2008 Mercedes-Benz R350 Service and Repair Manual

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Factory-Grade Data

2008 Mercedes-Benz R350 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 Wagon 4-Door
  • Base Wagon 4-Door

Engines covered

  • 3.5L 3498CC 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

Payment & Security

Payment methods

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  • Visa

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Vehicle Safety Data

2008 Mercedes-Benz R350 Recalls & Complaints

NHTSA #22V31500009/05/2022Component: SERVICE BRAKES, HYDRAULIC:POWER ASSIST:VACUUM

Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2006-2012 ML-Class, GL-Class, and R-Class vehicles. Please refer to MBUSA's recall report for specific vehicle model details. Moisture may accumul

Consequence

Reduced brake performance or brake failure can increase the risk of a crash.

Remedy

Owners are advised not to drive their vehicles until the remedy has been performed. Dealers will re

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 #11029062

Complaint Headlamps leaking or fogged Cause The fogging of the headlamp is a natural phenomenon which can occur under certain climatic conditions. In contrast to a leaky headlamp, physical fogging does not result in a technical impairment o

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 #11028989

Complaint Headlamps leaking or fogged Cause The fogging of the headlamp is a natural phenomenon which can occur under certain climatic conditions. In contrast to a leaky headlamp, physical fogging does not result in a technical impairment o

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

TSB #11019018

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

TSB #11017500

Complaint Headlamps leaking or fogged Cause The fogging of the headlamp is a natural phenomenon which can occur under certain climatic conditions. In contrast to a leaky headlamp, physical fogging does not result in a technical impairment o

TSB #11017496

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. Remedy NOTE: If a pr

Showing the 8 most recent of 57 technical service bulletins on file with NHTSA.

20250709Component: SERVICE BRAKES

The brake fluid lines are corroding much faster than in other models, and without actual corrosion under the car. It happened to my car, and I have been reading forums of MB owners of this same R mode

20220906Component: SERVICE BRAKES, HYDRAULIC

The contact owns a 2008 Mercedes-Benz R350. The contact received notification of NHTSA Campaign Number: 22V315000 (Service Brakes, Hydraulic) however, the part to do the recall repair was not yet avai

20220820Component: SERVICE BRAKES

Hi I received a letter from Mercedes for a stop drive recall (NHTSA #22V315, MBUSA ID: 2022050014 & 2022050015), so I bought my Mercedes R350 to the shop for repair on July 15, 2022. Mercedes Benz o

20220608Component: SERVICE BRAKES

Every time I braked, car not stop until very close to the car in front of me. Couples time I hit the car in front of me. Sometime I have to slam the brakes very hard, but the car still move forward.

20220523Component: SERVICE BRAKES

I DROVE TO WORK WITH NO PROBLEMS. HOWEVER; RETURNING I STARTED CAR AND COULD HEAR A SLIGHT SOUND. I IMMEDIATELY NOTICED THAT THE CAR RISING SIGN WAS ILLUMINATED AND I WAITED FOR CAR TO RISE. THE C

Showing the 5 most serious of 48 complaints filed with NHTSA.

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