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Audi 100 Quattro Oxygen Sensor
24 itemsShop best-selling oxygen sensors for Ford, Chevy, Honda, Nissan, Toyota, and more. Direct-fit O2 sensors with fast response, improved MPG, and reliable emissions performance.
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A-Premium®Part # APOS1855
1-Pc O2 Oxygen Sensor A-Premium APOS1855
4.5607 Reviews
$29.99
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3-year warranty
90 days free return
Fits 1986 - 1989 Ferrari 328 GTS, 1988 - 1988 Ferrari Mondial 3.2, 1988 - 1988 Saab 900, 1987 - 1989 Saab 9000, 1985 - 1985 Volvo 244, 1988 - 1988 Volvo 244, 1985 - 1985 Volvo 245, 1988 - 1988 Volvo 245, 1985 - 1988 Volvo 740, 1985 - 1985 Volvo 745, 1985 - 1986 Volvo 740, 1993 - 1995 Audi 90, 1993 - 1993 Audi 100, 1994 - 1994 Audi 100, 1993 - 1993 Audi 100 Quattro, 1994 - 1994 Audi 100 Quattro, 1993 - 1993 Audi 90 Quattro, 1994 - 1995 Audi 90 Quattro, 1995 - 1995 Audi A6, 1996 - 1997 Audi A6
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Vehicle: Audi 100 Quattro
Quantity1
Installation PositionCheck the fitment chart
Item LocatedUnited States
item #10026A8Q
Note
O2 Sensor - Bank 1 Sensor 1 (B1S1).
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A-Premium®Part # APOS0456
O2 Oxygen Sensor | 1-Pc Direct-Fit | Heated | A-Premium APOS0456
4.5607 Reviews
$22.99
Low stock: Only 3 left
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3-year warranty
90 days free return
Fits 1994 - 1994 Audi 100, 1994 - 1994 Audi 100 Quattro, 1995 - 1995 Audi A6, 1996 - 1997 Audi A6
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Vehicle: Audi 100 Quattro
Quantity1
Installation PositionCheck the fitment chart
Item LocatedUnited States
Part interchange
078906265C, 250-24405
item #100310Q2
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A-Premium®Part # APOS1963
O2 Oxygen Sensor | 2-Pc Direct-Fit | Heated | A-Premium APOS1963
4.5607 Reviews
$44.99
Low stock: Only 1 left
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3-year warranty
90 days free return
Fits 1994 - 1994 Audi 100, 1994 - 1994 Audi 100 Quattro, 1995 - 1995 Audi A6, 1996 - 1997 Audi A6
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Vehicle: Audi 100 Quattro
Quantity2
Installation PositionCheck the fitment chart
Item LocatedUnited States
Part interchange
078906265C, 250-24405
item #10049X1N
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BoschPart # 11027
Oxygen Sensor - Bosch 11027
46 Reviews
$36.99
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3-year warranty
90 days free return
Fits 1995-1996 AM General Hummer, 1986-1990 Acura Legend, 1986-1991 Acura Integra, 1981-1982 Alfa Romeo GTV-6, 1982-1985 Alfa Romeo Spider, 1988-1988 American Motors Eagle, 1978-1978 Audi 5000, 1979-1979 Audi Fox, 1979-1985 Audi 5000, 1980-1981 Audi 4000, 1981-1986 Audi Coupe, 1982-1983 Audi 4000, 1982-1983 Audi 4000, 1983-1986 Audi Quattro, 1984-1984 Audi 4000, 1984-1987 Audi 4000 Quattro, 1985-1985 Audi 5000, 1985-1986 Audi 4000, 1986-1986 Audi 5000, 1987-1987 Audi 5000
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Vehicle: Audi 100 Quattro
Quantity1
Item LocatedUnited States
Part interchange
11027, J3240083, 3238765, 91160612300, 94460613300, 0025421218
item #1002AYHA
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DensoPart # 234-3000
Oxygen Sensor - Denso 234-3000
4.29 Reviews
$53.99
Low stock: Only 4 left
Edit ZIP code
3-year warranty
90 days free return
Fits 1983-1986 Alfa Romeo GTV-6, 1986-1994 Alfa Romeo Spider, 1987-1989 Alfa Romeo Milano, 1991-1993 Alfa Romeo 164, 1992-1992 Asuna Sunrunner, 1993-1993 Asuna Sunrunner, 1986-1987 Audi 5000, 1986-1988 Audi 5000 Quattro, 1987-1987 Audi 5000, 1987-1987 Audi Coupe, 1988-1988 Audi 5000, 1988-1991 Audi 90, 1988-1992 Audi 80, 1988-1992 Audi 80 Quattro, 1988-1992 Audi 90 Quattro, 1989-1991 Audi 100 Quattro, 1989-1991 Audi 200, 1989-1991 Audi 200 Quattro, 1989-1992 Audi 100, 1990-1991 Audi Coupe Quattro
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Vehicle: Audi 100 Quattro
Quantity1
Item LocatedUnited States
Part interchange
234-3000, 213-1241, 213-1242, OS516, OS521, 13589, 13936, 13508,
...View moreitem #1002HP48
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DensoPart # 234-4201
Denso 234-4201 Oxygen Sensor
4.29 Reviews
$95.99
Edit ZIP code
3-year warranty
90 days free return
Fits 1994-1994 Audi 100, 1994-1994 Audi 100 Quattro, 1994-1998 Audi Cabriolet, 1996-1996 Audi A4 Quattro, 1996-1997 Audi A4, 1996-1999 Audi A6, 1996-1999 Audi A6 Quattro, 1997-1999 Audi A4, 1997-1999 Audi A4, 1997-1999 Audi A4 Quattro, 1997-1999 Audi A8, 1997-1999 Audi A8 Quattro, 1997-2000 Audi A4 Quattro, 1998-1998 Audi A4 Quattro, 1999-1999 Audi A4, 1995-1997 BMW 750iL, 1995-1997 BMW 850Ci, 1996-1996 BMW 318is, 1996-1996 BMW Z3, 1996-1997 BMW 318ti
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Vehicle: Audi 100 Quattro
Quantity1
Item LocatedUnited States
Part interchange
234-4201, 13373, 13817, 15026, 15138, 15109, 13458, 15088,
...View moreitem #1004Z0US
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DensoPart # 234-3048
Oxygen Sensor - Upstream - Denso 234-3048
4.29 Reviews
$76.99
Low stock: Only 2 left
Edit ZIP code
3-year warranty
90 days free return
Fits 1987-1987 Alfa Romeo Milano, 1988-1989 Alfa Romeo Milano, 1990-1994 Alfa Romeo Spider, 1991-1993 Alfa Romeo 164, 1985-1986 Audi 4000, 1986-1987 Audi 5000, 1986-1988 Audi 5000 Quattro, 1987-1987 Audi 4000, 1987-1987 Audi 5000, 1987-1987 Audi Coupe, 1988-1988 Audi 5000, 1988-1991 Audi 90, 1988-1992 Audi 80, 1988-1992 Audi 80 Quattro, 1988-1992 Audi 90 Quattro, 1989-1991 Audi 100, 1989-1991 Audi 100 Quattro, 1989-1991 Audi 200, 1989-1991 Audi 200 Quattro, 1990-1991 Audi Coupe Quattro
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Vehicle: Audi 100 Quattro
Quantity1
Installation PositionUpstream
Item LocatedUnited States
Part interchange
234-3048, 0060507690, 60808457, 605076900, 25040, 25034, 9392762, DAC6907,
...View moreitem #1003RYKS
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DensoPart # 234-3090
Denso 234-3090 Oxygen Sensor
4.29 Reviews
$72.99
Edit ZIP code
3-year warranty
90 days free return
Fits 1994-1994 Alfa Romeo 164, 1985-1986 Audi 4000, 1987-1987 Audi 4000, 1990-1991 Audi V8 Quattro, 1992-1994 Audi S4, 1993-1993 Audi 100 Quattro, 1993-1994 Audi 100, 1993-1995 Audi 90, 1993-1995 Audi 90 Quattro, 1994-1994 Audi 100 Quattro, 1994-1998 Audi Cabriolet, 1995-1997 Audi A6, 1995-1997 Audi A6 Quattro, 1995-1997 Audi S6, 1996-1996 Audi A4, 1996-1996 Audi A4 Quattro, 1997-1997 Audi A4, 1997-1997 Audi A4 Quattro, 1998-1998 Audi A6, 1998-1998 Audi A6 Quattro
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Vehicle: Audi 100 Quattro
Quantity1
Item LocatedUnited States
Part interchange
234-3090, 13224, 13562, 13329, 13019, 15343, 13160, 13350,
...View moreitem #1003RWWP
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BoschPart # 15735
Bosch 15735 Oxygen Sensor
46 Reviews
$64.99
Edit ZIP code
3-year warranty
90 days free return
Fits 1983-1986 Alfa Romeo GTV-6, 1986-1994 Alfa Romeo Spider, 1987-1987 Alfa Romeo Milano, 1988-1989 Alfa Romeo Milano, 1991-1992 Alfa Romeo 164, 1985-1986 Audi 4000, 1986-1988 Audi 5000 Quattro, 1987-1987 Audi 4000, 1987-1987 Audi 5000, 1987-1987 Audi 5000, 1987-1987 Audi Coupe, 1988-1988 Audi 5000, 1988-1991 Audi 90, 1988-1992 Audi 80, 1988-1992 Audi 80 Quattro, 1988-1992 Audi 90 Quattro, 1989-1991 Audi 200, 1989-1991 Audi 200 Quattro, 1989-1992 Audi 100 Quattro, 1989-1993 Audi 100
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Vehicle: Audi 100 Quattro
QuantityOne Set
Item LocatedUnited States
Part interchange
15735, 94460613500
item #1002DVCT
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BoschPart # 13957
Bosch 13957 Oxygen Sensor
46 Reviews
$76.99
Edit ZIP code
3-year warranty
90 days free return
Fits 1988-1988 Alfa Romeo Milano, 1991-1994 Alfa Romeo Spider, 1985-1986 Audi 4000, 1986-1988 Audi 5000 Quattro, 1987-1987 Audi 4000, 1987-1987 Audi 5000, 1987-1987 Audi 5000, 1987-1987 Audi Coupe, 1988-1988 Audi 5000, 1988-1991 Audi 90, 1988-1992 Audi 80, 1988-1992 Audi 80 Quattro, 1988-1992 Audi 90 Quattro, 1989-1991 Audi 100, 1989-1991 Audi 100 Quattro, 1989-1991 Audi 200, 1989-1991 Audi 200 Quattro, 1990-1991 Audi Coupe Quattro, 1990-1994 Audi V8 Quattro, 1992-1994 Audi S4
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Vehicle: Audi 100 Quattro
Quantity1
Item LocatedUnited States
Part interchange
13957, 121515, 125881, 034906265A, 034906265F, 077906265, 7525603, 9392762,
...View moreitem #1002D96A
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Walker ProductsPart # 250-24405
Walker Products 250-24405 Oxygen Sensor
55 Reviews
$94.99
Edit ZIP code
3-year warranty
90 days free return
Fits 1994-1994 Audi 100, 1994-1994 Audi 100 Quattro, 1995-1995 Audi A6, 1996-1996 Audi A6, 1997-1997 Audi A6
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Vehicle: Audi 100 Quattro
Quantity1
Item LocatedUnited States
Part interchange
250-24405
item #1001PACP
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Walker ProductsPart # 350-33038
Walker Products 350-33038 Oxygen Sensor, Upstream
55 Reviews
$67.99
Edit ZIP code
3-year warranty
90 days free return
Fits 1987-1987 Alfa Romeo Milano, 1989-1989 Alfa Romeo Milano, 1990-1994 Alfa Romeo Spider, 1991-1992 Alfa Romeo 164, 1984-1985 Audi 5000, 1986-1988 Audi 5000 Quattro, 1987-1987 Audi 5000, 1987-1987 Audi 5000, 1987-1987 Audi Coupe, 1988-1988 Audi 5000, 1988-1991 Audi 90, 1988-1992 Audi 80, 1988-1992 Audi 80 Quattro, 1988-1992 Audi 90 Quattro, 1989-1991 Audi 100, 1989-1991 Audi 100 Quattro, 1989-1991 Audi 200, 1989-1991 Audi 200 Quattro, 1990-1991 Audi Coupe Quattro, 1990-1994 Audi V8 Quattro
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Audi 100 Quattro
Quantity1
Installation PositionUpstream
Item LocatedUnited States
Part interchange
350-33038
item #1001PE4R
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BoschPart # 15738
Bosch 15738 Oxygen Sensor
46 Reviews
$75.99
Edit ZIP code
3-year warranty
90 days free return
Fits 1994-1994 Audi 100, 1994-1994 Audi 100 Quattro, 1994-1998 Audi Cabriolet, 1995-1995 Audi A6, 1996-1996 Audi A4 Quattro, 1996-1997 Audi A4, 1996-1997 Audi A6, 1996-1997 Audi A6 Quattro, 1997-1998 Audi A4, 1997-1999 Audi A4, 1997-1999 Audi A4 Quattro, 1997-1999 Audi A8, 1997-1999 Audi A8 Quattro, 1997-2000 Audi A4 Quattro, 1998-1998 Audi A4 Quattro, 1998-1998 Audi A6 Quattro, 1998-1999 Audi A6, 1999-1999 Audi A4, 1999-1999 Audi A6 Quattro, 1995-1997 BMW 750iL
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Vehicle: Audi 100 Quattro
QuantityOne Set
Item LocatedUnited States
Part interchange
15738
item #1002DU4S
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BoschPart # 13508
Oxygen Sensor - Upstream - Bosch 13508
46 Reviews
$132.99
Low stock: Only 4 left
Edit ZIP code
3-year warranty
90 days free return
Fits 1992-1992 Audi 100, 1992-1992 Audi 100 Quattro, 1993-1993 Audi 100 Quattro, 1993-1993 Audi 90 Quattro, 1991-1991 Yugo Cabrio, 1991-1991 Yugo GV
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Audi 100 Quattro
Quantity1
Installation PositionUpstream
Item LocatedUnited States
Part interchange
13508, 048906265, 46641555
item #1002D1E0
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Walker ProductsPart # 350-33017
Walker Products 350-33017 Oxygen Sensor
55 Reviews
$68.99
Edit ZIP code
3-year warranty
90 days free return
Fits 1992-1992 Audi 100, 1992-1992 Audi 100 Quattro, 1993-1993 Audi 100 Quattro, 1993-1993 Audi 90 Quattro, 1985-1985 Peugeot 505
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Vehicle: Audi 100 Quattro
Quantity1
Item LocatedUnited States
Part interchange
350-33017
item #1001P9U0
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Walker ProductsPart # 250-23032
Walker Products 250-23032 Oxygen Sensor
55 Reviews
$74.99
Edit ZIP code
3-year warranty
90 days free return
Fits 1992-1992 Audi 100, 1992-1992 Audi 100 Quattro, 1993-1993 Audi 100 Quattro, 1993-1993 Audi 90 Quattro, 1985-1985 Peugeot 505
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Audi 100 Quattro
Quantity1
Item LocatedUnited States
Part interchange
250-23032
item #1001PCWP
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Walker ProductsPart # 350-34143
Walker Products 350-34143 Oxygen Sensor
55 Reviews
$80.99
Edit ZIP code
3-year warranty
90 days free return
Fits 1994-1994 Audi 100, 1994-1994 Audi 100 Quattro, 1995-1995 Audi A6, 1996-1996 Audi A6, 1997-1997 Audi A6
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Audi 100 Quattro
Quantity1
Item LocatedUnited States
Part interchange
350-34143
item #1001P851
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Walker ProductsPart # 250-23048
Walker Products 250-23048 Oxygen Sensor, Upstream
55 Reviews
$73.99
Edit ZIP code
3-year warranty
90 days free return
Fits 1987-1987 Alfa Romeo Milano, 1989-1989 Alfa Romeo Milano, 1990-1994 Alfa Romeo Spider, 1991-1992 Alfa Romeo 164, 1984-1985 Audi 5000, 1986-1988 Audi 5000 Quattro, 1987-1987 Audi 5000, 1987-1987 Audi 5000, 1987-1987 Audi Coupe, 1988-1988 Audi 5000, 1988-1991 Audi 90, 1988-1992 Audi 80, 1988-1992 Audi 80 Quattro, 1988-1992 Audi 90 Quattro, 1989-1991 Audi 100, 1989-1991 Audi 100 Quattro, 1989-1991 Audi 200, 1989-1991 Audi 200 Quattro, 1990-1991 Audi Coupe Quattro, 1990-1994 Audi V8 Quattro
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Audi 100 Quattro
Quantity1
Installation PositionUpstream
Item LocatedUnited States
Part interchange
250-23048
item #1001PCW0
Show less
Walker ProductsPart # 350-33059
Walker Products 350-33059 Oxygen Sensor
55 Reviews
$63.99
Low stock: Only 5 left
Edit ZIP code
3-year warranty
90 days free return
Fits 1993-1993 Audi 100, 1993-1993 Audi 100 Quattro, 1993-1993 Audi 90, 1993-1993 Audi 90 Quattro, 1994-1994 Audi 100, 1994-1994 Audi 100 Quattro, 1994-1995 Audi 90, 1994-1995 Audi 90 Quattro, 1994-1996 Audi Cabriolet, 1995-1995 Audi A6 Quattro, 1995-1996 Audi A6, 1996-1997 Audi A6 Quattro, 1997-1997 Audi A6, 1997-1997 Audi Cabriolet, 1998-1998 Audi Cabriolet, 1986-1989 Ferrari 328 GTS, 1988-1988 Ferrari Mondial 3.2, 1987-1989 Saab 9000, 1988-1988 Saab 900, 1988-1988 Saab 900
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Audi 100 Quattro
Quantity1
Item LocatedUnited States
Part interchange
350-33059
item #1001PCH2
Show less
Walker ProductsPart # 250-23028
Walker Products 250-23028 Oxygen Sensor
55 Reviews
$74.99
Edit ZIP code
3-year warranty
90 days free return
Fits 1993-1993 Audi 100, 1993-1993 Audi 100 Quattro, 1993-1993 Audi 90, 1993-1993 Audi 90 Quattro, 1994-1994 Audi 100, 1994-1994 Audi 100 Quattro, 1994-1994 Audi 90 Quattro, 1994-1995 Audi 90, 1994-1995 Audi Cabriolet, 1995-1995 Audi 90 Quattro, 1995-1995 Audi A6, 1995-1995 Audi A6 Quattro, 1996-1996 Audi A6, 1996-1996 Audi A6 Quattro, 1996-1996 Audi Cabriolet, 1997-1997 Audi A6, 1997-1997 Audi A6 Quattro, 1997-1998 Audi Cabriolet, 1986-1989 Ferrari 328 GTS, 1988-1988 Ferrari Mondial 3.2
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Audi 100 Quattro
Quantity1
Item LocatedUnited States
Part interchange
250-23028
item #1001P913
Show less
Your vehicle’s oxygen sensor (also known as O2 sensors) plays a critical role in engine performance, fuel efficiency, and emissions control. By continuously measuring the amount of unburned oxygen in the exhaust, the oxygen sensor sends real-time feedback to your engine control unit (ECU), ensuring the perfect air-fuel mixture.
When an oxygen sensor fails, your engine essentially runs “blind,” leading to poor fuel economy, rough idling, reduced performance, and a persistent check engine light. A timely front oxygen sensor replacement or replacement of a faulty upstream oxygen sensor or downstream oxygen sensor can restore optimal driving conditions and help you pass emissions tests with ease.
Why Choose A-Premium Oxygen Sensors?
Unlike universal parts that require cutting and splicing wires, A-Premium O2 sensors are engineered for direct plug-and-play installation.
- OEM-style connectors for seamless fit
- Pre-coated anti-seize threads for easy installation
- Laser-welded body construction for durability
- High-temperature sintered coating for long service life
- Premium insulation sheathing and impact-resistant design
- Slotted guard tube for sensor protection
- High heat dissipation structure for extreme environments
Advanced Performance & Precision
A-Premium oxygen sensor technology ensures fast, accurate, and stable performance:
Performance & Response
- ≤200ms fast response time
- High-efficiency oxygen sensing
- Zirconia sensing element
- Real-time signal feedback
Precision & Control
- Real-time exhaust tracking
- Accurate combustion control
- Stable signal output
Efficiency & Engine Benefits
- Improved fuel efficiency
- Enhanced engine performance
- Reduced harmful emissions
- Extended engine lifespan
Environmental Adaptability
- Operating range: -40°F to 266°F
- Air-tight sealing design
- Stable performance under harsh conditions
3 Symptoms of a Bad Oxygen Sensor
Because O2 sensors operate in extreme heat and carbon-rich environments, they naturally degrade over time.
- Check Engine Light (CEL): Common codes include P0135, P0171, and P0420. These often point to issues with an upstream oxygen sensor or oxygen sensor bank 1.
- Poor Fuel Economy: A faulty oxygen sensor may cause a rich fuel mixture, dramatically lowering MPG. 20-40% worse fuel economy overnight.
- Rough Idle & Stalling: Incorrect readings from your downstream oxygen sensor or upstream sensor can disrupt engine stability.
- Rotten egg smell: Catalytic converter overheating from bad fuel mixture
Understanding O2 Sensor Positions: Upstream vs Downstream
Modern vehicles may have multiple oxygen sensor units, making it essential to identify the correct one:
- Oxygen Sensor Bank 1vs Bank 2
- oxygen sensor bank 1 refers to the side of the engine with Cylinder #1
- Bank 2 is the opposite side
- Upstream Oxygen Sensor(Sensor 1)
- Located before the catalytic converter
- Controls air-fuel ratio
- Most common need for front oxygen sensor replacement
- Downstream Oxygen Sensor(Sensor 2)
- Located after the catalytic converter
- Monitors emissions system efficiency
Tip: Always match your diagnostic code to the correct upstream oxygen sensor or downstream oxygen sensor before purchasing.
Complete Your Emissions Repair
Replacing your oxygen sensor is often part of a larger emissions system fix. Consider inspecting these related components:
- Catalytic Converter: Persistent issues after replacing a downstream oxygen sensor may indicate converter failure
- MAF Sensor: Works with your oxygen sensor to calculate air intake
- Ignition Coils & Spark Plugs: Misfires can damage O2 sensors quickly
Shop by Popular Makes
To help you quickly find the right oxygen sensor, explore our most popular vehicle-specific options:
Browse our most searched and best-selling vehicle-specific oxygen sensor options to quickly locate the right fit for your car.
Frequently Asked Questions
Can I clean my oxygen sensor instead of replacing it?
Should I replace O2 sensors in pairs?
Do I need a special tool?
How long do oxygen sensors last?
What’s the difference between upstream and downstream sensors?
What happens if I ignore a bad oxygen sensor?
How do I know if it’s Bank 1 or Bank 2?
Will replacing an oxygen sensor improve MPG?
How do oxygen sensor voltages relate to fuel mixture?
How much does it cost to replace an oxygen sensor?
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