2003 Mercedes-Benz SLK230 Service and Repair Manual

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Factory-Grade Data

2003 Mercedes-Benz SLK230 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

  • Kompressor Convertible 2-Door

Engines covered

  • 2.3L 2295CC l4 GAS DOHC Supercharged

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

2003 Mercedes-Benz SLK230 Recalls & Complaints

No active recalls The 2003 Mercedes-Benz SLK230 has no recalls on file with NHTSA.
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 #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 #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 #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 #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

Showing the 8 most recent of 24 technical service bulletins on file with NHTSA.

20210509Component: ENGINE

CONSTANT CODE PO171

20201022Component: EXTERIOR LIGHTING

MY DRIVERS SIDE BRAKE LIGHT HAS BEEN REPAIRED OR REPLACED 11 TIMES. THE RECALL TO FIX IT FAILED AND MERCEDES WONT CORRECT THE TAIL LIGHT SYSTEM. NO BRAKE LIGHT IS EXTREMELY DANGEROUS IN TRAFFIC, IN MA

20200807Component: SERVICE BRAKES

WHEN DRIVING AT NORMAL SPEED THE FRONT PASSENGER SIDE WHEEL LOCKS UP. THIS HAS HAPPENED AT 40 MPH (IN TOWN) AND ALSO 65 MPH (ON HIGHWAY), ALMOST CAUSING ME TO HIT ANOTHER CAR AND RUN OFF THE ROAD. ITS

20200717Component: ELECTRICAL SYSTEM

TL* THE CONTACT OWNS A 2003 MERCEDES-BENZ SLK230. THE CONTACT STATED ON MULTIPLE OCCASIONS THE VEHICLE FAILED TO IMMEDIATELY START WHEN TURNING THE IGNITION KEY. THE CAUSE OF THE FAILURE WAS NOT DETER

20190916Component: EXTERIOR LIGHTING:BRAKE LIGHTS

TL* THE CONTACT OWNS A 2003 MERCEDES-BENZ SLK230. THE CONTACT STATED THAT THE BRAKE LIGHTS WERE DEFECTIVE. WHILE THE CONTACT WAS DRIVING TO WORK, A FELLOW MOTORIST FLAGGED HER DOWN AND ALERTED HER THA

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