Oxygen Sensor for 2009-2016 Audi A4 & More - Bosch 17178

Q: Does Bosch 17178 work as an Audi A4 oxygen sensor on the 2009-2016 model with the 4-cylinder 2.0L?

Yes. Bosch 17178 is listed for the 2009-2016 Audi A4 4-cylinder 2.0L, with one sensor per vehicle.

Q: Is this a VW Passat oxygen sensor for the 2012-2018 model with the V6 3.6L?

Yes. Bosch 17178 is listed for the 2012-2018 Volkswagen Passat V6 3.6L, with one sensor per vehicle.

Q: Is this Bosch O2 sensor a wideband or a switching type?

It is a wideband A/F sensor. It reports the air-fuel ratio continuously across the full lambda range instead of the limited feedback of a switching sensor.

Q: Does this oxygen sensor come with its wiring harness?

Yes. The sensor comes with its wiring harness, and conductive anti-seize is already applied to the threads.

Q: What thread and wrench size does this oxygen sensor use?

It has an M18 - 1.5 thread and a 22 mm hex. Overall length is 29.5 in, and the sensor has 6 terminals.

$163.99

Part number: 17178

UPC: 028851171786

Condition: New

Weight: 0.41 LBS

Item Package Quantity: 1

$163.99

Current Stock: 125

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Bosch Oxygen Sensor P/N:17178

$163.99

Description

Bosch 17178 oxygen sensor for the 2009-2016 Audi A4 4-cylinder 2.0L and other vehicles measures the air-fuel ratio across the full lambda range. As a Bosch premium oxygen sensor of the wideband A/F type, it gives the ECU continuous, more detailed readings than a switching sensor.

Planar pump-cell wideband design with optimized heater control
Reaches operating temperature in <7 seconds for quick closed-loop control
Built for exhaust gas temperatures up to 1,880°F
Metal housing, integrated heater element and TSP coating resist vibration, corrosion and contamination

Quick facts

Part: Bosch 17178 oxygen sensor
Fits: 2009-2016 Audi A4 4-cylinder 2.0L and other vehicles
Position: Upstream, upstream left, upstream right
Material: Metal housing
Condition: New

A failing sensor can show up as a check engine light, poorer fuel economy or a rough idle. Before replacing one, look over the wiring and connector with the engine off and cool; a damaged harness can look like a bad sensor. This listing is one sensor, and how many a car takes varies by vehicle and upstream position.

Fits

This oxygen sensor fits the 2012-2018 Volkswagen Passat V6 3.6L and works as an oxygen sensor for the 2008-2014 Porsche Cayenne V6 3.6L. Driving something else? Run your year, model and engine through the "Vehicles it fits" section.

Specifications

Fit and size

Position: Upstream, upstream left, upstream right
Quantity per vehicle: varies by vehicle
Thread size: M18 - 1.5 (threaded mounting)
Hex size: 22 mm
Overall length: 29.5 in
Length (sealing surface to end of connector): 28.3 in
Terminal quantity: 6

Build and materials

Sensor type: Wide band
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.

Installation notes

Direct-fit connectors are made for quick installation.
Conductive anti-seize is pre-applied to the threads.

Manufacturer's description

Product specs

Vehicles it fits

Interchange numbers

Buyer's Q&A

Frequently Asked Questions

Does Bosch 17178 work as an Audi A4 oxygen sensor on the 2009-2016 model with the 4-cylinder 2.0L?

Yes. Bosch 17178 is listed for the 2009-2016 Audi A4 4-cylinder 2.0L, with one sensor per vehicle.

Is this a VW Passat oxygen sensor for the 2012-2018 model with the V6 3.6L?

Yes. Bosch 17178 is listed for the 2012-2018 Volkswagen Passat V6 3.6L, with one sensor per vehicle.

Is this Bosch O2 sensor a wideband or a switching type?

It is a wideband A/F sensor. It reports the air-fuel ratio continuously across the full lambda range instead of the limited feedback of a switching sensor.

Does this oxygen sensor come with its wiring harness?

Yes. The sensor comes with its wiring harness, and conductive anti-seize is already applied to the threads.

What thread and wrench size does this oxygen sensor use?

It has an M18 - 1.5 thread and a 22 mm hex. Overall length is 29.5 in, and the sensor has 6 terminals.

Manufacturer resources

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