RE: Mercedes-Benz C63 AMG: PH Buying Guide

RE: Mercedes-Benz C63 AMG: PH Buying Guide

Tuesday 5th January 2021

Mercedes C63 AMG (W204) | PH Used Buying Guide

The epic C63 was virtually a dinosaur even in its heyday; now you can add unicorn to the list...



Key considerations

  • M156 V8 still one of the best ever
  • Well earned muscle car reputation
  • Great handling alongside hoon potential
  • Handsome look matched by a smart interior
  • Used prices start from £17,500...
  • ...but running costs fit 6.2-litre billing

Search for a used W204 C63 here

OVERVIEW 

We’re all accustomed by now to the omnipresent ‘hot-V’ 4.0-litre V8 used in AMG’s latest and greatest. But the engine that preceded it is arguably held in even greater regard. The naturally aspirated M156 6.2-litre V8 is a certified Affalterbach legend, providing the W204 generation C63 with a USP that anything else in its segment - be it as saloon, coupe or wagon - struggled to match. 

The model launched in 2008 with 457hp and 442lb ft, driving the rear wheels via a seven-speed automatic gearbox. The C63 sprinted from 0-62mph in 4.5 seconds as a saloon or 4.6 seconds as an estate, with an electronically limited top speed of 155mph. This was raised to 174mph with the Performance Pack, which also brought uprated brakes, firmer suspension and a limited-slip differential. For many, it’s now considered a must have on used C63s. 

In 2009, the Performance Pack Plus was launched, increasing engine power to 487hp, and adding expensive composite front disc brakes and a carbon rear spoiler. Following that, the 6,208cc V8 was tuned further through several guises up to the limited run and UK-only DR520. Only 20 were made and each had 520hp - clue’s in the name - lowering the 0-62mph time to 4.1 seconds (4.2 seconds for the wagon), while top speed climbed to 187mph.


AMG also produced the slightly less extreme and more widely available Edition 507 as a run-out, but the most memorable W204 was the Black Series. It arrived in mid-2011 with 517hp; engorged arches hid wider tracks and gave the car an attitude like no other. An optional AMG Track Package brought stickier tyres, active rear axle transmission cooling and the AMG Aerodynamics pack. The Black Series was AMG's way of reminding the world of its motorsport roots. Click here to watch our video explaining how.

As the C63 was offered in three bodystyles and several variants, there is a decent amount of choice out there. An early C63 AMG saloon or estate will cost you from around £17,500, but values leap significantly when your search includes low-mile or limited-run versions. The cheapest Black Series listed at the time of writing was £82k, but the priciest cars are up for £50k more than that. Handily for a buyer on a budget, even the ‘regular’ C63s are tremendously exciting machines, although as you might expect from a fairly heavy saloon powered by a 6.2-litre V8, there are several key points to watch out for. To make things simpler, we’re concentrating on the mainstream C63 models as they are most plentiful. They also provide a useful starting point for higher-strung variants. 

SPECIFICATION | MERCEDES-AMG C63 (W204) (2008-2015)

Engine: 6,208cc, V8
Transmission: 7-speed automatic, rear-wheel drive
Power (hp): 457@6,800rpm
Torque (lb ft): 443@5,000rpm
0-62mph: 4.5 secs
Top speed: 155mph (limited)
Weight: 1,730kg
MPG (official combined): 23.5
CO2: 280g/km
Wheels: 18in (optional 19in)
Tyres: 235/40 (f), 255/35 (r)
On sale: 2008 - 2015
Price new: £56,665 (2011)
Price now: from £17,500

Note for reference: car weight and power data are hard to pin down with absolute certainty. For consistency, we use the same source for all our guides. We hope the data we use is right more often than it's wrong. Our advice is to treat it as relative rather than definitive.



ENGINE AND GEARBOX 

The 6,208cc M156 V8 engine has a bore of 102.2mm and a 94.6mm stroke, with four valves per cylinder. This develops 457hp at 6,800rpm and 442lb ft of torque at 5,000rpm in standard form and, while there are 487, 507 and 520hp variations on the theme, we'll deal with them as a whole as the problems to watch out for are common to all. 

Beforehand, it's worth noting the differences between the earlier Performance Pack (PP) and Performance Pack Plus (PPP). The earlier PP did not increase engine power, but the later 2009-on PPP did up power to 487hp by borrowing some internal components from the SLS (for which we have a Buying Guide on here). The 507's engine used the PPP motor but with revised ECU engine management to raise power to 507hp. The Black Series cars have a 517hp version of the engine. 

Cylinder head bolts on engines in cars built between 2008 and 2011 can break and cause the cylinder head gasket to fail. This will wreck the engine, though Mercedes has replaced motors under warranty. It's a problem that has been more prevalent in the USA than Europe and is also rare, so it shouldn’t realistically be an issue. 

An issue to consider is camshaft lobe wear, something that is caused by the cam lifters failing and putting too much stress on the lobes. If this happens, you'll be looking at a top end rebuild of the engine, though a good independent specialist should be able to carry out this work for much less than a franchised Mercedes dealer. Also, a specialist will be able to spot potential trouble in this area and steer you away from a car with impending problems. On that note, listen for a rough running engine at idle as it could be a leaking intake manifold.


The C63 is sensitive to the fuel it uses, so best to use a premium unleaded. Most owners prefer Shell V-Power and they also report you'll be lucky to see 300 miles from a tank – this is an enormous V8 engine, after all. Expect around 20mpg in mixed driving, and keep an eye on the oil level and top it up as needed. A healthy M156 shouldn’t use excessive amounts if maintained correctly. 

The AMG Speedshift Plus 7G-Tronic seven-speed automatic gearbox is generally considered up to the job of dealing with the engine's grunt. Pre-facelift cars feature a conventional torque convertor and three shift modes – Comfort, Sport and Manual – and automatic downshift blipping. Post facelift, the C63 got AMG's Speedshift MCT transmission, the torque convertor being replaced by an automatic lock-up clutch for faster shifts and an additional S+ automatic mode.

However, the gearbox in facelifted cars is more prone to overheating during hard driving due to the revised front bumper design, which doesn’t allow as much cold air onto the radiators. This can be cured by fitting the Black Series cooling upgrade, though this is not cheap as you'll also need a Black Series front bumper with its additional intake apertures to make this conversion work properly. Using all new parts from Mercedes, this could set you back more than £5,000. 

Along with quick ECU upgrades that can lift output by as much as 70hp, supercharging is a surprisingly popular route to more power. Kits deliver from about 640 to 770hp for prices between £9,000 and £11,000, though you will also have to factor in the cost of having these kits professionally fitted – and consider more than just the aforementioned cooling upgrades to ensure the M156, which runs relatively hot as standard, is kept to temperature. 


CHASSIS 

The W204 C63 AMG weighs 1,730kg as a saloon, with all bodystyles having a MacPherson strut-type three-link front suspension up front with coilover dampers and an anti-roll bar. At the back is a multi-link set-up similar to the standard versions of the C-Class, but for the AMG model the rear end was widened by 12mm. The front is some 35mm wider and AMG's engineers moved the entire front axle forwards to improve high speed stability. These changes also increased body rigidity of the steel monocoque. AMG Performance Suspension was an option to further sharpen up the C63’s base. 

Rack and pinion steering with speed sensitive hydraulic assistance is upgraded in the C63 from the standard C-Class to provide better feel and more weight. A steering wobble at speed is most likely due to the steering rack bolts needing to be tightened. 

As standard, the C63 came with 235/40 R18 front and 255/35 R18 rear tyres. Original equipment tyres were Bridgestones, which owners report last well and offer good all-round grip for road driving. With gentle driving, a set of rear tyres will last up to 10,000 miles, but keener drivers can expect to get through rears in around half the distance. Check the alloy wheels as they buckle easily over potholes and are also prone to kerb damage. The optional 19-inch alloys give a firmer ride. 

The C63 has 360mm front discs and 330mm rears. Front brake pads should last around 25,000 miles and cost about £450 for original equipment ones from Mercedes. A full set of brake discs and pads all round from Mercedes will set you back £2,200, so finding a good independent supplier makes a lot of sense to reduce running costs. 

A big topic of discussion among C63 owners is the limited-slip differential. It was a standalone option when the car was new, or a feature of the Performance Pack. With the later Performance Pack Plus, the differential was deleted from the kit, but could still be added as a separate option. Many owners reckon this is a no brainer thanks to the on-throttle precision it provides.


BODYWORK 

Excluding the most steroidal special edition models like the Black Series, which got even more features, the main differences between the C63 and lesser C-Class models are limited largely to the broader wheelarches, different front bumper and the more prominent rear diffuser, where four exhaust tailpipes poke out. 

At the start of 2011, the C63 was revised with a new front bumper (with fewer intakes, which some reckon restricts the options for engine enhancement as the cooling capacity is limited), a wider grille and wing-style front louvre. There was also a new front apron and lower crossmember painted in gloss black. Daytime running lights were added, along with aluminium powerdomes for the bonnet and clear headlamp lenses. 

The only common fault with the bodywork of the C63 highlighted by owners is the front bumper of all models is prone to stone chips and the paint on the bonnet seems less resistant to this type of damage than its rivals. If you find a car with a chipped front bumper or bonnet, budget for a respray in the price you pay. 

The C63 Estate's boot offer useful additional luggage space and many owners use this as their only family car. They immediately receive hero status. Choose the Coupe, though, and while you sacrifice some cabin space and practicality, you get a great looking AMG two-door. Mind you, the saloon isn’t too shabby, either.


INTERIOR 

While some might feel the C63's interior is not that much different from a standard C-Class cabin, it does have unique seats, instruments and steering wheel. Buyers could also choose from a wealth of options including Luxury Climate Control, Comand Media, phone pre-wiring, digital radio, reversing camera and various safety systems. 

Not all of the safety systems are liked by owners, who feel they can interfere with the driving experience and detract from their enjoyment of the C63 until switched off. However, it's worth looking for a car with the reversing camera as the high boot line can make parking in tighter spaces a hassle. 

Leather upholstery is standard in all C63s and generally wears well. The only bit that doesn't is the driver's outer seat bolster that gets rubbed as the driver climbs in and out of the car. It's easy to repair and you should budget for this. Also check the electric seat adjustment works as it should, as it's known to fail. Additionally, some owners report that certain interior panels can rattle over certain surfaces. 

Listen out for any cracks or pops from the body of the car as you drive along. This may happen in cars fitted with a panoramic sunroof and seems to be a trait rather than a real worry that is due to flex in the rear panels around the boot. It can also be alleviated by lubricating the seals around the panoramic sunroof.


PH VERDICT 

The W204 C63 is a comparatively rare case of a big capacity, high performance car which isn't a guaranteed money pit. Thanks tough engineering out of the gate, and Affalterbach’s seal of quality on a homegrown V8, there's not much - predictably expensive consumables aside - that stands out as a real danger area for used buyers. The C63 will benefit from diligent maintenance, of course, but that’s as true for the AMG as it is any other V8 performance car. Ensure the schedule has been stuck to, and that receipts are there to back it up. 

This is especially true for the cheapest C63s, which in recent years have occasionally dipped below the £15k mark, allowing buyers on tight budgets to access them – and potentially fail to keep up with proper servicing and care. Additionally, the menacing character of the W204 has made it an appealing base - the saloon and coupe in particular - for those wanting to modify a car. There is certainly no shortage of tastelessly altered and wrapped cars out there, something that makes those in largely standard tune all the more desirable. And almost certainly lower in risk. 

Find a car that’s well-kept and healthy, and the W204 C63 is easily one of the most beloved (and capable) AMGs ever made. This was the car that finally proved AMG could take it to BMW M across the board, and alongside the SLS was the catalyst for a new era, combining traditionally loutish AMG appeal with a level of chassis sophistication hitherto unknown to the brand.  

With AMG’s current C63 using the turbocharged 4.0-litre unit, and its replacement rumoured to receive a more humble four-pot, the W204 and its atmospheric V8 remains a real end-of-an-era prospect. It would not be a surprise if prices start to ascend over time. However, for now thevolume of available cars is keeping the value of higher-mileage variants under £20,000. Doubling that figure gets the very best, end-of-the-line 507s and other specials, but there’s absolutely no shame in limiting your search to ‘vanilla’ C63s. All are worthy legends of Affalterbach, and a terrific way to frivilously burn hydrocarbons while you still can.


Search for a used W204 C63 here

[This is a comprehensively updated version of an article that was first published in 2015]













Author
Discussion

ghibbett

Original Poster:

1,900 posts

184 months

Sunday 29th March 2015
quotequote all
Also check for interior rattles on face lift cars. They can be pretty bad.

Agree the LSD make a BIG difference to the drive. It really allows the driver to control the car's yaw angle with the throttle.

Finally there is a noticeable difference in both ride and slip progression between the 18"s and 19"s.

P.S. I ran one for 2 years and the associated costs are in my 'garage'.

gigglebug

2,611 posts

121 months

Sunday 29th March 2015
quotequote all
ghibbett said:
Also check for interior rattles on face lift cars. They can be pretty bad.

Agree the LSD make a BIG difference to the drive. It really allows the driver to control the car's yaw angle with the throttle.

Finally there is a noticeable difference in both ride and slip progression between the 18"s and 19"s.

P.S. I ran one for 2 years and the associated costs are in my 'garage'.
Was 30K expenditure for 2 years expected and planned for or did it come as a bit of a shock? It really helps to quantify the overall cost of running such a car seeing the monthly total in your blog, would be a lot of peoples budget for a car full stop! Were you able to demo a variety of differently specced cars before you came to your ideal compromise? I always think that many will end up buying blind based on what they think will be their perfect option list without actually being able so sample it. Not their fault obviously more the availability of demo cars with different specs

Oddball RS

1,757 posts

217 months

Sunday 29th March 2015
quotequote all
A car I would like to own in my head but not in reality, I can just hear the excuses now why you get a tenner for it at trade in time. Dealers don't seem to be short of them either.

gigglebug

2,611 posts

121 months

Sunday 29th March 2015
quotequote all
[quote=Oddball RS]A car I would like to own in my head but not in reality, I can just hear the excuses now why you get a tenner for it at trade in time. Dealers don't seem to be short of them either.[/quote

Depends on when they stop depreciating heavily and level out I suppose assuming you can live without it not being a brand new car. If Ghibbetts is typical then paying 36K for a 60K list car that is only 2 years old with less than 15K miles on it seams like a good deal for the second owner especially if it's been cherished and any niggles have been sorted out in that time. I know 36K is still a hell of a lot for a car and more than I'll every be spending I should think but the market for this level is growing not shrinking

allan1609

6 posts

185 months

Sunday 29th March 2015
quotequote all
I can see these starting to hold good money due to the character of the engine. There is something special about a n/a V8..

Toma500

1,219 posts

252 months

Sunday 29th March 2015
quotequote all
Petrol heads will fork out for these cars I've ran a griff 500 for 11 yrs now money /man maths come into it I know but jeez the noise the performance for what is really not a lot of money for a used example compared to some cars . I know I'm very tempted .

DJRC

23,563 posts

235 months

Monday 30th March 2015
quotequote all
I've come to kind if regard AMG as my grown up home after TVR. And Affalterbach has a certain kind of Seasider mentality about it smile

BILL PAYER

526 posts

178 months

Monday 30th March 2015
quotequote all
Was just thinking that engine in a silver Ultima with black wheels would make a change from the Ford or Chevy powered examples you see.

ST150HB

446 posts

148 months

Monday 30th March 2015
quotequote all
Would love to justify owning one of these, as it would make better dog transport than the XF I currently have - but i'm sure the 3-400 miles a week I currently do would ruin me financially at the petrol pumps!

unsprung

5,467 posts

123 months

Monday 30th March 2015
quotequote all

In a sooty black. Debadged. Would look wicked.

ghibbett

Original Poster:

1,900 posts

184 months

Monday 30th March 2015
quotequote all
gigglebug said:
Was 30K expenditure for 2 years expected and planned for or did it come as a bit of a shock?
It was budgeted for and the final result didn't come as a shock, rather a disappointment.

gigglebug said:
Were you able to demo a variety of differently specced cars before you came to your ideal compromise?
Yes I did! This is why I feel I can put a good perspective across, as I've driven many different configurations back-to-back on the same roads. For me the key decisions to be made were 18"s vs 19"s and the LSD or not. The back-to-back testing was invaluable, although costly (after the drive was the LSD car, and feeling what a difference it made, I knew I had to have it even though it was £1,750!)

Obiwonkeyblokey

5,399 posts

239 months

Monday 30th March 2015
quotequote all
Ive had a coupe for coming up for a year now.
Best overall car I think Ive owned and will probably keep it when the contract runs out.

Slarty Bartfast

251 posts

209 months

Monday 30th March 2015
quotequote all
Best all round car I have owned, sold my 2010 last July, now on the search for another...

Diff is a must, fitted the Quaife to mine and the difference was amazing, but sold the car before I managed to get it on track.

The 19 inch alloys need be be thoroughly checked. Both the rears were replaced by the dealer as both had cracked and been repaired. I then replaced both fronts as they were buckled. Not cheap!

Oh and the secondary cat bypass is a must... I have one in my loft ready to go music

Lost soul

8,712 posts

181 months

Monday 30th March 2015
quotequote all
gigglebug said:
Was 30K expenditure for 2 years expected and planned for or did it come as a bit of a shock?
That's a lot of depreciation but actual running costs look negligible !

gigglebug

2,611 posts

121 months

Monday 30th March 2015
quotequote all
ghibbett said:
gigglebug said:
Was 30K expenditure for 2 years expected and planned for or did it come as a bit of a shock?
It was budgeted for and the final result didn't come as a shock, rather a disappointment.

gigglebug said:
Were you able to demo a variety of differently specced cars before you came to your ideal compromise?
Yes I did! This is why I feel I can put a good perspective across, as I've driven many different configurations back-to-back on the same roads. For me the key decisions to be made were 18"s vs 19"s and the LSD or not. The back-to-back testing was invaluable, although costly (after the drive was the LSD car, and feeling what a difference it made, I knew I had to have it even though it was £1,750!)
That's cool! As a percentage of the overall cost I don't suppose £1750 is that bad though. Better than having the nagging doubt in the back of your mind that went for the wrong option

Phil300plus

26 posts

121 months

Monday 30th March 2015
quotequote all
Changed my C350 coupé for a C63 in November and, as long as you do relatively few miles or have deep enough pockets to manage 19/20 mpg, I'd say it is the best all round car I've had to date, and having owned a few high-ish end cars the C63 is the only one that passers-by will come up to you and ask about.

Phil

gigglebug

2,611 posts

121 months

Monday 30th March 2015
quotequote all
Lost soul said:
gigglebug said:
Was 30K expenditure for 2 years expected and planned for or did it come as a bit of a shock?
That's a lot of depreciation but actual running costs look negligible !
Yep but it's still money you'll never see again. Another poster might have it spot on by saying that second hand prices might keep rather keen seeing as they will be the last of the N/A engine versions

I wonder what the overall expenditure would be on a 2 year old car if run for 24 months?


Edited by gigglebug on Monday 30th March 19:53

markc31

1 posts

146 months

Monday 30th March 2015
quotequote all
Fantastic car. one of my mates son has one of these and went in it for a drive at the weekend for the 1st time.....how it accelerates is bind blowing, drive is fantastic, launch control, say no more, if i had the cash to splash it would defo be on the short list, 4 seater saloon with plenty of room for luggage for those holidays with performance of a 911....http://www.pistonheads.com/gassing/imgs/10.gif
smile

Oddball RS

1,757 posts

217 months

Monday 30th March 2015
quotequote all
I guess I see a different future for them, not being anti petrol head just how I see things going.

Not just yet but over the next 5-10 years they will be seen as very old fashioned, the newer turbo down sized replacements will be quicker etc (Don't forget the world has finally caught on to light weight being good), and people who will be buying budget fast cars at this stage will probably not want the day to day running costs, depending on what the price of oil does by then, I can see a few being broken for kits / projects etc, but again I guess like a lot of modern motors its the loom, ECU etc that is needed not just the lump, so I can see quite a few passing away.

Like I said just my view of the future for them.

turboteeth

350 posts

161 months

Monday 30th March 2015
quotequote all
Much as I really really love these I think these could become the new "Impreza", that is there will be many with blacked out windows, lowered, stanced, big exhausts, AMG manifestation plastered everywhere, big ICE installs, tacky turbo conversions, etc. with owners who can't afford the maintenance running them into the ground whereafter many will be broken for parts, leaving a few good ones left to be advertised on 4 Star Classics as a collector's piece in 2020...

I am probably just jealous that I can't afford one though!!