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 MANUALSBMW1993740IL (E32/2) V8-3982CC 4.0L DOHC (M60)REPAIR AND DIAGNOSISRELAYS AND MODULESRELAYS AND MODULES - POWERTRAIN MANAGEMENTRELAYS AND MODULES - COMPUTERS AND CONTROL SYSTEMSENGINE CONTROL MODULETESTING AND INSPECTIONCOMPONENT TESTS AND GENERAL DIAGNOSTICSENGINE TEMPERATURE SENSOR (COOLANT)
1993 BMW 740iL (E32/2) V8-3982cc 4.0L DOHC (M60)
Engine Temperature Sensor (Coolant)
1993 BMW 740iL (E32/2) V8-3982cc 4.0L DOHC (M60)SECTION Engine Temperature Sensor (Coolant)
Check function:
[D] 200 - The indicated engine temperature should correspond to the coolant temperature. A value below - 30 °C indicates a break in the temperature sensor or in the wire to the DME control unit.
Resistance test:
Connect universal adapter to the engine wire harness. Measure resistance over the terminals 45 and 19.
RENDER: 1.0x
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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.