Oxygen Sensor Replacement at your home or office.

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Oxygen Sensor Replacement Estimate for Audi TT

Audi TT Oxygen Sensor Replacement costs $223 on average. Following is a breakdown of the labor and parts estimates.

YourMechanic Price
$209 to $283
Labor: $70 -$80
Parts: $139 -$203
Average Dealer price
$372 to 500
Average Shop price
$258 to 338
Get an instant quote for your car
Our mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing
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CarServiceYourMechanic PriceShop/Dealer Price
2004 Audi TTL4-1.8L TurboService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$220.69Shop/Dealer Price$283.77 - $415.85
2003 Audi TTL4-1.8L TurboService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$217.90Shop/Dealer Price$280.41 - $410.49
2003 Audi TTL4-1.8L TurboService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$228.03Shop/Dealer Price$292.98 - $430.59
2009 Audi TTL4-2.0L TurboService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$285.82Shop/Dealer Price$365.26 - $546.24
2000 Audi TTL4-1.8L TurboService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$220.69Shop/Dealer Price$283.79 - $415.88
2005 Audi TTL4-1.8L TurboService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$220.69Shop/Dealer Price$283.77 - $415.84
2008 Audi TTL4-2.0L TurboService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$253.73Shop/Dealer Price$325.22 - $482.19
2009 Audi TTL4-2.0L TurboService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$249.50Shop/Dealer Price$319.90 - $473.67
Show example Audi TT Oxygen Sensor Replacement prices

Oxygen Sensor Replacement Service & Cost

What is the Oxygen Sensor all about?

With each new model year, manufacturers are adding more oxygen sensors to better manage engine operation. Some high performance engines have an oxygen sensor for each cylinder as well as one for the rear of each catalytic convertor. The sensors are located either underneath the hood or underneath the car. The oxygen sensors are connected (screwed) to the exhaust pipe, either in front or back of the catalytic converter. The front (upstream) sensors measure the amount of oxygen in the exhaust system. The purpose of the front oxygen sensor(s) is to measure how rich or lean the gases are as the gases exit the combustion chamber. Depending upon whether the exhaust gas is lean (high in oxygen content) or rich (low in oxygen content), the amount of fuel entering the engine is adjusted by the engine management computer to try and maintain an ideal mixture that produces the lowest emissions output from the catalytic convertor.

Rear (downstream) sensors are located behind the catalytic converter. The purpose of the rear oxygen sensor(s) is to monitor the oxygen content of the exhaust gases leaving the catalytic convertor.

If one or more of the oxygen sensors are faulty, your car may not pass the emissions test. If you drive your car with a faulty oxygen sensor, you may get poor gas mileage and it can damage the catalytic converter.

Oxygen Sensor-MATROX-1

Keep in mind:

  • Many oxygen sensors are damaged by leaking oil or coolant. If that is the case, the cause of that leak needs to be identified and repaired, or else the replacement oxygen sensor will be damaged as well.
  • New vehicles require specific oxygen sensors, and not the universal sensors that were common prior to 1996.

How it's done:

  • Scan the computer in the car for codes.
  • Inspect for vacuum leaks and holes in the exhaust system.
  • Remove and replace the oxygen sensor if it is bad.
  • Check electrical connections.
  • Check for proper operation of oxygen sensors.
  • Clear diagnostic codes.
  • Test drive car.

Our recommendation:

Keep up with the tune-ups. If check engine light is on, don't drive the car too long without getting it inspected. If check engine light is flashing, pull over and get the car towed to avoid costly repairs. Ask the mechanic to inspect the vacuum hoses and leaks in the exhaust system. If the vacuum hose or exhaust system is leaking, it will display an oxygen sensor fault code. Replacing an oxygen sensor may not fix the problem.

What common symptoms indicate you may need to replace the Oxygen Sensor?

  • Check Engine light is on.
  • Car is getting poor gas mileage.
  • Emission test fails.

How important is this service?

Your vehicle has multiple oxygen sensors, and they all help the car run optimally. The front sensors measure how much oxygen is in the exhaust stream to measure how rich or lean the gases leaving the gas chamber are. The rear sensors measure the oxygen content of the gases as they leave the catalytic converter. The oxygen sensors then relay this information to your vehicle’s electronic control unit, so that it can adjust as necessary. Because cars depend on an ideal fuel-to-air ratio to function optimally, the oxygen sensors are leaned on for engine performance. When your oxygen sensors fail your car will run less smoothly, get worse mileage, and have worse emissions.

Fast and easy Oxygen Sensor Replacement service at your home or office.

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Meet some of our expert Audi mechanics

Real customer reviews from Audi owners like you.

471 reviews
Peter
38 years of experience
Arrived early and went to work. Was able to fix the problem and save me some money.
2005 AUDI TT - CRANKCASE HOSE
Want Peter's expert advice? Ask your question now. Its free!
283 reviews
Jason
12 years of experience
Car - Audi TT Sports; YourMechanic/ Jason Certeza I have taken the services of YourMechnic multiple times, and have always been very happy about it. in 2015, Yourmechanic, worked on changing my timing belt, starter replacement and serving. They also took care of my yearly servicing. In 2016, YourMechanic took care of powersteering sensor replacement and yearly servicing. Jason Certeza has worked multiple times with my car. This appointment was wrt to some squeaking noises from the power steering. He inspected the car, and quickly found the sensor to be defective. We went ahead to order the part, and Jason would fix it in the next appointment. Jason has deep mechanical knowledge of car(mine is European). He diagnoses, the problems very accurately, and explains very well. Jason also goes the extra mile, helping to buy the correct item. All in all, i would recommend him very highly, and would reach out to him for further repairs.
2000 AUDI TT - OIL CHANGE
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246 reviews
Godwin
19 years of experience
Amazing job and super friendly and fast! He went above and beyond his job and will for sure be hiring him again for all my vehicle needs! Highly recommended!
2008 AUDI Q7 - CAR BATTERY REPLACEMENT
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21 reviews
Eric
10 years of experience
Very professional..on time moo
2007 AUDI Q7 - BRAKE PADS REPLACEMENT (REAR)
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Get an instant quote for your car
Our mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing
Get a quote
CarServiceYourMechanic PriceShop/Dealer Price
2004 Audi TTL4-1.8L TurboService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$220.69Shop/Dealer Price$283.77 - $415.85
2003 Audi TTL4-1.8L TurboService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$217.90Shop/Dealer Price$280.41 - $410.49
2003 Audi TTL4-1.8L TurboService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$228.03Shop/Dealer Price$292.98 - $430.59
2009 Audi TTL4-2.0L TurboService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$285.82Shop/Dealer Price$365.26 - $546.24
2000 Audi TTL4-1.8L TurboService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$220.69Shop/Dealer Price$283.79 - $415.88
2005 Audi TTL4-1.8L TurboService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$220.69Shop/Dealer Price$283.77 - $415.84
2008 Audi TTL4-2.0L TurboService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$253.73Shop/Dealer Price$325.22 - $482.19
2009 Audi TTL4-2.0L TurboService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$249.50Shop/Dealer Price$319.90 - $473.67
Show example Audi TT Oxygen Sensor Replacement prices

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