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 MANUALSBMW1999328I 4D SEDAN, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCESYSTEMENGINE CONTROLS - SYSTEM & COMPONENT TESTINGIDLE CONTROL SYSTEMIDLE SPEED CONTROL VALVE
1999 BMW 328i 4D Sedan, Standard
Idle Speed Control Valve
1999 BMW 328i 4D Sedan, StandardSECTION Idle Speed Control Valve
See IDLE SPEED CONTROL VALVE LOCATION table. Idle speed control valve is either a 2-pin or 3-pin type. See Fig 1 and Fig 2 . See appropriate RESISTANCE SPECIFICATIONS table under SPECIFICATIONS .
RENDER: 1.0x
NO RELATED
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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.