Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Audio 10 Models (CLK, E & SLK Class)
After reconnecting radio, turn ignition on. CODE will be displayed. Enter code number using right side control knob. After selecting correct code, press right side control knob to confirm. Radio will turn on if code entered is correct.
If wrong code is entered, CODE will be displayed on radio. If wrong code is entered 3 times, WAIT will be displayed and code entry is denied for 10 minutes. If wrong code is entered 9 times, WAIT will be displayed and code entry is denied for 60 minutes. Radio and ignition switch must remain on during the waiting period.
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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