Segment:
Mid-size Luxury Sedan
Target Audience:
Consumers seeking luxury, comfort, advanced technology, and premium brand image
Key Competitors:
BMW 5 Series, Audi A6, Lexus GS, Cadillac CTS, Acura TL
Vehicle Highlight 1:
Sophisticated design and premium interior appointments
Vehicle Highlight 2:
Comfortable and refined ride quality
Vehicle Highlight 3:
Advanced safety systems and driver assistance technologies
Value:
Essential resource for understanding vehicle operation, maintenance, and safety features, ensuring optimal ownership experience.
Powertrain:
Engine operation, fuel system, lubrication, cooling, ignition, exhaust
Chassis:
Suspension, steering, brakes, wheels, tires
Electrical:
Lighting system, battery, starter, charging system, instrument cluster, infotainment, climate control, power accessories
Body And Interior:
Door locks, windows, seats, safety restraints, comfort features, appearance care, cleaning
Operation:
Starting and driving the vehicle, operating comfort and convenience features, using the climate control system, operating infotainment system
Maintenance:
Basic checks (oil, coolant, tires), fluid refill procedures, appearance care, basic cleaning
Troubleshooting:
Taking care of the unexpected, warning lamps and messages, basic emergency procedures
Depth:
Owner-level maintenance, operation, and basic troubleshooting; does not cover in-depth repair diagnostics or component-level disassembly
๐ Manual Specifications
File Type:
PDF (Portable Document Format)
Quality:
High resolution, designed for digital viewing and potential printing; identical to original factory manuals
Binding:
Not Applicable (Digital Download)
Paper Type:
Not Applicable (Digital Download)
โ๏ธ Engine Specifications
Engine Code:
M272 (often superseded by M276 in later models, but M272 is prevalent for 2012 E350)
Engine Type:
3.5L V6, Naturally Aspirated
Horsepower:
268 hp @ 6000 rpm
Torque:
258 lb-ft @ 2400-5000 rpm
Fuel Delivery:
Electronic Fuel Injection (EFI)
Fuel Type:
Premium Unleaded Gasoline (91 octane recommended)
Bore X Stroke:
3.70 in x 3.14 in (94.0 mm x 80.6 mm)
Compression Ratio:
10.7:1
Engine Oil Capacity:
7.0 quarts (6.6 liters)
Engine Oil Specification:
MB 229.5 or MB 229.51 (SAE 0W-40 or 5W-40 Synthetic)
Air Filter Part Number Example:
A2720900001 (or equivalent)
Cooling System Capacity:
Approximately 9.5 quarts (9.0 liters)
Transmission Type:
7-speed Automatic (7G-TRONIC PLUS)
Optional Transmission:
N/A for E350 Sedan in 2012 (AWD was optional)
Shift Modes:
Comfort (C) and Sport (S) modes
Transmission Fluid Specification:
MB 236.14 (or equivalent synthetic ATF)
Transmission Fluid Capacity:
Approximately 8.5 quarts (8.0 liters) for torque converter, dry fill varies
NHTSA Overall Rating 2012:
5-Star Overall Safety Rating (for 2012 E-Class Sedan)
IIHS Top Safety Pick:
Yes (for 2012 E-Class Sedan)
Electronic Stability Program:
Standard (ESPยฎ)
Anti-Lock Braking System:
Standard (ABS)
Tire Pressure Monitoring:
Standard
Airbags:
Dual-stage front airbags, front side airbags, rear side airbags, full-length window curtain airbags, driver knee airbag
Seat Belts:
3-point inertia-reel seat belts with pretensioners and force limiters
Child Seat Anchors:
ISOFIX/LATCH system
Driver Assistance Features Mentioned
Driver Assistance:
Collision Prevention Assist (basic version), Attention Assist (driver fatigue detection)
Infotainment System:
COMAND System (Cockpit Management and Data System)
Display Size:
7-inch or 8-inch color display
Audio Features:
AM/FM radio, CD/DVD player, USB/Auxiliary inputs, Bluetooth audio streaming
Driver Assistance Features:
Adaptive Highbeam Assist, PARKTRONIC parking assist, Lane Keeping Assist (optional), Blind Spot Assist (optional), Distronic PLUS adaptive cruise control (optional)
Connectivity Options:
Bluetooth hands-free calling, optional Mercedes-Benz mbrace telematics service
Oil Change Interval:
Typically every 10,000 miles (16,000 km) or 12 months, whichever comes first, subject to driving conditions and oil type (using synthetic oil and appropriate MB spec).
Major Service Interval Example:
Service A (around 10,000-13,000 miles) and Service B (around 20,000-26,000 miles), alternating thereafter, covering more comprehensive checks and fluid changes.
Brake Fluid:
DOT 4 Plus (or MB 331.0)
Coolant:
MB 325.0 or MB 326.0 (Ethylene Glycol based, blue or green color)
Power Steering Fluid:
MB 236.3 (ATF type, typically)
Known Issues Common To W212 E350
Common Issue 1:
M272/M273 engine balance shaft spline wear (for earlier M272 variants, but relevant to pre-2012 models; 2012 E350 has updated design or M276 engine depending on build date and market)
Common Issue 2:
Oil cooler leaks (gasket failure)
Common Issue 3:
Sagging headliner or interior trim wear
Common Issue 4:
Transmission issues (e.g., harsh shifting, torque converter problems, though less common with 7G-TRONIC PLUS)
Brand History:
Mercedes-Benz has a long-standing reputation for luxury, engineering excellence, and automotive innovation since its inception in the late 19th century.
E Class Lineage:
The E-Class represents the executive car segment for Mercedes-Benz, with a lineage tracing back to models like the W123, W124, and W210/W211 generations.
W212 Generation:
The W212 E-Class was introduced in 2009 for the 2010 model year, representing the fifth generation of the E-Class. The 2012 model year saw minor updates and feature availability.
Manufacturing Locations:
Primary assembly in Sindelfingen, Germany; also produced in Tuscaloosa, Alabama, USA, and Beijing, China (for local markets).
๐ Awards & Recognition
IIHS Award 2012:
IIHS Top Safety Pick
Auto Magazine Awards 2012:
Often cited for its luxury, comfort, and safety features by automotive publications, though specific awards may vary.
Safety Certification:
Meets or exceeds all applicable U.S. Federal Motor Vehicle Safety Standards (FMVSS).
