Bosch 17158 left oxygen sensor for the 2003-2006 Porsche Cayenne V8 4.5L measures the air-fuel ratio in the exhaust and reports it to the ECU. This Bosch O2 sensor is a wide-band unit that gives the ECU more detail than a switching sensor.
- Continuous, high-precision readings across the full lambda range
- Reaches operating temperature in under 7 seconds for quick closed-loop control
- Built to withstand exhaust up to 1,880°F, with an integrated heater element and a TSP coating that resists vibration, corrosion and contamination
- Ceramic construction and optimized heater control for steady performance through rapid load changes and heat cycles
Quick facts
- Part: Bosch 17158 oxygen sensor
- Fits: 2003-2006 Porsche Cayenne V8 4.5L
- Position: Upstream left
- Material: Metal housing
- Condition: New
A lit check engine light, poorer fuel economy or a rough idle can mean a worn oxygen sensor, but other faults cause them too. Before you replace this sensor, rule out damaged wiring or a connector, an exhaust leak near the sensor and other stored fault codes. If this sensor is the cause, this one replaces it.
Fits
It is a direct-fit replacement for the 2003-2006 Porsche Cayenne V8 4.5L.
Specifications
Fit and size
- Position: upstream left
- Quantity for this position: 1
- Thread size: M18 - 1.5
- Hex size: 22 mm
- Overall length: 59.3 in
- Length (sealing surface to end of connector): 58.1 in
- Terminal quantity: 6
Build and materials
- Sensor type: wide-band
- Mounting type: threaded
- Housing material: metal
- Wiring harness: included
- Condition: new
- Warranty: Bosch 1-year, unlimited-mileage warranty for non-commercial passenger cars and light trucks
In the box
One oxygen sensor with its wiring harness. This listing is one left upstream sensor; that position takes one, and the right side is a separate part.
Installation notes
- Direct-fit connectors for quick installation.
- Conductive anti-seize is pre-applied to the threads.
Frequently Asked Questions
Is the Bosch 17158 the right Porsche Cayenne oxygen sensor for 2003-2006 models with the V8 4.5L?
Yes. The Bosch 17158 left upstream oxygen sensor fits the 2003-2006 Porsche Cayenne V8 4.5L, and this listing covers that left upstream position.
Does this wide-band oxygen sensor come with a wiring harness and anti-seize?
Yes. The sensor comes with its wiring harness, and conductive anti-seize is already applied to the threads. The right side is a separate part.
What thread and hex size does the Bosch 17158 use?
This left oxygen sensor has an M18 - 1.5 thread and a 22 mm hex. It has 6 terminals and a threaded mount.
Is this Bosch premium oxygen sensor a wide-band or narrow-band type?
It is a wide-band sensor. It gives the ECU continuous air-fuel ratio readings across the full lambda range rather than the switching signal of a traditional sensor.
How quickly does the Bosch 17158 reach operating temperature?
The Bosch 17158 reaches operating temperature in under 7 seconds, so the ECU gets a usable signal quickly for closed-loop control.
Published by the manufacturer of this part. Links open in a new tab.
- Brand file 5 PDF
- Brand file 5 PDF
- Brand file 5 PDF
- Brochure PDF
- Installation instructions PDF
- Technical bulletin PDF
- Warranty PDF
- Warranty PDF
- Warranty PDF
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