Mercedes-Benz CLK55 AMG (C208)

48 sales analyzed · 18 topics from real Bring a Trailer & Cars & Bids comments.

“And that 5.4 V8 is a 1,000,000 mile engine….super reliable and quick.”littlehandegan · Jul 9, 2024 at 2:22 PM

• M113 5.4L V8 longevity and bulletproof reputationmechanical
  The naturally aspirated 5.4L M113 V8 is the car's defining strength and is universally described as bulletproof, with owners and sellers citing 250k-500k mile capability given regular maintenance. Commenters frame it as one of the best V8s ever built and note plugs and coils as the main scheduled wear items around 100k-200k miles. …
• 722.6 five-speed automatic: overbuilt but not immune to failuremechanical
  The 722.6 (5G-Tronic) automatic is widely considered robust and overbuilt, rated for very high torque and shared across many Mercedes models. However, owners report the conductor plate and a fluid-contamination line as the usual trouble spots, at least one out-of-warranty major failure, and confusion over whether the once 'lifetime sealed' unit needs periodic service. …
• Straight-line performance and 'quickest Mercedes of its era'driving
  Commenters repeatedly note the CLK55 was the fastest/quickest production Mercedes sold in the US at its introduction, crediting its low ~3,400 lb curb weight and the big V8. Owners describe explosive, traction-breaking acceleration and a car that turns into a 'hard snorting beast' under throttle. …
• Pre-merger, hand-built AMG provenance ('last true AMG')history
  The C208 CLK55 is prized as one of the last cars built entirely in the AMG factory before AMG was fully integrated into Mercedes for 2003. Enthusiasts describe it as a 'true AMG' from before the merger and note the W208 body was only used for this generation of the 55. …
• Fragile front air dam and NLA lower grille barcosmetic
  The AMG front bumper's low valence will not clear standard parking curbs and cracks easily, and the horizontal lower grille bar between the fog lights is missing on a large share of surviving cars. Mercedes no longer makes the piece; owners resort to aftermarket mesh replacements, and the front spoiler is repeatedly cited as hard to keep undamaged. …
• Convertible soft-top hydraulicsmechanical
  Cabriolet tops rely on hydraulic cylinders, a pump, rams and a controller module that leak and weaken with age, producing hesitation and fluid spots. Repairs range from cheap DIY O-ring rebuilds to costly pump/module and new-canvas replacement; a boot/tonneau cover in the trunk being out of place can also disrupt top operation. …
• A/C compressor and evaporator core failuresmechanical
  Air conditioning problems are common: compressors fail and require replacement, evaporator cores are cited as a frequent and very expensive failure, and some cars lose refrigerant repeatedly from leaks that are hard to trace. Full system replacement is quoted around $2,900, and multiple sellers proactively replace the compressor, drier and seals before sale. …
• Instrument cluster and radio dead pixels / LCD failurecosmetic
  The digital clock inset in the tach, the cluster LCD, and the factory head unit are all known to lose pixels with age. This is treated as an easy, expected fix rather than a dealbreaker: specialist rebuilders (Atlanta Speedometer around $350, Southern Electronics of Richmond) restore the displays, and some sellers replace the LCD screens outright before sale. …
• Interior aging: seat bladders, headliner sag, leather shrinkagecosmetic
  The multicontour seats use pneumatic bladders that fail or reverse direction over time, the headliner sags, and the fully leather-wrapped dash and door panels shrink, bubble or lift with UV exposure, likened to the shrinkage seen on Ferrari and Porsche interiors. Owners treat these as normal wear on a 20-plus-year-old car rather than fundamental faults. …
• Market value: undervalued bargain versus softeningmarket
  Sentiment is split. Many commenters call the CLK55 the best value in the modern-classic AMG market and a future collectible, with the W208 gaining recognition as an underappreciated bargain. …
• Production numbers and raritymarket
  Enthusiasts consistently describe the car as rare but disagree on figures: roughly 1,300-1,340 delivered to the US is the most-cited number, while others recall as few as 800, and specific color/spec combinations are said to narrow survivors to double digits. There is no authoritative production figure in the threads. …
• Chassis identity: C208/A208, C-class underpinnings, and body yearshistory
  Buyers are frequently confused because the CLK looks like a W210 E-class coupe but is built on C-class underpinnings; the coupe is the C208 and the cabriolet the A208. The CLK55 arrived for 2001 as a coupe only, with the cabriolet added for 2002, and 2003 began the next (W209) generation. …
• AMG monoblock versus two-piece wheels and uneven tire wearcosmetic
  The car came with either 17-inch AMG monoblock wheels (said to be exclusive to the coupe) or optional two-piece staggered five-spoke wheels; the monoblocks are hard to find, while the two-piece design is easier to source and refinish. Owners note the AMG suspension geometry causes uneven tire wear and that the car goes through tires. …
• Rust and door-sill drainage designbuying
  One owner reports the cars are prone to rust due to poor drainage-hole design under the doors, describing a completely rotted passenger door bottom even on a California car. Salt-belt buyers actively avoid winter use to prevent rust, making undercarriage and door-sill inspection important, though clean southern and California examples are common. …
• Motor and transmission mounts as consumablesownership
  Engine and transmission mounts are treated as routine wear items that need replacement, with one high-mileage owner saying they should be renewed every couple of years and buyers routinely asking whether they've been done. Sellers commonly report mounts as original at moderate mileage. …
• Manual-swap candidacydriving
  Several enthusiasts see the CLK55 as an ideal manual-conversion candidate given its compact size, relatively light weight and capable handling, noting the swap can be done with period Mercedes parts. Others simply lament that it should have come as a manual, given its main rival was the BMW M3. …
• DIY-friendliness and maintenance accessibilityownership
  Owners praise the CLK55 as easy to maintain and DIY-friendly, from an era before tech took over the car, making it accessible to independent mechanics. Spark plug changes are manageable with the right MB offset wrench, and several long-term owners report keeping these running deep into six-figure mileage without major expense despite the $85k-plus original price. …
• Driving character: gentleman's muscle car and grand tourerdriving
  Owners describe the CLK55 as a German take on the American muscle car, a RWD V8 coupe/convertible with effortless torque that is also a refined, quiet grand tourer. It is repeatedly called one of the best driving cars ever, more nimble than the heavier E- and S-class AMGs, and a car that puts a smile on the driver every time. …