Mercedes-Benz E55/E63 AMG (W211)

60 sales analyzed · 19 topics from real Bring a Trailer & Cars & Bids comments.

“the most comfortable, stealthy rocket available for daily play or travel”Don_Keefhardt · Jan 28 at 9:26 AM

• M156 head-bolt corrosion and preventive replacement (E63)mechanical
  The 6.2L M156 in the 2007-2009 E63 is known for corroding/stretching head bolts, a several-thousand-dollar job commenters treat as inevitable on 07-09 cars, with ARP fastener sets recommended as a durable fix. Whether every car truly needs it is disputed: some owners report no failure at high mileage, and AMG reportedly characterized it as affecting only a small percentage. …
• M156 valvetrain: cam-lobe wear, lifter tick, cam-adjuster rattlemechanical
  Beyond head bolts, the M156 is watched for camshaft/lobe wear and ticking lifters or cam adjusters, with oil-change history cited as the key defense. Cold-start ticking that clears once driving is reported as common and not necessarily alarming, but worn cam adjuster plates are a real cost during any top-end work. …
• M113K supercharged V8 'bulletproof' reputation (E55)mechanical
  The supercharged 5.4L M113K in the E55 is repeatedly described as essentially bulletproof, routinely reaching 150-200k+ miles on basic maintenance. Owners across many listings cite high-mileage cars still feeling strong, and frame the M113K's durability as a key reason to favor the E55. …
• Airmatic air suspension failure and Arnott / coilover remediesmechanical
  The Airmatic air suspension is the range's most-discussed wear item, with air struts/bags leaking and sagging typically around 70-90k miles. OEM AMG-specific struts run about $1,500 per pair; Arnott replacement bags and full coilover conversions are popular cheaper alternatives, and some owners argue coils actually ride and handle better by shedding weight. …
• Early E55 fuel-tank / fuel-pump leak defect and extended warrantymechanical
  The 2003-2006 E55 (with the issue framed as spanning the 2003-2009 E series) is known for gasoline leaks and fumes from the fuel pump/sender/tank top assembly, subject to a class-action and a Mercedes warranty extension on the pump assembly to 15 years/unlimited miles. Buyers are advised to check for a fuel odor and whether the pump/sender has been addressed. …
• 2003-only radiator coolant-into-transmission leakbuying
  The 2003 cars carry a specific risk of the radiator internally leaking coolant into the transmission, causing damage; commenters call the radiator the number-one preventive replacement on 2003 models and advise checking the coolant reservoir for oil before buying. Later cars are not flagged for this. …
• SBC Sensotronic brake system: warranty and feelmechanical
  Early W211 AMGs use the electro-hydraulic SBC (Sensotronic) braking system, covered under a 25-year warranty tied to manufacture date, and a recurring point of buyer concern. Some find the SBC feel numb; separately, owners consistently praise the cars' outright braking power. …
• AMG wagon production rarityhistory
  The AMG wagons are genuinely scarce US-market cars and their exact counts are debated: the E63 wagon is cited as about 152 US cars, and the E55 wagon variously as 193 (129 of them 2005) or 215 per corrected archive figures. A knowledgeable owner claims to have owned 7 of the 152 E63 wagons, underscoring how small the community is. …
• Values, wagon premium over sedan, and market trajectorymarket
  The wagons command a large and, per many, still-rising premium over sedans, sometimes roughly double sedan money, with commenters calling the wagon market 'on fire' and low-mile examples bringing over half of original MSRP at 17 years old. Not all agree the run continues, as some note softening and RNMs on higher-mileage 'issue' cars, while sedans remain comparative bargains. …
• Rear-facing third-row seat versus spare tire: useful or gimmickownership
  The optional rear-facing third-row seat divides owners: some value it for kids and pay up for it, others call it a gimmick that only fits small children and costs you the spare-tire well. Cars so equipped shipped with only a compressor and fix-a-flat, and the seat can be removed to fit a full-size front wheel; retrofitting the seat reportedly costs around $2k. …
• Sleeper straight-line performance characterdriving
  The defining appeal is a discreet, luxurious body hiding brutal pace: owners delight in embarrassing sports cars, cite ~186 mph capability, and describe effortless high-speed cruising. The cars are repeatedly framed as stealthy 'rockets' that look like a boring old Mercedes. …
• Handling limits: fast in a straight line, not a corner carverdriving
  Owners broadly agree these are highway missiles rather than back-road tools, describing 'boat-like' handling and poor cornering, closer to a Japanese bullet train than an M5 or CTS-V wagon. A minority push back, finding the cars surprisingly nimble with a great ride when the air suspension is healthy. …
• E55 (M113K) versus E63 (M156): character and reliabilitymechanical
  The supercharged E55 and naturally aspirated E63 are constantly compared: E55 partisans cite the M113K's superior durability, low-end torque, and freedom from the head-bolt issue, while E63 advocates revere the M156 as one of the all-time great NA V8s. Preference is genuinely split, with some multi-AMG owners preferring the 63. …
• 722.6 transmission durability and service intervalsmechanical
  The 722.6 five-speed automatic (E55) is regarded as extremely strong, said to handle 800+ hp with regular fluid and supercharger-oil service, though some cars are known for a transmission rebuild around 120k miles if neglected. Recommended intervals cited include 50k trans flushes and supercharger oil and cooling-system service every 50k. …
• Supercharger tuning caution and popular E55 modsmechanical
  The M113K responds hugely to a Kleemann pulley, larger throttle body, and tune, with modded wagons reportedly running mid-11s on slicks; but one owner warns a tune can induce major hesitation because the supercharger clutch can't react fast enough. Supporting service like supercharger gear-oil and diff/trans changes is treated as mandatory. …
• Buying advice: best-you-can-afford, avoid neglected and modified carsbuying
  The consistent counsel is to buy the cleanest, most documented, warm-climate example possible: bargains turn into money pits, most cars on the market were mistreated, and unmolested one-owner cars are hard to find because so many were modified and beaten on. Buyers should assume the potential for large repair bills. …
• Maintenance cost and the need for an independent specialistownership
  Owners report that with a good independent 'guy' rather than the dealer, running costs are reasonable, with one citing about $1,500/year and others describing modest repair lists over long ownership. Dealer pricing is seen as punitive, and knowing where to source parts (e.g., rebuilt shocks) sharply cuts costs. …
• Electrical and voltage gremlins, battery drainmechanical
  The W211 electrical system is flagged as the biggest ownership drawback by some, with cars described as extremely finicky about voltage and prone to parasitic drain; a fresh AGM main battery and healthy aux battery matter because the cars draw power even when parked. Loose battery connections can masquerade as bigger faults. …
• Engine-cover three-pointed star falls offcosmetic
  A small but well-known annoyance: the three-pointed star on the engine cover is prone to falling off, and Mercedes will not sell the star separately, forcing purchase of the whole cover plate. The full plate is inexpensive, but the standalone star is unavailable. …