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 MANUALSBMW1987L7 (E23) L6-3430CC 3.4L SOHC (M30)REPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTEMISSION CONTROL SYSTEMSSERVICE PRECAUTIONSTECHNICIAN SAFETY INFORMATION
1987 BMW L7 (E23) L6-3430cc 3.4L SOHC (M30)
Technician Safety Information
1987 BMW L7 (E23) L6-3430cc 3.4L SOHC (M30)SECTION Technician Safety Information
CATALYTIC CONVERTER OVERHEATING
Use extreme caution when working under a car that has a hot exhaust. Touching the catalytic converter or the exhaust pipe near the converter can cause severe burns, and could possibly ignite clothing, shop rags, or hair. Tests involving shorting the ignition to individual cylinders (a cylinder balance test for example) should be kept as brief as possible, with ample time given between steps to allow the catalytic converter to cool down before working on or around the exhaust system.
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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.