k miles on those. That's the most common source for the misfires. ECU updates are not a big deal. I've had a couple. Oil leaks is the first I hear about. Haven't seen any of that reported at least on the C63. Yes, there is one rear main seal failure on a C63 it seems. Not exactly a pattern. There are several high mileage C63 out there w/o engine problems, so not entirely sure what you are getting at. Every engine can have issues. The high pressure injectors can fail in any direct injection engine. Age related failures shouldn't be mixed in with known design issues and bad parts such as the known problematic coils. But as said, AMG handled that by extending the warranty. I'm guessing they'll be forced to do something like that about the rear main seal as well, but I'm not too worried about it given there's only been one reported case on the C63 so far.
To be honest, such low mileage would be a bit of a red flag for me. Let me explain. With such low mileage, some known issues may not have surfaced yet during the factory warranty for the original owner, so they may still crop up. I'm somewhat going through this with my 2019 at about 35k miles now. The warranty has expired for over two years and some issues are now starting to crop up, which if I had driven it more during the warranty would have likely come up then and been covered. I suppose I could get an extended warranty, but they don't pay off until the repair bills are higher than the cost of the warranty and those warranties for an AMG are quite expensive, so need a lot of out of warranty repairs to get one's money's worth. I'm still debating if I should get one as I'm planning to keep the car for quite a while longer given where cars are going and the little driving I do.
As far as things to look for goes, early model years had issues with the dynamic engine mounts and the electronic locking differential. The engine is largely bulletproof, though. The version of the M177 in the E63 and G63 have issues with the oil separator, which is quite an expensive fix as it requires the engine to come out, but this hasn't been an issue with the C63. Might partly be because the E63 and G63 have cylinder deactivation, so part of the time the engine runs only on 4 cylinders. Long term reliability of cylinder deactivation hasn't really been determined yet as it's a fairly new thing. The C63 doesn't have it. Ironically it gets better fuel efficiency running on all 8 cylinders all the time as the E63 gets with partially running on 4 cylinders.
FWIW, the issue I'm currently dealing with is a clicking from the font when turning at slow speeds and it's likely the known issue outlined in the IL linked below. It's a known issue in all model years up to 2021. A case of cost cutting by making something out of plastic and it not holding up, so a revised part made of metal is the fix for it. I'll have to see if they are going to do a goodwill repair for me since it's a known defect. I'm also dealing with a sudden software issue in COMAND, where the digital instrument cluster is losing some of the settings periodically. Could be hardware that's starting to fail or a software bug that suddenly shows its ugly rear. Since it doesn't happen every time I drive the car, I haven't fully dealt with it other than having the dealer reload the COMAND software that didn't fix the issue. I'm planning on signing up with BenzNinja eventually and reload the instrument cluster.
I purchased my 2019 C63s coupe in April 2019. In April 2023, when my warranty (time) was about to expire, I purchased the MB Extended Warranty for 2 years/75,000 miles. The cost was I believe $6,200.00. This will take me into April 2025. So far, I have not needed to use the MB Extended warranty. The only thing I noticed was some overflow residue around the radiator cap. When the engine was cold, I realized the cap was not secured. I took it to the Dealership anyway, and they did a pressure check and determined that the cap was simply not secured. No invoice was given on this issue.
This past April 2024, the engine light came on and needed to have 2 Ignition coils 5 & 6 replaced. Regardless of warranty, MB will warranty Ignition Coils for 100,000 miles. They had my car for 2 long weeks. I currently have just over 31,000 miles.
So, in April 2025 I intend to purchase the additional year which will take me to April 2026. The maximum MB Extended Warranty is 3 years/100,000 miles. After that who knows.
I purchased my 2019 C63s coupe in April 2019. In April 2023, when my warranty (time) was about to expire, I purchased the MB Extended Warranty for 2 years/75,000 miles. The cost was I believe $6,200.00. This will take me into April 2025. So far, I have not needed to use the MB Extended warranty. The only thing I noticed was some overflow residue around the radiator cap. When the engine was cold, I realized the cap was not secured. I took it to the Dealership anyway, and they did a pressure check and determined that the cap was simply not secured. No invoice was given on this issue.
This past April 2024, the engine light came on and needed to have 2 Ignition coils 5 & 6 replaced. Regardless of warranty, MB will warranty Ignition Coils for 100,000 miles. They had my car for 2 long weeks. I currently have just over 31,000 miles.
So, in April 2025 I intend to purchase the additional year which will take me to April 2026. The maximum MB Extended Warranty is 3 years/100,000 miles. After that who knows.
For me it's the comfortability factor.
Yeah that's the thing. These extended warranties are a huge money maker. $6000+ for two years is crazy. You likely won't get your money's worth unless you have a major issue with the car. If you put that money into a savings account and use it for repairs, you will likely have money left after 2 years.
Last edited by superswiss; Aug 3, 2024 at 03:21 PM.
Yeah that's the thing. These extended warranties are a huge money maker. $6000+ for two years is crazy. You likely won't get your money's worth unless you have a major issue with the car. If you put that money into a savings account and use it for repairs, you will likely have money left after 2 years.
I believe the 3 year/75,000 mile MB Extended warranty was about $7,400. I purchased the 2 year/75,000 mile warranty at $6,200. So I am "assuming" that my cost to add the 3rd year warranty would be only $1,200. The SM made mention to just purchase the 3rd year when that time comes in April 2025.
I believe the 3 year/75,000 mile MB Extended warranty was about $7,400. I purchased the 2 year/75,000 mile warranty at $6,200. So I am "assuming" that my cost to add the 3rd year warranty would be only $1,200. The SM made mention to just purchase the 3rd year when that time comes in April 2025.
_
2 years of warranty for coverage for $6,200 ?!?! You should have called me! How many miles did you have on the vehicle at the time?
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