2010 Mercedes-Benz C300 Service and Repair Manual

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Factory-Grade Data

2010 Mercedes-Benz C300 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

  • Elegance Sedan 4-Door
  • 4Matic Sport Sedan 4-Door
  • Base Sedan 4-Door
  • 4Matic Sedan 4-Door
  • Sport Sedan 4-Door
  • Classic Sedan 4-Door
  • Luxury Sedan 4-Door
  • 4Matic Luxury Sedan 4-Door

Engines covered

  • 3.0L 2996CC 183Cu. In. V6 GAS DOHC Naturally Aspirated
  • 3.0L 2996CC V6 GAS DOHC Naturally Aspirated
  • 3.0L 2996CC V6 FLEX DOHC Naturally Aspirated
  • 3.5L 3498CC 213Cu. In. V6 GAS DOHC Naturally Aspirated

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

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Vehicle Safety Data

2010 Mercedes-Benz C300 Recalls & Complaints

NHTSA #19V01000009/01/2019Component: AIR BAGS:FRONTAL:PASSENGER SIDE:INFLATOR MODULE

Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2014 C250, C300 4Matic, C350, C63 AMG, E350 4Matic Coupe, E350 Cabrio, E350 Coupe, SLS AMG Cabrio, SLS AMG Coupe, 2014-2015 C250 Coupe, C350 4Matic

Consequence

An inflator explosion may result in sharp metal fragments striking the passenger or other occupants

Remedy

MBUSA will notify owners, and dealers will replace the passenger frontal air bag module, free of cha

TSB #11031654

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 warranty coverage on the fuel filter unit for Partial Zero Emi

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 #11031588

In our continuing efforts to assure the proper performance of Mercedes-Benz products and to enhance the satisfaction of our customers, Mercedes-Benz USA, LLC (MBUSA) is extending the warranty coverage on the fuel filter unit in certain Mode

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

TSB #11031367

Complaint Creaking noise, in irregular sequence when driving slowly in combination with slight steering movements and/or Creaking/crackling noises from the area of the wheel bearing on the front axle when cornering/ maneuvering. Sound file

TSB #11029959

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 compen

TSB #11029025

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 compen

TSB #11025648

Complaint Single throttle lift-off clunking noise from the side shaft when moving off (audible at the outboard end). The clunk is heard once when changing from forward to reverse (and vice versa). Note: Sound file in attachment Cause If the

Showing the 8 most recent of 112 technical service bulletins on file with NHTSA.

20190716Component: STEERINGCrash reported2 injured

TL* THE CONTACT OWNED A 2010 MERCEDES-BENZ C300. WHILE DRIVING APPROXIMATELY 20 MPH THROUGH AN INTERSECTION, THE POWER STEERING SUDDENLY FAILED AND THE STEERING WHEEL BECAME DIFFICULT TO TURN IN EITHE

20150227Component: VEHICLE SPEED CONTROLCrash reported2 injured

TL* THE CONTACT OWNS A 2010 MERCEDES BENZ C300. WHILE DRIVING APPROXIMATELY 20 MPH, THE VEHICLE ACCELERATED INDEPENDENTLY WITHOUT WARNING. THE VEHICLE FAILED TO SLOW DOWN AND CRASHED INTO A CURB. AS A

20141202Component: AIR BAGSCrash reported2 injured

TL* THE CONTACT OWNS A 2010 MERCEDES BENZ C300. THE CONTACT STATED THAT THE REAR SEAT BELTS WERE EXTREMELY TIGHT TO THE SEATS. THE CONTACT INDICATED THAT THE SEAT BELTS IN THE FRONT WERE LOOSE AND THE

20141202Component: SEAT BELTSCrash reported2 injured

TL* THE CONTACT OWNS A 2010 MERCEDES BENZ C300. THE CONTACT STATED THAT THE REAR SEAT BELTS WERE EXTREMELY TIGHT TO THE SEATS. THE CONTACT INDICATED THAT THE SEAT BELTS IN THE FRONT WERE LOOSE AND THE

20250603Component: SEAT BELTSCrash reported1 injured

1. Driver seat back broke in a rear collision. Documented in EMS report and Kentucky State Police official investigation photos. 2. Driver head rest failed, completedly came off during rear collision.

Showing the 5 most serious of 593 complaints filed with NHTSA.

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