Segment:
Executive Sedan / Luxury Mid-size Car
Target Audience:
Affluent individuals, business professionals
Primary Competitors:
BMW 5 Series, Audi A6, Lexus GS, Cadillac CTS, Jaguar XF
Design Philosophy:
Elegant, modern, aerodynamic, retaining classic Mercedes-Benz styling cues
Technology Focus:
Emphasis on advanced safety, comfort, and infotainment systems
Powertrain Options:
Range of efficient and powerful gasoline and diesel engines
Engine Mechanical:
Complete overhaul, timing systems, lubrication, cooling, fuel injection, emission control
Engine Electrical:
Ignition system, starter, alternator, sensors, actuators, engine control module (ECM)
Transmission Mechanical:
Automatic transmission (7G-TRONIC PLUS) overhaul, clutch packs, torque converter, valve body
Transmission Electrical:
Transmission control module (TCM), sensors, solenoids, gear selection mechanisms
Chassis Suspension:
Front and rear suspension, struts, shock absorbers, control arms, anti-roll bars, airmatic (if applicable)
Brakes:
Front and rear brake systems, ABS, ESP, brake assist, parking brake, hydraulic components
Steering:
Power steering system, steering column, rack and pinion, steering angle sensor
Body And Interior:
Body panels, doors, hood, trunk, interior trim, seats, sunroof, windows
Electrical System General:
Lighting, power windows, central locking, wipers, horn, battery, charging system
Climate Control:
HVAC system, A/C compressor, refrigerant, climate control module, blower motor
Infotainment And Navigation:
Audio system, COMAND system, navigation unit, Bluetooth, instrument cluster
Safety Systems:
Airbags, seatbelt pre-tensioners, SRS module, advanced driver assistance systems (ADAS)
Scheduled Maintenance:
Routine service intervals, oil changes, filter replacements, inspections
Troubleshooting:
Diagnostic procedures, fault code interpretation, symptom-based diagnostics
Repair And Replacement:
Step-by-step instructions for component removal, repair, and installation
Diagnostics:
ECM data stream analysis, component testing, wiring diagrams interpretation
Calibration And Programming:
Key programming, module coding, sensor calibration
Torque Specifications:
Precise torque values for all critical fasteners
Depth Level:
Complete Rebuild and Overhaul
Diagnostic Capability:
Advanced diagnostic strategies and flowcharts
Wiring Diagrams:
Detailed electrical schematics for all systems
Special Tools:
Identification and usage of specialized Mercedes-Benz tools
Engine Codes Common:
M272 (3.5L V6), M276 (3.5L V6 - later models), M278 (4.7L V8 Biturbo), OM642 (3.0L V6 Diesel), OM651 (2.1L I4 Diesel)
Displacement Example Gas:
3.5 Liters (3498 cc)
Displacement Example Diesel:
3.0 Liters (2987 cc)
Horsepower Example Gas:
268 hp @ 6000 rpm (M272)
Torque Example Gas:
258 lb-ft @ 2400 rpm (M272)
Horsepower Example Diesel:
211 hp @ 3400 rpm (OM642)
Torque Example Diesel:
391 lb-ft @ 1600 rpm (OM642)
Fuel Delivery Gas:
Electronic Fuel Injection (EFI), Direct Injection (DI) on later models
Fuel Delivery Diesel:
Common Rail Direct Injection (CDI)
Fuel Type Gas:
Premium Unleaded Gasoline (91 RON or higher recommended)
Fuel Type Diesel:
Diesel Fuel (ULSD - Ultra Low Sulfur Diesel)
Coolant Type:
MB Approved Antifreeze/Coolant (e.g., Glysantin G48 or equivalent)
Oil Spec Gas:
MB Approval 229.5 (e.g., Mobil 1 0W-40, Castrol Edge 0W-40)
Oil Spec Diesel:
MB Approval 229.51 or 229.52 (e.g., Mobil 1 ESP Formula 5W-30)
Length:
Approx. 191.7 inches (4868 mm)
Width:
Approx. 73.7 inches (1872 mm)
Height:
Approx. 57.7 inches (1465 mm)
Wheelbase:
Approx. 115.7 inches (2937 mm)
Headroom Front:
Approx. 37.5 inches (953 mm)
Legroom Front:
Approx. 41.7 inches (1059 mm)
Trunk Volume:
Approx. 15.9 cubic feet (450 liters)
Curb Weight Est Start:
Approx. 3700 lbs (1680 kg) for E350 RWD
Wheel Bolt Pattern:
5x112
Wheel Size Common:
17-inch or 18-inch alloy wheels
NHTSA Overall Rating:
Likely 5-Star (based on contemporary testing for similar models)
IIHS Top Safety Pick:
Likely a Top Safety Pick recipient
ABS:
Standard Anti-lock Braking System
Esp:
Standard Electronic Stability Program (ESP)
Brake Assist:
Standard Brake Assist (BAS)
Adas Available:
Optional features like Distronic Plus (adaptive cruise control), Lane Keeping Assist, Blind Spot Assist, Pre-Safe system
Airbags:
Front airbags, front side airbags, curtain airbags, driver's knee airbag
Seatbelts:
3-point inertia-reel seatbelts with pre-tensioners and belt force limiters
Structural Design:
High-strength steel safety cell, crumple zones
Head Unit:
COMAND APS (Cockpit Management and Navigation)
Display Size:
7-inch or 8-inch color display
Audio System:
Standard 10-speaker system, optional Harman Kardon Logic 7 surround sound
Standard Driver Assistance:
ATTENTION ASSIST (driver fatigue detection)
Optional Adas Packages:
Driving Assistance Package (Distronic Plus, BAS Plus, Pre-Safe Brake, Active Lane Keeping Assist, Active Blind Spot Assist)
Bluetooth:
Bluetooth interface for hands-free calling and audio streaming
Usb Aux:
Optional USB and auxiliary audio inputs
Headlights:
Halogen projector or optional Bi-Xenon headlamps with LED daytime running lights
Oil Change Interval:
Flexible service interval (ASSYST PLUS), typically every 10,000-15,000 miles or 12 months, depending on driving conditions
Major Service Interval:
Service B typically around 20,000-30,000 miles, including brake fluid flush, cabin filter, and more comprehensive checks
Brake Fluid:
DOT 4 PLUS (MB Approval 331.0)
Coolant:
MB Approved Antifreeze/Coolant (G48 or equivalent)
Power Steering Fluid:
MB Approved Hydraulic Fluid (e.g., Pentosin CHF 11S or equivalent)
Common Complaints Early Models:
M272/M273 engine balance shaft sprocket wear (pre-2010 but can affect early W212 if engine carried over), oil cooler leaks, O2 sensor failures
Common Complaints General:
Transmission control module (TCM) issues, COMAND system glitches, air suspension (if equipped) leaks, water pump failures
Diesel Specific Issues:
OM642: Glow plug failures, EGR valve issues, diesel particulate filter (DPF) regeneration problems, turbocharger actuator issues
Filter Part Numbers Example
Oil Filter E350 M272:
A2721840025 (or equivalent Mann-Filter, Mahle)
Cabin Air Filter:
A2128300318 (or equivalent activated carbon filter)
Manufacturer Legacy:
Mercedes-Benz, established 1926, renowned for engineering, luxury, and safety
E Class Lineage:
Successor to the W211 E-Class, part of a long line of executive sedans dating back to the Ponton models
W212 Introduction:
Introduced at the 2009 Geneva Motor Show, significant redesign from W211
Production Plants:
Sindelfingen, Germany; Tuscaloosa, Alabama, USA; Beijing, China (for local market)