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.
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HOMESERVICE MANUALSMERCEDES BENZ1993400EREPAIR AND DIAGNOSIS (SINGLE PAGE)GENERAL INFORMATIONRESTRAINTSAIR BAG DEACTIVATION PROCEDURESSAABSYSTEM OPERATION CHECK9000 SERIES
1993 Mercedes Benz 400E
9000 Series
1993 Mercedes Benz 400ESECTION 9000 Series
- Turn ignition on. If system is operating properly, 2 bulbs located behind SRS symbol in instrument panel should come on for about 5 seconds, then go out.
- If one or more diagnostic trouble codes are stored in memory, one bulb will flash for 5 minutes and then stay on until ignition is turned off or trouble codes are cleared. Bulb No. 2 will stay on as soon as ignition is turned on and will remain on until ignition is turned off or trouble codes are cleared. If either air bag has been activated, both bulbs will light as long as ignition is on.
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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.