Segment:
Compact Executive Sedan/Coupe/Wagon
Brand Perception:
Luxury, Performance, Safety, Engineering Excellence
Key Competitors:
BMW 3 Series, Audi A4, Lexus IS, Infiniti G37, Volvo S60
Design Philosophy:
Agile handling, sophisticated styling, advanced technology integration.
Manual Value Proposition:
Provides comprehensive, dealer-level repair and maintenance information for the specific 2012 W204 C-Class, enabling accurate and efficient servicing.
Engine Systems:
Engine Mechanical, Engine Electrical, Fuel System, Ignition System, Emissions Control, Cooling System, Lubrication System, Turbocharging (if applicable)
Powertrain Systems:
Automatic Transmission (7G-TRONIC PLUS), Manual Transmission (if applicable), Drivetrain (RWD/4MATIC)
Chassis Systems:
Suspension (Front & Rear), Steering System, Braking System (ABS, ESP), Wheels & Tires
Body Electrical:
Body Control Module (BCM), Lighting System (Exterior & Interior), Wipers & Washers, Power Accessories (Windows, Locks, Seats), Audio System, Navigation System, Climate Control System
Safety Systems:
Airbag System, Seatbelt System, Pre-Safeยฎ System
Diagnostics Troubleshooting:
Diagnostic Trouble Codes (DTCs), Diagnostic Procedures, Wiring Diagrams, Component Location Charts, Troubleshooting Flowcharts
Maintenance Procedures:
Routine Service, Oil Changes, Filter Replacements, Fluid Checks and Replacements, Spark Plug Replacement, Belt Replacement
Repair Procedures:
Component Removal & Installation, Overhaul Procedures, Adjustments, Calibration
Diagnostics Troubleshooting:
Symptom-based diagnostics, fault code interpretation, electrical system troubleshooting
Special Tools Equipment:
Identification and usage of specialized Mercedes-Benz tools required for specific repairs
Depth Of Coverage:
Dealer-level technical expertise, including detailed repair procedures, specifications, and diagnostic information.
โ๏ธ Engine Specifications
Engine Options 2012:
C250 (1.8L Turbo I4 - M271 DE18 AL), C300 (3.0L V6 - M272 DE30 LA), C350 (3.5L V6 - M272 DE35 LA), C350 (3.5L V6 - M276 DE35 LA - later models), C63 AMG (6.2L V8 - M156 V8)
C250 Horsepower:
201 hp @ 5500 rpm
C250 Torque:
229 lb-ft @ 2000-4300 rpm
C300 Horsepower:
228 hp @ 6000 rpm
C300 Torque:
221 lb-ft @ 2700-5000 rpm
C350 Horsepower:
268 hp @ 6000 rpm (M272) / 302 hp @ 6500 rpm (M276)
C350 Torque:
258 lb-ft @ 2400-5000 rpm (M272) / 273 lb-ft @ 3500-5250 rpm (M276)
C63 Amg Horsepower:
451 hp @ 6800 rpm
C63 Amg Torque:
443 lb-ft @ 5000 rpm
Injection Type:
Direct Injection (M271, M276) / Multi-Point Fuel Injection (M272, M156)
Fuel Type:
Premium Unleaded Gasoline (91 RON or higher recommended)
Spark Plug Type C300:
NGK LFR6AIX-11S (Laser Iridium)
Oil Filter Part Number C300:
Mann-Filter HU 711/1x or equivalent
Engine Oil Specification C300:
MB 229.5 / API SN / SAE 0W-40 or 5W-40
Standard Transmission:
7-Speed Automatic (7G-TRONIC PLUS)
Optional Transmission:
6-Speed Manual (Limited availability on certain models/markets)
Automatic Transmission Modes:
Comfort (C), Sport (S), Manual (M) modes
Transmission Fluid Spec:
MB 236.14 (for 7G-TRONIC PLUS)
Transmission Fluid Capacity 7G Tronic:
Approx. 7.5 - 8.5 liters (dry fill)
Transmission Filter Kit Part Number:
A 203 277 00 95 (example for 722.9)
NHTSA Front Crash Test:
5-Star
IIHS Top Safety Pick:
Yes
Electronic Stability Program:
Standard (ESP - Electronic Stability Program)
Antilock Braking System:
Standard (ABS - Anti-lock Braking System)
Traction Control:
Standard (ASR - Acceleration Slip Regulation)
Airbag System:
Multi-stage front airbags, front side airbags, side curtain airbags, front pelvic airbags.
Seatbelt Pretensioners:
Standard on front seats
Driver Assistance Options
Blind Spot Monitoring:
Optional
Lane Keeping Assist:
Optional
Adaptive Cruise Control:
Optional (DISTRONIC PLUS)
Infotainment System:
COMAND (Cockpit Management and Navigation)
Display Size:
7-inch color display
Connectivity Options:
Bluetooth, USB, AUX input, optional Media Interface
Parking Assistance:
Optional Parktronic with Parking Guidance
Lighting Technology:
Bi-Xenon Headlamps with LED Daytime Running Lights (standard on many trims)
Telematics:
Optional Mercedes-Benz Emergency Call System (eCall)
Oil Change Interval:
Typically every 10,000 miles or 1 year, whichever comes first (depending on driving conditions and oil specification used - refer to manual for precise intervals).
Major Service A Schedule:
Approx. 10,000 miles or 1 year (Engine oil and filter change, tire rotation, inspection of critical components).
Major Service B Schedule:
Approx. 20,000 miles or 2 years (Includes Service A items plus cabin air filter, brake fluid replacement every 2 years).
Transmission Service Interval:
Typically every 40,000-60,000 miles (fluid and filter replacement recommended for longevity).
Coolant Type:
Mercedes-Benz Specification MB 325.0 or 326.0 (Antifreeze/Coolant)
Brake Fluid Type:
DOT 4 Plus (MB 331.0)
Power Steering Fluid:
MB 236.3 (Hydraulic Fluid)
Common Issues W204 V6:
Timing chain guides (M272/M276 engines), intake manifold flaps, oil cooler leaks, camshaft solenoid issues.
Common Issues W204 I4 Turbo:
Turbocharger oil feed line issues, PCV valve failure, ignition coil failures.
Common Issues W204 General:
Wiper linkage seizing, door seal degradation, rear subframe bushings wear, electronic module failures (e.g., SAM units).
Brand Legacy:
Pioneering automotive safety, engineering, and luxury since the late 19th century.
C Class Lineage:
Successor to the W203 C-Class, positioned as Mercedes-Benz's entry-level luxury vehicle.
W204 Facelift:
2011 (significant updates to styling, interior, and technology)
Global Manufacturing Locations:
Germany, South Africa, China, Egypt, Malaysia
๐ Awards & Recognition
IIHS Award:
IIHS Top Safety Pick (multiple years)
Consumers Reports Reliability:
Generally rated as average to above average, with specific model years and engine variants showing variations.
Jd Power Award:
Consistently received high ratings in its segment for performance and design.
