2012 Mercedes-Benz E550 Service and Repair Manual

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Covers all 2012 E550 trims — 4Matic Sedan 4-Door, Base Convertible 2-Door, Base Coupe 2-Door ·
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2012 Mercedes-Benz E550 service and repair manual — a detailed, factory-style reference for maintenance, diagnostics, and repair. Use it to confirm correct procedures, specifications, and system coverage before you start work.

Designed for technicians and DIY owners, this manual helps you troubleshoot accurately, follow step-by-step repair procedures, and reference wiring diagrams and system sections quickly while you work.

What’s included

  • Step-by-step repair procedures and service information
  • Specifications and reference data (where provided)
  • Wiring diagrams and electrical sections
  • Powertrain, brakes, steering, suspension, HVAC and more

Trims covered

  • 4Matic Sedan 4-Door
  • Base Convertible 2-Door
  • Base Coupe 2-Door

Engines covered

  • 4.7L 4663CC 285Cu. In. V8 GAS DOHC Turbocharged

Index / Table of contents

  • Body
  • Brakes
  • Chassis Electrical
  • Driveline
  • Engine Cooling
  • Engine Electrical
  • Engine Mechanical
  • Engine Performance & Emission Controls
  • Fuel System
  • General Information & Identification
  • Heating, Ventilation, & Air Conditioning
  • Hybrid & Electric Vehicle Systems
  • Steering
  • Suspension
  • Transmission, Clutch, & Transfer Case
  • Wiring Diagrams
No active recalls The 2012 Mercedes-Benz E550 has no recalls on file with NHTSA.
TSB #11033185

Complaint After successful commissioning of the HERMES control unit (N112/9) with XENTRY Diagnosis DVD 03/2026, the message "SOS - service not activated" appears on the instrument cluster. In addition, the following two conditions are also

TSB #11032875

Complaint There are several types of complaint about noises or poor windshield wiper wiping performance: A: Wiper blades squeaking, chattering, shuddering B: The windshield is not wiped completely (streaking) C: During the downward movement

TSB #11032684

Complaint Potential corrosion on the rear axle carrier Cause Due to market-specific conditions such as moisture, ingress of dirt and/or environmental influences, corrosion can occur on the rear axle carrier Remedy In the event of a complain

TSB #11031736

In our continuing efforts to assure the proper performance of Mercedes-Benz products and to enhance the satisfaction of our customers, Mercedes-Benz USA ("MBUSA") is extending the coverage for the exhaust valve assembly on your vehicle as f

TSB #11031643

To enhance the satisfaction of our customers, avoid further costs of litigation and return focus to its core businesses, Mercedes-Benz USA, LLC (MBUSA) has entered into a settlement regarding claims relating to allegations that the Burl Wal

TSB #11031594

This NCU replaces the prior NCUs issued on May 18, June 25, 2020 and October 1, 2020 and contains important workshop instructions on how the HVAC Service Warranty repair must be carried out. To enhance the satisfaction of our customers, avo

TSB #11031590

This NCU replaces the prior NCU issued on March 10, 2023, and contains clarification on reimbursement timeline and removal of damage codes related to intake valves/guide. In our continuing efforts to assure the proper performance of Mercede

TSB #11031580

Complaint Headlamp, front fog lamp leaky or fogged. Cause Fogging of the headlamps is a natural phenomenon, which can occur under certain climatic conditions. It does not lead to any technical impairment of the headlamp. If a pressure compe

Showing the 8 most recent of 128 technical service bulletins on file with NHTSA.

20241205Component: SERVICE BRAKES, HYDRAULICCrash reported1 injured

The contact owned a 2012 Mercedes-Benz E550. The contact stated while her husband was driving 20-25 MPH and making a right turn, the brake pedal was depressed but traveled down to the floorboard, and

20250612Component: ELECTRICAL SYSTEM

The contact owns a 2012 Mercedes-Benz E550. The contact stated that while occupying the vehicle while the vehicle was parked, the ignition switch failed to detect the key fob. The vehicle was taken to

20250612Component: STEERING

The contact owns a 2012 Mercedes-Benz E550. The contact stated that while occupying the vehicle while the vehicle was parked, the ignition switch failed to detect the key fob. The vehicle was taken to

20240208Component: STEERING

The Electronic Steering Lock (ESL) will fail and cause the vehicle to become disabled. The failure of this part will leave the owner strained and unable to use any functions of the car. You can’t ev

20240208Component: ELECTRICAL SYSTEM

The Electronic Steering Lock (ESL) will fail and cause the vehicle to become disabled. The failure of this part will leave the owner strained and unable to use any functions of the car. You can’t ev

Showing the 5 most serious of 22 complaints filed with NHTSA.

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