Segment:
Compact luxury roadster / sports car
Brand Perception:
Premium, performance-oriented, sophisticated engineering
Key Competitors:
BMW Z4, Audi TT Roadster, Porsche Boxster (depending on specific engine/trim)
Design:
Dynamic styling, compact proportions, integrated retractable hardtop ('VARIO-ROOF')
Performance Focus:
Rear-wheel drive, balanced chassis, available powerful engines
Coverage Scope:
All models, engines, trim levels, and transmission types
Estimated Page Count:
Extensive (typically 2000+ pages for complete workshop manuals)
Manual Type:
Complete Workshop Service Repair Manual
Digital Format:
Downloadable PDF
Powertrain:
Engine mechanical, engine management, fuel system, cooling system, lubrication system, exhaust system, engine diagnostics.
Drivetrain:
Transmission (automatic and manual where applicable), clutch, driveshafts, differential, axles.
Chassis:
Suspension (front and rear), steering system, braking system (including ABS, ESP), wheels and tires.
Electrical:
Battery, charging system, starting system, lighting, ignition system, instrumentation, wiring diagrams, control modules (ECU, TCU, etc.).
Body And Interior:
Body panels, doors, hood, trunk, convertible roof system, interior trim, seating, climate control, airbags, safety systems.
Maintenance:
Routine service, oil changes, filter replacements, fluid checks and changes, spark plug replacement, brake pad and rotor replacement.
Repair:
Engine component replacement (e.g., starter, alternator, water pump), transmission overhaul, suspension component replacement, brake caliper replacement, electrical component diagnosis and repair.
Troubleshooting:
Diagnostic procedures for common and uncommon faults, fault code interpretation, step-by-step diagnostic trees.
Technical Specifications:
Torque values, clearances, fluid capacities, electrical specifications, component dimensions.
Depth:
Comprehensive; covers basic maintenance to full component overhauls and advanced diagnostics.
Compatibility:
All PC & MAC computers, tablets, smartphones
Required Software:
Adobe Reader (free download)
Printability:
Printable by page, chapter, or entire manual
Digital Binding:
N/A (downloadable file)
Digital Medium:
N/A (digital format)
Delivery Method:
Instant email delivery upon payment confirmation
Engine Options:
Covers various engine configurations including: SLK 250 (1.8L Turbocharged I4), SLK 350 (3.5L V6), SLK 55 AMG (5.5L V8 - for specific AMG variants within R172). Specific engines likely covered in detail are the M271 (1.8L) and M276 (3.5L).
Horsepower Range:
Approx. 201 hp (SLK 250) to 302 hp (SLK 350) and potentially 415 hp for SLK 55 AMG.
Torque Range:
Approx. 229 lb-ft (SLK 250) to 273 lb-ft (SLK 350) and potentially 395 lb-ft for SLK 55 AMG.
Fuel Delivery:
Direct injection (for most modern variants) or multi-point injection.
Fuel Type:
Premium Unleaded Gasoline (91 octane or higher)
ECU Type:
Bosch Motronic or similar advanced engine control units (specific part numbers available within manual).
Transmission Type Standard:
Likely 7-speed automatic transmission (7G-TRONIC PLUS) for many R172 models.
Transmission Type Optional:
Manual transmission availability may vary by market and engine (less common for later R172 models).
Transmission Modes:
Comfort (C), Sport (S), and potentially Manual (M) modes with paddle shifters.
Automatic Transmission Fluid:
Specific Mercedes-Benz approved ATF (e.g., MB-Approval 236.14 or newer specified by model variant).
Length:
Approx. 160.6 inches (4080 mm)
Width:
Approx. 70.7 inches (1796 mm)
Height:
Approx. 51.7 inches (1314 mm)
Wheelbase:
Approx. 94.5 inches (2400 mm)
Curb Weight:
Varies by engine/options, typically around 3,300 - 3,600 lbs (1500 - 1630 kg)
NHTSA Rating:
Likely 5-star ratings in relevant categories for its era, but specific official ratings should be cross-referenced.
Stability Control:
Electronic Stability Program (ESP) with Traction Control
Braking Systems:
Anti-lock Braking System (ABS), Brake Assist (BAS), Electronic Brake-force Distribution (EBD)
Driver Assistance:
Optional: DISTRONIC (adaptive cruise control), COLLISION PREVENTION ASSIST, ATTENTION ASSIST.
Airbags:
Front airbags, side airbags, knee airbags (driver), integrated head/thorax airbags.
Rollover Protection:
Pop-up roll bars integrated behind the headrests.
Infotainment System:
COMAND APS or Audio 20 infotainment system with display screen, CD/DVD player, Bluetooth connectivity, and optional navigation.
Adaptive Cruise Control:
DISTRONIC (optional feature)
Parking Assistance:
Optional: PARKTRONIC parking sensors, REAR VIEW CAMERA.
Bluetooth:
Standard for audio streaming and hands-free calling.
Neck Heating:
AIRSCARF system (optional, blows warm air around the neck from the headrests).
Oil Change Interval:
Typically every 10,000 miles or 12 months, whichever comes first (as per Assyst Plus system, check manual for specific engine/oil type).
Major Service Interval:
Variable based on Assyst Plus system, typically around 20,000-30,000 miles for inspections, brake fluid flush every 2 years, spark plugs often at 60,000-100,000 miles depending on type.
Engine Oil:
Mercedes-Benz Approved Synthetic Engine Oil, e.g., Mobil 1 ESP Formula 0W-40 or 5W-40 (refer to manual for exact MB-Approval number for specific engine).
Coolant:
Mercedes-Benz Genuine Antifreeze/Coolant (e.g., ZEREX G-48 or equivalent MB-Approval 325.0 or 326.0).
Brake Fluid:
DOT 4 PLUS or equivalent MB-Approval 331.0.
Common Faults R172:
Occasional issues reported with the Vario-Roof hydraulic system (leaks, pump failures), ignition coil failures, and some electrical gremlins (e.g., sensor issues). Exhaust manifold issues can occur on certain engine variants. Check manual for specific troubleshooting.
Brand Focus:
Mercedes-Benz has a long history of producing luxury vehicles, sports cars, and roadsters, known for engineering excellence and comfort.
Predecessors:
The R172 SLK-Class is the successor to the R171 SLK-Class, which itself followed the iconic R170.
Key Changes From R171:
Updated styling, new engine options (e.g., introduction of the 1.8L turbo-four), improved interior, enhanced technology, and the 'AIRSCARF' neck-level heating system.
Manufacturing Location:
Bremen, Germany
Previous Generation Awards:
The SLK-Class has historically received awards such as 'Most Beautiful Car' at the Geneva Motor Show for its predecessors, reflecting its stylish design.
Consumer Reviews General:
Generally well-received for its blend of performance, comfort, and the innovative Vario-Roof system. Specific ratings for the 2014 model would be found in automotive publications of that period.
