🏷️ Basic Information

Make:

Mercedes-Benz

Model:

E-Class

Model Code:

W212

Year:

2011

Chassis Code:

W212

Chassis Designation:

Sedan, Estate (S212)

👋 Introduction

Segment:

Executive Sedan/Estate

Positioning:

Premium mid-size luxury vehicle, known for comfort, technology, and build quality.

Key Competitors:

BMW 5 Series (F10), Audi A6 (C7), Lexus GS (L10), Jaguar XF (X250).

Design Philosophy:

Elegant, sophisticated styling with a focus on aerodynamic efficiency and iconic Mercedes-Benz design cues.

Technology Integration:

Advanced safety, driver assistance, and infotainment systems representing the forefront of automotive technology at the time.

Performance And Efficiency:

A range of powerful and efficient engines paired with sophisticated transmissions, offering a balance of performance and economy.

📋 Manual Details

Coverage Type:

All Models & All Repairs A-Z

Applicability:

Vehicle Specific, Dealer Technician Level

Estimated Page Count:

Extensive (typically 2000+ pages for a complete dealership manual set)

Type:

Service and Repair Manual

Language:

English

Format:

Digital (likely PDF, searchable)

📖 Manual Coverage

Engine Mechanical:

Engine assembly, cylinder head, valve train, crankshaft, pistons, connecting rods, lubrication system, cooling system, timing system, fuel injection system (mechanical aspects).

Engine Management:

Engine Control Module (ECM) operation, sensors, actuators, ignition system, emission control systems, diagnostic trouble codes (DTCs).

Transmission Mechanical:

Automatic transmission (e.g., 7G-TRONIC PLUS), manual transmission (if applicable), clutch, torque converter, gear selection, hydraulic control system.

Transmission Electronics:

Transmission Control Module (TCM) operation, shift solenoids, sensors, adaptive learning, troubleshooting.

Drivetrain:

Drive shafts, constant velocity (CV) joints, differential, axles, wheel bearings.

Suspension:

Front and rear suspension systems, springs, shock absorbers, control arms, bushings, anti-roll bars, airmatic (if applicable), alignment specifications.

Steering:

Power steering system (hydraulic or electric), steering column, steering rack, tie rods, steering angle sensor.

Brakes:

Hydraulic brake system, ABS (Anti-lock Braking System), ESP (Electronic Stability Program), brake discs, brake pads, brake calipers, brake lines, parking brake, brake fluid specifications.

Electrical System:

Battery, alternator, starter motor, wiring diagrams, fuses, relays, lighting systems (headlights, taillights, interior), horns.

Body And Frame:

Body panels, doors, hood, trunk, windows, sunroof, chassis components, corrosion protection.

HVAC:

Heating, Ventilation, and Air Conditioning (HVAC) system, climate control, refrigerant, blower motor, evaporator, condenser, cabin filter.

Infotainment And Electronics:

COMAND infotainment system, navigation, audio system, instrument cluster, comfort electronics, seat controls, keyless-go, telematics.

Driver Assistance Systems:

PARKTRONIC, DISTRONIC PLUS, LANE KEEPING ASSIST, BLIND SPOT ASSIST, adaptive cruise control, radar sensors, camera systems.

Maintenance Procedures:

Routine service checks, oil changes, filter replacements, fluid level checks and top-ups, spark plug replacement, brake pad replacement, belt inspections.

Diagnostic Procedures:

Symptom-based troubleshooting, diagnostic trouble code (DTC) interpretation and resolution, component testing, electrical circuit testing.

Repair Procedures:

Step-by-step instructions for component removal, installation, and repair for all major systems. Includes torque specifications, special tool requirements, and adjustment procedures.

Overhaul Procedures:

Complete engine and transmission overhaul instructions, including disassembly, inspection, measurement, and reassembly with critical tolerances.

Electrical Diagnostics:

Detailed wiring diagrams, pin-out data for ECUs and connectors, troubleshooting flowcharts for electrical faults.

Body Repairs:

Body panel alignment, dent repair, welding procedures, paint preparation, door and window mechanism adjustments.

Depth:

Comprehensive, from basic maintenance to advanced diagnostics and complete component rebuilds.

Documentation Level:

Official OEM (Original Equipment Manufacturer) level detail, used by certified technicians.

📊 Manual Specifications

Format:

PDF (Portable Document Format)

Searchability:

Fully searchable text, allowing quick access to specific topics and keywords.

Resolution:

High-resolution images and diagrams for clarity.

Content Type:

Text, diagrams, illustrations, schematics, photographs.

Binding:

N/A (Digital Format)

Paper:

N/A (Digital Format)

⚙️ Engine Specifications

Engine Options Examples:

E 350 (M272 V6, later M276 V6), E 550 (M273 V8, later M278 V8 Bi-turbo), E 250 CDI (OM651 Diesel), E 350 CDI (OM642 Diesel).

E350 M272 V6 3.5L:

3.5L V6, approximately 268-295 hp, 258-273 lb-ft torque.

E550 M278 V8 4.7L Biturbo:

4.7L V8 Bi-turbo, approximately 402 hp, 443 lb-ft torque.

E250 Cdi Om651 Diesel 2.1L:

2.1L Inline-4 Turbo Diesel, approximately 201 hp, 369 lb-ft torque.

Engine Management System:

Bosch MED 17.x, Siemens SIM 271KE based ECUs.

Fuel Type:

Premium Unleaded Gasoline (91+ octane RON), Diesel Fuel (for CDI models).

Fuel Delivery:

Sequential Multi-Point Fuel Injection (MPI) for gasoline, Common Rail Direct Injection (CRDI) for diesel.

🔧 Transmission

Transmission Type:

7G-TRONIC PLUS (7-speed automatic) standard on most models.

Optional Transmission:

4MATIC All-Wheel Drive (AWD) system available on many models.

Transmission Modes:

Comfort (C), Sport (S), Manual (M) modes.

Transmission Fluid Spec:

MB Spec 236.14 (e.g., Pentosin ATF1 or equivalent).

Torque Converter Lockup:

Electronically controlled torque converter lockup for improved efficiency.

📐 Dimensions

Sedan Length:

Approx. 4,868 mm (191.7 in)

Sedan Width:

Approx. 1,854 mm (73.0 in)

Sedan Height:

Approx. 1,470 mm (57.9 in)

Wheelbase:

Approx. 2,874 mm (113.1 in)

Seating Capacity:

5

Sedan Trunk Volume:

Approx. 540 liters (19.1 cu ft)

Curb Weight Range:

Approx. 1,600 - 1,800 kg (3,527 - 3,968 lbs) depending on engine and configuration.

Wheel Bolt Pattern:

5x112

Wheel Offset:

ET 35-48 (typical)

🛡️ Safety Features

NHTSA Rating 2011:

5-Star Overall Safety Rating (for sedan models where tested).

IIHS Top Safety Pick 2011:

Yes (for models meeting criteria).

ABS:

Standard Anti-lock Braking System (ABS).

Esp:

Standard Electronic Stability Program (ESP) with Traction Control.

Driver Assistance Optional:

DISTRONIC PLUS (adaptive cruise control), Lane Keeping Assist, Blind Spot Assist, PRE-SAFE® braking.

Airbags:

Front, front-side, rear-side airbags, window airbags, driver knee airbag (standard or optional depending on market/trim).

Seatbelts:

3-point inertia-reel seat belts with belt tensioners and force limiters.

Child Seat Anchors:

ISOFIX (LATCH) compatible mounting points.

💡 Technology Features

Comand System:

COMAND APS (Cockpit Management and Navigation) with high-resolution display, DVD changer, Bluetooth connectivity, and optional Harman Kardon surround sound system.

Instrument Cluster:

High-resolution TFT color display for driver information, navigation prompts, and vehicle settings.

Adaptive Cruise Control:

DISTRONIC PLUS adaptive cruise control with radar-based object detection and automatic braking/acceleration.

Parking Assistance:

PARKTRONIC parking assistance system with front and rear sensors and visual/audible alerts.

Lane Assistance:

Optional Lane Keeping Assist (LKA) and Blind Spot Assist systems using cameras and radar sensors.

Bluetooth:

Standard Bluetooth interface for hands-free calling and audio streaming.

Pre Safe:

PRE-SAFE® system that prepares occupants for an impending collision by tightening seat belts, adjusting seats, and closing windows.

🔧 Maintenance

Oil Change Interval:

Typically every 10,000 miles or 12 months, whichever comes first (refer to specific model/engine for exact interval and oil type, often indicated by 'Service A' or 'Service B').

Brake Fluid Interval:

Every 2 years (DOT 4 recommended).

Transmission Fluid Interval:

Typically sealed for life, but recommended change interval for severe use or at higher mileage (e.g., 60,000-100,000 miles) depending on specific transmission and fluid type.

Spark Plug Interval:

Varies by engine: e.g., M272/M273 ~ 100,000 miles; M276 ~ 60,000-100,000 miles; OM651 ~ 60,000-80,000 miles.

Engine Oil Spec:

MB Approval 229.5 or 229.51 (e.g., Mobil 1 ESP 0W-40, Castrol Edge 5W-40).

Coolant Spec:

MB Spec 325.0 (Antifreeze/Coolant)

Power Steering Fluid:

MB Spec 343.0 (for hydraulic systems, if equipped).

M272 Engine Timing Chain Sprockets:

Early M272 engines (prior to ~2007 but can sometimes affect early W212 derivatives) had issues with timing chain sprocket wear leading to timing deviations. The 2011 model year largely uses the improved M276 engine, mitigating this.

Om651 Diesel Injectors:

Some reports of injector issues, particularly in earlier OM651 variants, requiring specialized diagnostic and replacement procedures.

Suspension Components:

Wear on control arm bushings and ball joints can occur with mileage, impacting ride quality and alignment.

7G Tronic Mechatronics:

Occasional electronic module (mechatronic unit) issues can arise, affecting shifting performance.

📚 Vehicle History

Manufacturer:

Mercedes-Benz has a long-standing reputation for luxury, engineering excellence, and safety dating back to the late 19th century.

W212 Generation:

The W212 generation of the E-Class replaced the W211 and introduced a significant design shift with sharper lines and a return to a more squared-off aesthetic compared to its predecessor.

Facelift:

The W212 underwent a significant facelift in 2013 (for the 2014 model year), which notably updated the front-end styling, replacing the quad headlamps with integrated LED daytime running lights and a redesigned bumper.

Production Years:

W212: 2009-2016.

Manufacturing Locations:

Primary manufacturing plants in Germany (e.g., Sindelfingen, Bremen), South Africa, Egypt, and other locations globally.

🏆 Awards & Recognition

IIHS Award:

Frequently awarded IIHS Top Safety Pick for its comprehensive safety features and crashworthiness.

Consumer Reports Ratings:

Generally received positive ratings from automotive reviewers and consumer organizations for comfort, build quality, and technology, though specific reliability scores varied by model year and engine.

Oem Certification:

This manual provides OEM-level certification data, diagnostic procedures, and repair specifications.