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.
1992 BMW 535i AutomaticFACTORY OEM SERVICE PROCEDURE
Relay & Module Identification
- 30 - Starter Relay
- 31 - Horn Relay
- 32 - Unloader Relay (K3)
- 33 - Blower Relay
- 34 - Blank
- 35 - Blank
- 36 - Unloader Relay (K61)
- 37 - Water Pump Relay
- 38 - Unloader Relay (K9)
- 39 - Hazard Flasher Relay
- 40 - Check Control Module
- 41 - Crash Control Module
- 42 - Light Control Module
Factory Service Tools
Use the Manual With the Right Hardware
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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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