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BMW 318i Emission Control Sensors
This page covers emission control sensors for the BMW 318i across model years 1984–2001, including oxygen sensors, throttle position sensors, mass air flow sensors, knock sensors, and air/fuel ratio sensors in direct-fit and OE replacement forms. Select your year above and we'll show only the emission control sensors that fit your BMW 318i. Fitment is checked against our vehicle data for every part listed.
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DENSO 234-4201 Universal Heated Oxygen Sensor 4-Wire 11.77" Lead
Part: 234-4201
Vehicle Specific
$84.98
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Weapon-R 310-111-101 Secret Weapon MAF Adapter Kit Air Flow Sensor Flange
Part: 310-111-101
Vehicle Specific
$127.67
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What's here for your BMW 318i
- Oxygen sensors — threaded direct-fit and universal styles for upstream and downstream positions
- Throttle position sensors — OE replacement units for the throttle body
- Ignition knock (detonation) sensors — block-mount designs for fuel management systems
- Mass air flow sensors — direct-fit MAF assemblies and elements
- Air/fuel ratio sensors — wideband-style replacements for late-model 318i applications
The widest selection here comes from DENSO, Bosch, Walker Products, and Delphi, spanning the full 1984–2001 model range. Other categories BMW 318i owners shop for: BMW 318i Exhaust Hardware, BMW 318i Shocks and Struts and BMW 318i Fuel Injectors and Injection Parts, or browse all BMW 318i parts and accessories.