Bosch Oxygen Sensors for BMW 7 Series E23 (1978-1987)

Clear BMW chassis

Oxygen sensors constantly monitor engine emissions and relays this data to the DME. Using these readings the computer determines the proper air/fuel mixture as well as how efficiently the catalyst system is functioning. Symptoms of a failed oxygen sensor range from an EML to poor fuel economy and severe loss of power. A failed upstream sensor will typically cause the engine to run poorly and a failed downstream sensor will typically present as a catalyst efficiency code.

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OEM Bosch Oxygen Sensor - E23 E24 E28 E30

For Vehicles With a Production Date Up to 09/87

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T#:2991

Part#: 11781716156

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$ 153.18

This product was last offered at the strikethrough price on
04-09-2026

$ 145.40 USD

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$ 145.40 USD

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This direct fit Bosch oxygen sensor plugs directly into your factory connector. No cutting or splicing required. A new oxygen sensor can improve driveability and lengthen engine life. Ultimately, you achieve a smoother running engine that is more fuel efficient. Feedback from the oxygen sensor provides closed-loop control of the injected quantity of fuel for optimum air-fuel mixture, enabling virtually complete combustion to take place. Contaminants in gas and certain atmospheric conditions can drastically shorten the life of any oxygen sensor, therefore they should be checked with every periodic maintenance and changed if necessary It fits BMW E23 E24 E28 E30. Bosch # 13 049.

This item fits the following BMWs:
1984-1988 E30 BMW 325e 325es
1985-1988 E28 BMW 535i 535is
1985-1987 E24 BMW 635csi
1985-1986 E23 BMW 735i

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