Oxygen Sensor for 1988-1993 BMW 535i & More - Bosch 13052

Bosch 13052 oxygen sensor for the 1988-1993 BMW 535i 6-cylinder 3.5L and other vehicles reads oxygen in the exhaust and sends air-fuel-ratio feedback to the ECU. This Bosch O2 sensor is an upstream, heated narrow-band unit that helps the ECU keep combustion stable and emissions down.

• Narrow-band heated design with a ceramic element for precise air-fuel-ratio readings
• Reaches operating temperature in under 10 seconds for quick closed-loop control
• Metal housing with an integrated heater element and TSP coating against vibration, corrosion and contamination
• Built to withstand exhaust streams up to 1,880°F

Quick facts

• Part: Bosch 13052 oxygen sensor
• Fits: 1988-1993 BMW 535i 6-cylinder 3.5L and other vehicles
• Position: Upstream
• Material: Metal housing
• Condition: New

A check engine light, rough running or a drop in fuel economy can be signs of a worn oxygen sensor. These signs alone don't prove the sensor is the problem, since an exhaust leak near it can throw off the readings too.

Fits

Along with the 1988-1993 BMW 535i 6-cylinder 3.5L, the fit includes the 1991-1993 BMW M5 6-cylinder 3.6L and the 1988-1992 BMW 735i 6-cylinder 3.5L. This listing is one upstream sensor, and the 1988-1993 BMW 535i 6-cylinder 3.5L takes one. For any other BMW, search your year and engine in the "Vehicles it fits" section.

Specifications

In the box

One oxygen sensor with its wiring harness. A mounting bracket is not included.

Installation notes

• Conductive anti-seize is pre-applied to the threads.
• The connector is a direct fit.