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Product Review
- 【1-Year Warranty & Easy Installation】 Includes a 1-year warranty. Designed for a plug-and-play Upstream (Pre-Catalytic) swap. Features the correct OE-style connector for 1990-1995 models. Please verify your original 234-4676 part number before purchase.
- 【Exact OE Replacement 234-4676】 Direct replacement for OE 234-4676, 11781733628, and 13231. Precision-calibrated to match factory specifications for BMW 1.8L L4 and 2.5L L6 engines, ensuring seamless integration with your Bosch Motronic system.
- 【Solve CEL & P-Codes】 Clears Check Engine Light (CEL) and resolves common upstream fault codes related to fuel trim and heater circuits. Replacing your 2344676 sensor restores engine timing and helps your classic BMW pass emissions/smog tests.
- 【Restore Fuel Economy & Smooth Idle】 Optimizes the air-fuel ratio to maximize fuel efficiency and reduce harmful emissions. Essential for high-mileage 325i (E36/E30) and 318i models to eliminate rough idling and engine hesitations.
- 【100% Tested for European Performance】 Each 13231 equivalent sensor is rigorously factory-tested to handle extreme exhaust heat and vibration. Built with premium stainless steel and ceramic elements for long-lasting durability in M50 and M42 engine platforms.
