Haglin Automotive Inc

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5747 Arapahoe Avenue
Boulder, CO 80303 USA
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8:00am to 5:30pm
8:00am to 5:30pm
8:00am to 5:30pm
8:00am to 5:30pm
8:00am to 5:30pm
8:00am to 5:30pm
Call now:
(720) 336-4726
10 Verified Reviews

Auto Repair Experience

  • Dana Haglin, Owner
  • Established 1981
  • 4 Auto Repair Mechanics on Staff
  • 27 Years of Car Repair Experience

Haglin Automotive has been serving the community of Boulder since 1981. We found managing owner Dana Haglin to be very talented and a great example for his employees. Dana has more than 31 years of automotive experience, receives continual training to stay up to date with the latest automotive technologies, and is ASE certified. He has a good team of technicians who also receive continual training and have over 27 years of combined experience. These technicians are supplied with some of the industries best tools and use them to perform professional repairs on your vehicle. This AAA shop backs their work up with a 24 Month 24,000 mile warranty. For your convenience they also offer a local shuttle service, rental car, free WiFi internet access, and early bird after/after hours drop-off. Haglin Automotive was recognized by Motor Age Magazine as one for the best auto shops in the nation 2012.


Toyota Oxygen Sensor Replacement Details

The oxygen sensor, or O2 sensor, is a device that constantly monitors the oxygen content in the exhaust gases that exit the engine.

Common Symptoms:

  • A failed oxygen sensor may cause the vehicle to fail an emissions test. The failed sensor will cause a trouble code to be set and the Check Engine Light to illuminate.
  • Oxygen sensors can fail if they are contaminated with oil, coolant, or silicone. If fluid contamination has caused an oxygen sensor failure, the source of the fluid must be resolved or the new sensor may be ruined.

What the Mechanic Should Do:

  • Intake and exhaust leaks can trigger an oxygen sensor trouble code, but the oxygen sensor does not require repair. Repairing the leak will resolve the problem.
  • On vehicles 1996 and newer, using an inexpensive "universal" oxygen sensor will cause problems with the emissions system and is highly discouraged.

Auto Repair Experience

  • Dana Haglin, Owner
  • Established 1981
  • 4 Auto Repair Mechanics on Staff
  • 27 Years of Car Repair Experience


  • AC/Heating
  • Check Engine Light
  • Diagnosis
  • Hybrid/Electric
  • Oil Change & Lube
  • Scheduled Maintenance
  • Service & Repair
  • Timing Belts
  • Transmission Repair
  • Windshield/Glass


  • AAA Member Discount
  • Child Friendly
  • Coffee
  • Early Bird Dropoff
  • Financing
  • Free Estimates
  • Free Multi-Point Safety Inspection
  • Gas/Diesel
  • Heated Waiting Room
  • Rental Car
  • Senior Discount
  • Service Guarantee
  • Shuttle
  • Towing
  • Warranty Accepted
  • Wireless Internet


  • ASA
  • ASE Blue Seal

Makes We Serve

  • Acura
  • Audi
  • BMW
  • Buick
  • Cadillac
  • Chevrolet
  • Chrysler
  • Dodge
  • Ford
  • GMC
  • Geo
  • Honda
  • Hummer
  • Hyundai
  • Infiniti
  • Isuzu
  • Jaguar
  • Jeep
  • Kia
  • Land Rover
  • Lexus
  • Lincoln
  • Mazda
  • Mercedes-Benz
  • Mercury
  • Mini
  • Mitsubishi
  • Nissan
  • Oldsmobile
  • Plymouth
  • Pontiac
  • Porsche
  • Saab
  • Saturn
  • Scion
  • Subaru
  • Suzuki
  • Toyota
  • Volkswagen
  • Volvo

Message from the Shop

We treat everyone like family and always take of you and your car. Dana and Judi have been operating Haglin Automotive since 1981, right after they both graduated from CU and got married. We are a AAA repair facility and have ASE certified technicians. We are a top shop with repair pal and service all makes and models. Please give us a call 303-442-8547.


Overall Rating

10 Verified Reviews

Customer Reviews

by May 07, 2013

Haglin Auto is by far the best place for auto repair and service. Their customer service is outstanding, never had such friendly car people to deal with. Service is always fast and come at a very respectable price. I really admire their attentiveness and friendliness towards customers.

by - Verified Customer May 01, 2013

Haglin Automotive is reliable, friendly, helpful and comparable in price.

by - Verified Customer April 30, 2013

I'd stay as far away as you possibly can. They're predatory and it was the worst experience of my life. I've owned seventeen cars and went through fifty mechanics and this was the worst experience.

by - Verified Customer April 29, 2013

I believe they are very honest, trustworthy, and courteous. They treat their customers with extreme courtesy, and offer beverages while you wait. They do excellent work. They don't try to tell you that you need something that you don't need. They tell me I need other things at other places. I'm very impressed. They're trustworthy, honest, and I will be a loyal customer.

by - Verified Customer April 29, 2013

Haglin is very experienced and very thorough, straightforward, and honest.

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by April 26, 2013

Excellent Service, and top quality work.

by - Verified Customer April 23, 2013

I would highly recommend them.

by - Verified Customer April 22, 2013

They were just extremely helpful, have fair prices, and they took care of me. I didn't have to hassle with them. They're really good. I was really happy with the service.

by - Verified Customer April 04, 2013

Trustworthy dependable... Meets you where you are as far as how much you want to know and how much work you want to get done. Really helps you manage your car & it's needs in a responsible way, taking the stress out of it for you.

by - Verified Customer April 04, 2013

Everyone was extremely friendly, helpful, and seemed trustworthy. All employees were very up-front and did not attempt to pressure me into any additional repairs that I did not want to do. They even gave me a ride to work while my car was being worked on so I didn't have to take the bus! All in all, pretty awesome.

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