03-06 BMW 325CI/330CI & 03-05 325I/330I/Z4 & 04-06 X3 Front Sensor
03-06 BMW 325CI/330CI & 03-05 325I/330I/Z4 & 04-06 X3 Front Sensor
K2 Industries
Part #
K2-10840-BMW-006-EC
UPC #
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Product Description
Product Description
Front Engine Sensor — BMW 325/330 & Z4 & X3
Direct replacement oxygen sensor for early-2000s BMW inline-six and Z4 models. OEM-equivalent construction engineered to restore proper air-fuel ratio monitoring and emissions performance. Critical for maintaining fuel economy and clean combustion after sensor degradation.
Key Features
- OEM-equivalent design - Matches factory sensor calibration and electrical output for plug-and-play function
- Restores fuel trim accuracy - Eliminates rich or lean condition faults that trigger check engine lights
- Direct replacement fitment - No adapter or modification required; connects to existing harness and boss
Specs
- Type: Heated oxygen sensor
- Condition: New
- Quantity: Single unit
Whats Included
- Oxygen sensor
Frequently Asked Questions
Do I need to clear the check engine code after installing this?
After installation, the fault should clear itself within a few drive cycles as the sensor reads normal values. If the code persists, a diagnostic scanner can clear it manually, but the sensor itself will resolve the underlying condition.
Can I install this myself without special tools?
The sensor unscrews with a standard wrench or oxygen sensor socket — no special BMW diagnostic equipment needed. Unplug the electrical connector, remove the old sensor, thread in the new one hand-tight, then snug it with your wrench. Reconnect the harness and you're done.
What if the sensor is stuck in the exhaust manifold?
Let the engine cool completely before removal. If it won't budge, spray penetrating oil around the threads and let it soak for 20–30 minutes. A sensor socket with a breaker bar gives you better leverage than a regular wrench on a seized unit.
