2012 Mercedes-Benz SLK350 Service and Repair Manual

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Factory-Grade Data

2012 Mercedes-Benz SLK350 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

  • Base Convertible 2-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

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Vehicle Safety Data

2012 Mercedes-Benz SLK350 Recalls & Complaints

No active recalls The 2012 Mercedes-Benz SLK350 has no recalls on file with NHTSA.
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 #11020872

Complaint Commissioning not possible after replacement of TRANSMISSION 722.9 or of electrohydraulic controller unit (EHS) or of repair kit controller unit (VGS). Cause The wrong older A-code ("Generation EHS") is documented in VeDoc for 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 #11018626

Complaint After a software update of HERMES communication module N112/9 has been performed on a gray import vehicle, the message "SOS - Service not activated" is displayed in the instrument cluster. Cause The message "SOS - Service not acti

Showing the 8 most recent of 54 technical service bulletins on file with NHTSA.

20140926Component: UNKNOWN OR OTHER1 injured

MOVED FROM SAN FRANCISCO TO PALM SPRINGS, UPON BEING IN THE DESERT WITH INCREASED TEMPERATURES, MY CAR STARTED EMITTING STRONG FUMES THAT SMELL LIKE BURNING CRAYONS, THOUGHT IT WAS COMING FROM EXHAU

20251006Component: FUEL/PROPULSION SYSTEM

My mechanic says it's the fuel filter and it has been discontinued. I am a single woman and I am now afraid to drive my car. l am stressed about breaking down or being killed. Please help me. [XXX]

20221103Component: WHEELS:RIM

The contact owns a 2012 Mercedes-Benz SLK350. The contact stated that while driving at an undisclosed speed, a loud noise was heard coming from the rear of the vehicle. The contact stated that as she

20210923Component: SEATS:FRONT ASSEMBLY:HEAD RESTRAINT

The contact owns a 2012 Mercedes-Benz SLK350. The contact stated while driving approximately 45 MPH, the front passenger’s side headrest erroneously deployed. During the failure no crash had occurre

20200701Component: UNKNOWN OR OTHER

GLOVE BOX FACING HAS DETACHED FROM THE LOWER SIDE. IT HANGS FURTHER OUT THAN THE GLOVE BOX AND COULD BE A DANGER TO THE PASSENGER IN THE EVENT OF AN ACCIDENT OR EVEN A HARD STOP. IT STARTED COMING A

Showing the 5 most serious of 15 complaints filed with NHTSA.

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