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03-06 BMW 325CI/330CI & 03-05 325I/330I/Z4 & 04-06 X3 Front Sensor
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$140.00
Sale price$109.99
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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.
✓ Ships from FL Warehouse✓ In-House Quality Check✓ Direct-from-Warehouse
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.
* Rates from 0–36% APR. Payment options through Affirm are subject to an eligibility check and are provided by these lending partners: affirm.com/lenders. Options depend on your purchase amount, and a down payment may be required. CA residents: Loans by Affirm Loan Services, LLC are made or arranged pursuant to a California Finance Lenders Law license. For licenses and disclosures, see affirm.com/licenses. For example, a $800 purchase could be split into 12 monthly payments of $72.21 at 15% APR or 4 interest free payments of $200 every 2 weeks.
**Rates from 0%-36% APR. Payment options through Shop Pay Installments, are subject to an eligibility check and are provided by these lending partners: affirm.com/lenders. Options depend on your purchase amount, and a down payment may be required. State notices to consumers https://www.affirm.com/licenses.
03-06 BMW 325CI/330CI & 03-05 325I/330I/Z4 & 04-06 X3 Front Sensor
