FCP Euro Kits

The age-old Mercedes slogan “the best or nothing” can apply to many things, including their unrivaled depreciation off the showroom floor. What this means for those buying second, third, fourth, or even fifth-hand is the ability to obtain a massive amount of trademark Mercedes power and performance wrapped into a safe and luxurious package, all for a reasonable but ridiculous investment. Price-wise, the fear of cost and complexity of the fanciest AMGs has shoved older Mercedes models into the basement, but that potentially mechanical headache doesn’t apply to most of them. For under $10,000, you can acquire a tire-torching Benz filled with leather, wood, and tech in today’s finest models without the wallet-destroying cost. Take a peek at this extensive list, and you might find your next luxurious daily driver. 

W208 CLK430 & CLK55 AMG

The W208—technically, the C208—is an unloved Benz. It’s been forgotten among some same-year peers in its old age, but it holds massive potential. Despite looking similar to the W210 E-Class, the CLK is built around the same platform as the W202 C-Class, with them mainly sharing everything drivetrain and suspension-wise. The latter means the CLK has double-wishbone front suspension, multi-link rear suspension, and a curb weight of just over 3000 lbs. Not bad at all for something from the late-nineties.

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Under the hood of the CLK430 is the dependable 722.6 five-speed auto and a 4.3L variant of the iconic M113 V8. If you think that sounds eerily familiar to the C43 of the same vintage, you’d be right! The drivetrain is nearly identical, with the C43 using the intake from the CLK55 to give its V8 about 30 more hp than the CLK430’s 275 hp and 295 lb-ft of torque. With that intake, you can boost your CLK up to that point, but even without it, the small coupe will shove you to 60mph in about six seconds. Other bits like headers and supercharger kits are available, but they're pretty cost-prohibitive unless you got a screaming deal on a great example.  

On the other hand, you could search a bit longer and spend a bit more money on the CLK55 AMG. It has unique bumpers, different wheels, firmer—but still comfortable—suspension, different transmission tuning, and the larger AMG-tuned 5.4L M113 engine. The interior is a bit different, too, with more optional equipment and slightly upscale materials over the CLK430. But it’s the extra 70 hp and 81 lb-ft of torque that contributes to the speed. It’s enough to propel the AMG to sixty miles per hour, about a second quicker than the CLK430. 

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So, what are they like to live with? Any issues? 

Of course. The M113 is stout but can get leaky, so look for oil residue or odors around the valve covers, belt drive, and oil cooler. Small bits like crankshaft and camshaft position sensors can also cause funky running. It also uses two spark plugs per cylinder, making ignition services more costly. Many second/third/fourth owners will likely avoid that service, so watch out for any misfiring issues. The gearbox is plenty stout for the power, but can get cranky if not serviced. Mercedes labeled them as having “lifetime fluid,” which was never the case. Things like hard shifts and holding a gear too long could indicate larger issues. The W208 chassis is also rust-prone, both underneath the car and on the body, so get underneath and inspect it before purchasing. Rust can begin under the sills, the wheel arches, around the trunk lock, and the bottoms of the doors. If possible, check the front spring buckets to be sure they aren't separating from the body with age.

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Mercedes CLK430 & CLK55 AMG Specs

Chassis/Model

W208 CLK430

W208 CLK55 AMG

Engine

M113 V8

M113 V8

Displacement

4.3L

5.4L

Horsepower

275 hp @ 5750 rpm

342 hp @ 5500 rpm

Torque

295 lb-ft @ 3000 rpm

376 lb-ft @ 3,000 rpm

Transimssion

722.6 Five-Speed Automatic

722.6 Five-Speed Automatic

Weight

3426 lbs

3575 lbs

0-60 mph

6.5s

5.0s

Quarter-mile

14.8s @ 96.5 mph

13.6s @ 106 mph

W209 CLK500

The W209 has the CLK55 and CLK63 as the range-topping, fire-breathing performance variants, but there’s still lots of performance from the trims below them. The CLK500 makes the case for an affordable, high-powered cruiser, with a 5.0L V8 producing 300 hp and either the super-stout 722.6 five-speed automatic transmission or the even stronger and quicker-shifting 722.9 seven-speed automatic. It’s softer and slower than the AMG, but it’s easier to find, less expensive to buy, and can be retrofitted with most AMG parts. It could be a winner.

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While it’s not the big 5.4L unit, the CLK500’s M113 V8 still makes enough power to reach sixty in the mid-five-second range. That’s partly thanks to the 722.6 five-speed auto, whose quick shifts and tight gearing get the relatively heavy model up to speed without fuss. Later models with the seven-speed should be a few tenths quicker. Issues under the hood are similar to those of the CLK430 since the drivelines are similar. Oil leaks are common, and ignition services can be expensive. Be sure to also look out for a faulty crankshaft position sensor; it’s inexpensive to have on hand for a relatively common failure point. 

Be sure to ask about the last transmission service for each model you look at. Some 722.6 five-speeds may never have had a service as a byproduct of Mercedes referring to the fluid as “lifetime fill.” Because of that, conductor plate failures are common and something you’ll need to watch for. Conductor plate replacement is messy and involved, but we have you covered with a DIY service video. Generally, the seven-speed cars will have more regularly serviced transmissions due to their defined service intervals, but that would require every owner to stick to them. Things within can get a little unhappy if not serviced on time, which you can read about here. 

Luckily, Mercedes mostly solved the rusting issues for the newer chassis. It can still occur at the bottom of the doors, but that’s dependent on how much of the paint has been chipped away. 

Mercedes CLK500 Specs

Chassis

W209 CLK500

Engine

M113 V8

Displacement

5.0L

Horsepower

302 hp @ 5600 rpm

Torque

339 lb-ft @ 2700 rpm

Transimssion

722.6 Five-Speed Automatic

Weight

3585 lbs

0-60 mph

5.7s

Quarter-mile

13.7s @ 106 mph

W203/W209 C55 & CLK55

As with the W202 and W208 before them, the W203 and W209 are highly connected. The two models, wearing Mercedes’ iconic mid-'00s styling, share suspension components and the all-important drivetrain, giving them similar performance and unique packages. They may not be the newest models, but if you want the AMG styling and badging on a budget, it’s hard to do better than these two. 

Mercedes-Benz-CLK55_Cabriolet_AMG-2003-wallpaper.jpg

Sporting an AMG 5.4L paired with the Speedshift 722.6, both variants have the performance to back up the badge. Peak power figures sit at 362 hp and 376 lb-ft of torque, and while not comparable to today’s AMG models, a sub-five-second sprint to sixty is nothing to scoff at. Combine that power with the hardly-heard (these days) song of a naturally-aspirated German-built V8, and these models deliver what few others can (unless it’s another AMG model, likely in this article).  

Besides the straight-line performance and character of the drivetrain, both models are agile. The troublesome Airmatic air suspension wasn’t an option on either model, so its AMG-tuned coil-spring suspension keeps the ride comfortable but taught. Brakes are larger, too, and if you can nab a 2005 or later CLK55, you’ll also get larger six-piston AMG-specific brakes and a dual-exit exhaust.

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Overall, they can provide one of the most rewarding AMG experiences. They offer an inexpensive entry point to AMG ownership and none of the cost-prohibitive suspension or brake systems that make larger models much more risky. But even better, the aftermarket is beginning to find these models again and produce all sorts of upgrades for the drivetrain and suspension. This might be the best time to own one while looking to improve performance. 

Mercedes C55 & CLK55 AMG Specs

Chassis

W203 C55 AMG

W209 CLK55 AMG

Engine

M113 V8

M113 V8

Displacement

5.5L

5.5L

Horsepower

362 hp @ 5750 rpm

362 hp @ 5750 rpm

Torque

376 lb-ft @ 4000 rpm

376 lb-ft @ 4000 rpm

Transimssion

722.6 Five-Speed Automatic

722.6 Five-Speed Automatic

Weight

3583 lbs

3635 lbs

0-60 mph

4.9s

4.9s

Quarter-mile

13.2s @ 107.3 mph

13.2s @ 107.3 mph

C215/W220 CL55 & S55

The W211 E55, sporting the supercharged M113K engine, is one of the most popular older AMG models. However, they’re still generally just outside our $10,000 budget for a decent one. You can find a lesser W211 with an N/A V8, but the supercharger is a lot of the appeal. Luckily, you can get that exact engine in a slightly bigger package with the CL55 AMG or the S55 AMG.

Mercedes-Benz-CL55_AMG-2000-HD.jpg
Although the pre-facelift CL55 AMG didn't get the supercharged engine, it was still quick, reaching 60mph in under six seconds.

As with the CLK and C-Class, the CL and S-Class are essentially the coupe and sedan variants of one another. Both chassis were near the top of Mercedes’ range in the early aughts, and their included equipment shows. The complex and expensive-to-repair ABC suspension was standard, as were xenon headlights and soft-close doors. Distronic (adaptive) cruise control, keyless go, rear seat entertainment, and ventilated massaging seats were optional but commonly selected in many examples. However, the best part of these two models arrived after a few model years.

From 2003 onwards for the CL and 2002 for the S, the same supercharged 5.4L M113K V8 and gearbox as in the W211, with all the same power potential, was standard. That means a smaller pulley, some supporting mods, and a tune are all that’s needed to have upwards of 500 hp in your twenty-year-old luxury super cruiser. Sure, the suspension system causes a lot of concern, but that fear has driven prices so low. If it is broken, fixing it would give you a ride as nice as anything you could buy today, but there are options to retrofit standard suspension or coilovers to reduce the complexity.

Mercedes-Benz-CL55_AMG-2003-wallpaper.jpg
The facelifted C215 is the better car. It has more power, improved safety features, and slightly better tech.

Still, these make for AWESOME high-speed cruisers if you’re willing to sort them out, which is likely pretty attainable within today’s budget, depending on how cheap your purchase price is. Engine troubles are identical to the above models: oil leaks, various sensors, and pricey ignition services. The supercharger is mostly reliable, but its clutches and bearings wear out with extended mileage, so that may be something you need to tackle, depending on its condition. Other than good transmission service history, look out for faulty electronics. Many of the “luxurious” tech relies on various computer and sensor connections, and twenty years of use can cause some fritz.  

Mercedes CL55 & S55 AMG Specs (Post-2002)

Chassis

C215 CL55

W220 S55

Engine

Supercharged M113K V8

Supercharged M113K V8

Displacement

5.4L

5.4L

Horsepower

493 hp @ 6100 rpm

493 hp @ 6100 rpm

Torque

516 lb-ft @ 2750 rpm

516 lb-ft @ 2750 rpm

Transimssion

722.6 Five-Speed Automatic

722.6 Five-Speed Automatic

Weight

4317 lbs

4300 lbs

0-60 mph

4.6s

4.6s

Quarter-mile

12.5s @ 115 mph

13.5s @ 107 mph

C215/W220 CL600 & S600

Tread very cautiously for your mental health and your wallet’s well-being. This is a risk, but it can result in reward. 

Mercedes-Benz-CL600-2003-Engine_Bay.b60a15c0.jpg

As with their AMG variants listed above, the early CL and W220 S-Class can be had with interesting engines cheaply, but the 600-badged models are special. Where else can you get a German V12—or any V12, for that matter—for under ten grand? That said, the CL600 and S600 cost as little as they do because of the V12 and the maintenance associated with the two variants available. Neither are terrible, but there’s much to be prepared for. 

Pre-2002 models feature the normally aspirated 5.8L M137 V12, while later ones feature the twin-turbocharged 5.5L M275 V12. While the N/A engine has the potential to make better V12 noises, it’s less powerful and reliable than the later engine, with some arguing it’s not worth owning. Oil cooler leaks that required removing the intake manifold, excessive cylinder wear, and a cylinder deactivation system that regularly left half the engine dead were enough for Mercedes to cut production short for the much-improved successor. In contrast, the twin-turbocharged M275 is as stout as an engine can be. Service items like ignition cassettes can be prohibitively expensive, but there aren’t any major or catastrophic issues that can rear their heads. Not to mention the extra performance provided by the M275 over the M137 rockets the CL600 to sixty miles per hour, a full second quicker than earlier models—and that’s with the same 722.6 automatic transmission. 

Mercedes-Benz-CL600-2003-wallpaper.jpg

These two models can be found within the sub-$10,000 price threshold, but it should be noted that they still demand the maintenance of a car that was $150,000 when new, and those within this price range are likely to have some sketchy history. They carry the same ABC suspension as the above cars, and you may want to delete that to save yourself some hassle, but there’s simply no way to undo some of the strain that comes from living with an expensive V12.

Definitely strive to grab yourself a twin-turbocharged M275 car, and while you’d think it’s more problematic than the naturally aspirated one, that’s not necessarily the case. An ignition service alone will run you a few thousand dollars. Any S600 or CL600 available for less than $10,000 will likely need some expensive attention immediately, but get it reasonably sorted, and you’ll have a “500” hp (underrated and easily upped) daily driver that shares a powerplant with the Pagani Huayra* and very likely has massaging front seats and reclining rears. Throw a tune on top of it; this is a seriously fast car.

Mercedes-Benz-CL600-2003-Rear_Three-Quarter.b60a15c0.jpg

Mercedes CL600 & S600 Specs (Post-2002)

Chassis

C215 CL600

W220 S600

Engine

Bi-Turbo M275 V12

Bi-Turbo M275 V12

Displacement

5.5L

5.5L

Horsepower

493 hp @ 5000 rpm

493 hp @ 5000 rpm

Torque

590 lb-ft @ 1800 rpm

590 lb-ft @ 1800 rpm

Transimssion

722.6 Five-Speed Automatic

722.6 Five-Speed Automatic

Weight

4,473 lbs

4,784 lbs

0-60 mph

4.5s

4.6s

Quarter-mile

13.1s @ 110 mph

13.5 @ 107 mph

W210 E300TD & W211 E320 CDI

Is a V12 not different enough for ya? How about something even more European? These two inline-six turbodiesels are very different, but they share the same basic principles, making them a great choice for easy power and killer fuel economy.  

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The OM606, found in the W210 E300TD, among other models, has become such a popular choice for anyone looking for a funky engine swap in the last few years that some have begun to call it the “diesel 2JZ.” The path to diesel power is well documented across the pond, but it’s taken many years for the oil-burning engine to be considered by more than a small group of passionate Mercedes fans. While that’s been a driver of recent E300TD value increases, it also means there’s as much support as ever in the US to take the single-turbo 3.0L inline-six-cylinder engine and triple the power output. Similar to Toyota’s 2JZ, the OM606 needs little—just a larger fuel pump, a good header, and a larger turbocharger—to hit a reliable 400 wheel hp figure and still reach almost 40 miles per gallon while cruising. No need to open it up, just bolt on the new parts, tune it, and send it.

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The 2005-2006 W211 E320 CDI is better if you need something newer or less smelly. Under the hood of the understated sedan is the OM648, a refined evolution of the OM606. It’s a slightly larger engine, displacing 3.2L, with tech like variable valve timing to help it produce over 100 lb-ft of torque more than the OM606 in stock form. It’s similarly reliable to the OM606, and while it does have more engine electronics to work with, giving it the same treatment of a larger turbocharger and fuel pump (from the OM629) is enough to produce AMG-levels of power with far better longevity and fuel economy. Just check out our friends at Black Smoke Ltd on YouTube to see for yourself.

Mercedes E300TD & E320 CDI Specs

Chassis

W210 E300TD

W211 E320 CDI

Engine

OM606

OM648

Displacement

3.0L

3.2L

Horsepower

174 hp @ 5000 rpm

201 hp @ 4200 rpm

Torque

244 lb-ft @ 1600 rpm

369 lb-ft @ 1800

Transimssion

722.6 Five-Speed Automatic

722.6 Five-Speed Automatic

Weight

3640 lbs

3835 lbs

0-60 mph

9.1s

6.6s

Quarter-mile

Is this really relevant?

15.1s @ 91 mph

The M112K Twins

The Mercedes M113K, a supercharged V8 found in cars like the E55 and SL55, is possibly the most notorious engine Mercedes has ever made. It’s the focus of many enthusiasts because of its robustness and penchant for power, but its shadow casts a long way, often obscuring its smaller sibling. 

Mercedes-Benz-SLK32_AMG-2002-HD.jpg

Long before the B8 S4 hit the scene, Mercedes was rocking the boosted V6. The M112K is the supercharged version of the M112 V6, an engine that shared much of the same packaging as the bigger V8, minus two cylinders. This 3.2L V6 found its way into the W203 C32 AMG and the R170 SLK32 AMG (and the Crossfire SRT6), making a healthy 350 hp. Like its big brother, the M112K is an overdrive pulley and some cooling upgrades away from heavy-hitting performance without sacrificing reliability. But, solely because it was a V6 and not a V8, you can still scoop these up for somewhere between $5,000 and $9,000 all day, pending how strict you want to be about vehicle history and condition.

Mercedes_W203_C32_AMG (1).jpg
Click on the image to head over to the Collecting Cars website where you can see plenty more images of this very purple C32 AMG.

Aside from oil leaks, cooling is the biggest enemy of the M112K, so make sure nothing funky is going on, and you’ll be mostly okay. These also have the same types of oil leaks and ignition service deals as the M113 (though they sport only 12 plugs and wires), so keep an eye on that and the 722.6 transmission concerns. 

Mercedes C32 AMG & SLK32 AMG Specs

Chassis

W203 C32 AMG

R170 SLK32 AMG

Engine

Supercharged M112K V6

Supercharged M112K V6

Displacement

3.2L

3.2L

Horsepower

349 hp @ 6100 rpm

349 hp @ 6100 rpm

Torque

332 lb-ft @ 4400 rpm

332 lb-ft @ 4400 rpm

Transimssion

722.6 Five-Speed Automatic

722.6 Five-Speed Automatic

Weight

3,540 lbs

3,220 lbs

0-60 mph

5.2 sec

4.6s

Quarter-mile

13.6 @ 106 mph

13.1 @ 110 mph

Anything with the M273 E55 

While the M113 was an enormous success for Mercedes, it had reached its technological limit by the early ‘00s. Within a few years, Mercedes engineered its replacement, the M273. It fixed several of the earlier engine’s issues while producing more power and efficiency. Engines were offered in 4.7L and 5.5L variants, and it's the latter you want. However, the M273 still seems to be overlooked by many in the aftermarket, and our Mercedes-biased staff members cannot figure out why nobody cares. 

Mercedes-Benz-E550-2010-HD.jpg
The W212 E550 is one of the easiest ways to get yourself an M273 V8.

Sold in many Mercedes models from the mid-2000s through 2011 with a name ending in “550,” the 5.5L variant—the E55—is a nearly 400 hp, 400 ft-lbs, DOHC V8 made entirely from aluminum. It has half the ignition parts as its predecessor and almost none of its oil leaks; it’s an excellent engine with much less to worry about than its predecessors. It’s also incredibly common, so parts are easy to come by. The one big issue to be aware of is that early production engines had a timing chain idler gear made of a weak metal that deteriorated enough over time to cause a timing jump. You can use the serial number to check against documentation online to see if your engine is potentially affected. Smaller but relatively common issues can also arise from regularly failing electronic engine coolant thermostats and broken intake manifold flaps. Beyond that, though, you should be alright.

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The M273 is almost always mated to the 722.9 7-speed auto, except for the W211 E550 4Matic, which continued to use the older five-speed box. The 7-speed shifts much quicker than the 5-speed but can require more regular fluid/filter changes to stay happy; not too significant of a deal, as it's a simpler service than the 722.6 fluid and filter flush is. The 722.9 4Matics can have transfer case and bearing issues, so avoid those if possible. One of our favorites is the W209 CLK550, which was faster than the CLK55 AMG thanks to the snappy 7-speed auto and this spicy V8 under the hood; it’s a 400 hp two-door C-Class. But you could find the M273 in basically everything: The W211 E550, the W212 E550 sedan, the R230 SL550, the W164 ML550, the W219 CLS550, and so on. Every one of these models is under $10,000 these days and can offer you the torquey and reliable V8 of your dreams, as long as you’re willing to work a little bit for it.

Mercedes M273 E55 Specs

Available In These Chassis

W211 & W212 E550

C207 E550

R230 SL550

C216 CL550

C219 CLS550

X164 GL550

W164 ML550

W221 S550

C209 CLK550

W463 G550

Engine

M273 E55 V8

Displacement

5.5L

Horsepower

382 hp @ 6000 rpm

Torque

391 lb-ft @ 2800-4800


author image
Written by :
Danny Kruger

FCP Euro’s Mercedes Expert and longtime “Silver Arrow” tinkerer. Lover of oddball vehicles, and former owner of two 6-speed W203 C-Classes, a Kleemann-modified 5-speed R170 SLK, and a 1987 190E 2.3-16. The current owner of a daily-driven and AMG-swapped W208 CLK430, a 6-speed W203 C350, and a Honda Fit driven in GRIDLIFE’s “Sundae Cup.” ••• Instagram: @danny_playswithcars


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