Step-by-step instructions for component removal, replacement, and reassembly for all covered systems.
Diagnostics:
OBD-II diagnostics, proprietary Mercedes-Benz diagnostic fault codes (DTCs), live data interpretation, actuator testing.
Wiring Diagrams:
Comprehensive electrical schematics for all major systems, including component locations and connector views.
Technical Depth
Depth:
Comprehensive coverage from basic fluid changes to advanced electronic system diagnosis and major component overhauls. Suitable for professional technicians and advanced DIY enthusiasts.
📊 Manual Specifications
File Format
File Format Details:
Searchable digital format (e.g., .exe, .chm, or PDF). Allows for quick navigation, keyword searching, and printing of specific sections.
Print Quality
Print Quality:
High-resolution diagrams, clear text, and professional layout for easy reading and comprehension.
Binding Type
Binding Type:
Not applicable (Software format)
Paper Type
Paper Type:
Not applicable (Software format)
⚙️ Engine Specifications
Primary Engine
Engine Code:
M272
Engine Type:
3.5L V6 SOHC (24-valve) with Variable Valve Timing (VVT)
Performance
Horsepower:
268 hp @ 6000 rpm
Torque:
258 lb-ft @ 2400-5000 rpm
Fuel System
Fuel Delivery:
Sequential Multi-Port Fuel Injection (MPI)
Fuel Type:
Premium Unleaded Gasoline (91 octane or higher recommended)
Engine Management
Engine Control Unit:
ME 9.7
Emission Control:
California ULEV II certified (model dependent)
🔧 Transmission
Standard
Transmission Type:
7-speed Automatic (7G-TRONIC)
Transmission Control:
Electronically controlled with TouchShift
Features
Drive Modes:
Comfort (C) and Sport (S) modes
Fluid Specifications
Transmission Fluid Type:
MB 236.14 (ATF) - e.g., Pentosin ATF1 or equivalent
📐 Dimensions
Exterior
Length:
160.7 inches (4081 mm)
Width:
70.5 inches (1791 mm)
Height:
51.0 inches (1296 mm)
Wheelbase:
94.5 inches (2400 mm)
Weights
Curb Weight:
Approx. 3350 lbs (1520 kg)
Cargo
Trunk Volume Roof Up:
Approx. 10.2 cu ft (288 L)
Trunk Volume Roof Down:
Approx. 5.2 cu ft (145 L)
🛡️ Safety Features
Ratings
NHTSA Front Crash Rating:
4 Stars (Driver), 4 Stars (Passenger)
IIHS Top Safety Pick:
Yes
Active Features
Electronic Stability Program:
Standard (ESP)
Anti Lock Braking System:
Standard (ABS)
Traction Control:
Standard (ASR)
Passive Features
Airbags:
Driver and front passenger front airbags, side airbags (head and thorax), knee airbags (driver).
Rollover Protection:
Pop-up roll bars (deploy automatically)
💡 Technology Features
Infotainment
Audio System:
Standard Audio 20 CD with 5-inch color display. Optional COMAND APS with HDD navigation, SiriusXM satellite radio, Harman Kardon surround sound.
Connectivity:
Bluetooth connectivity for hands-free calling (Tele Aid/mbrace system). Optional Media Interface for iPod/USB integration.
Driver Assistance
Lighting Technology:
Bi-Xenon headlights with Active Curve Illumination, LED daytime running lights (DRLs).
Typically 10,000 miles or 12 months, whichever comes first (depending on driving conditions and oil used). Indicated by 'Service A' or 'Service B' on the instrument cluster.
Spark Plug Replacement:
Approximately 60,000 miles (check specific recommendations for M272 engine)
Brake Fluid Change:
Every 2 years (DOT 4 Plus specified)
Transmission Fluid Change:
Typically 40,000-60,000 miles or as indicated by the vehicle's service computer (often considered 'lifetime' by some but recommended for longevity).
Fluid Specifications
Engine Oil Type:
SAE 0W-40, API SN, ACEA A3/B4, MB-Approval 229.5
Coolant Type:
MB 325.0 / 326.0 (Ethylene Glycol based, blue color)
Power Steering Fluid:
MB 236.3 (ATF Dexron II specification)
Known Issues
Common Wear Items:
Front suspension components (control arm bushings, sway bar links), accessory drive belt and tensioner, water pump seal leaks, ignition coils, mass airflow sensor (MAF).
Timing chain tensioner wear (especially on earlier M272 versions, though less prevalent on 2010 models compared to earlier years), balance shaft gear wear (resulting in P0016/P0017 codes).
📚 Vehicle History
Brand Heritage
Heritage Focus:
Mercedes-Benz has a long-standing reputation for luxury, engineering excellence, and performance, particularly in sports car development (e.g., 300SL 'Gullwing').
Model Evolution
R171 Generation:
The R171 generation (2004-2011) represented a significant evolution from the R170 SLK, featuring a more aggressive styling, advanced technology, and the introduction of the VARIO-ROOF hardtop across the range.
Production
Production Years:
2004-2011 (R171 platform)
Manufacturing Location:
Bremen, Germany
🏆 Awards & Recognition
Recognitions
Typical Awards:
Consistently praised by automotive journalists for its styling, performance, and the innovative VARIO-ROOF system. Frequently appeared on 'Best Convertibles' lists.
Ratings
Consumer Reports Reliability:
Variable; generally average to above average for its class, but specific model years and common issues should be investigated.
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