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.
1997 Mercedes Benz SL500FACTORY OEM SERVICE PROCEDURE
Engine Controls - Self-Diagnostics With Codes
- Introduction
- Model Identification
- Production Date Information
- Self-Diagnostic System
- How To Read Diagnostic Information
- Component/Circuit Identification
- ECM Connector Identification
- Diagnostic Trouble Code Identification
- Notes
- Symptom Diagnostics
- Fuel Injection System Tests
- Notes
- Fuel Injection System Test (Steps 1.0-1.2)
- Fuel Injection System Test (Steps 2.0-3.0)
- Fuel Injection System Test (Steps 4.0-6.1)
- Fuel Injection System Test (Steps 7.0 & 7.1)
- Fuel Injection System Test (Steps 8.0-8.2)
- Fuel Injection System Test (Steps 9.0-9.2)
- Fuel Injection System Test (Steps 10.0-13.0)
- Fuel Injection System Test (Steps 13.1-14.0)
- Fuel Injection System Test (Steps 15.0-16.1)
- Fuel Injection System Test (Steps 17.0-18.0)
- Fuel Injection System Test (Steps 18.1-19.1)
- Fuel Injection System Test (Steps 20.0-20.1)
- Fuel Injection System Test (Steps 21.0-21.1)
- Fuel Injection System Test (Steps 22.0-22.1)
- Fuel Injection System Test (Steps 23.0-23.1)
- Fuel Injection System Test (Steps 24.0-24.1)
- Fuel Injection System Test (Steps 25.0-25.10)
- Fuel Injection System Test (Steps 26.0-27.1)
- Fuel Injection System Test (Steps 28.0-30.0)
- Fuel Injection System Test (Steps 31.0-32.0)
- Fuel Injection System Test (Steps 33.0-34.0)
- Fuel Injection System Test (Steps 35.0-35.1)
- Fuel Injection System Test (Steps 36.0-36.1)
- Fuel Injection System Test (Steps 37.0-37.1)
- Fuel Injection System Test (Steps 38.0-41.0)
- Fuel Injection System Test (Steps 42.0-44.0)
- Fuel Injection System Test (Steps 45.0-47.0)
- Ignition System Tests
- Notes
- Ignition System Test (Steps 1.0-1.2)
- Ignition System Test (Steps 2.0-3.0)
- Ignition System Test (Steps 4.0-6.0)
- Ignition System Test (Steps 7.0-9.0)
- Ignition System Test (Steps 10.0-12.0)
- Ignition System Test (Steps 12.1-13.1)
- Ignition System Test (Steps 14.0-15.1)
- Ignition System Test (Steps 16.0-17.1)
- Ignition System Test (Steps 18.0-19.1)
- Ignition System Test (Steps 20.0-21.1)
- Ignition System Test (Steps 22.0-23.1)
- Ignition System Test (Steps 24.0-25.1)
- Ignition System Test (Steps 26.0-27.1)
- Ignition System Test (Steps 28.0-29.1)
- Ignition System Test (Step 30.0)
- Electronic Accelerator Tests
- Cruise Control Tests
- Fuel Injector Tests
- Fuel Pump Tests
- DTC Description
- Signal Pattern Identification
Factory Service Tools
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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.