Working Hours
  • Mon 7:00AM - 5:00PM
    Tue 7:00AM - 5:00PM
  • Wed 7:00AM - 5:00PM
    Thu 7:00AM - 5:00PM
  • Fri 7:00AM - 5:00PM
    Sat Closed
  • Sun Closed
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Emissions and Smog Testing

At Dakota K Auto Repair & Tire Center, we help our Arlington Heights customers' cars run as cleanly and efficiently as they possibly can. We provide a range of emissions testing services to ensure that your car is running and driving its best, as well as complying with all local smog regulations. Should a problem arise with any of your vehicle's emission systems, we provide the parts and expertise to get you back on the road. Dakota K Auto Repair & Tire Center can replace mufflers/catalytic converters, refill diesel exhaust fluid, and make sure the full range of filters in your vehicle's exhaust system are working perfectly.

Regulators understand that older cars simply can't meet modern emissions standards without extensive modifications. For newer cars however, passing a smog test is a requirement of road legality. Call us at 847-398-4645 to learn more about the emissions requirements for your vehicle.

Emissions testing (also known as smog testing) is a vital part of the maintenance of your vehicle. E-tests provide your mechanic with important information about your car's engine and exhaust system. If important components, like your car's catalytic converter aren't working properly, the car isn't running as it was intended to by the manufacturer. Inefficiency costs you extra money in fuel and does unnecessary harm to the planet. Emissions testing can also affect the value of a vehicle you're trying to sell; while you can still sell a car without a valid e-test certification, you'll get more money for one that has passed the test.

There are several reasons that a car may fail its emissions test. There may be a problem with the vehicle's fuel system adding too much fuel to the air-fuel ratio required for proper combustion within the cylinders of the car's engine. This is known as "running rich" and results in the smell of gasoline from fuel passing through the engine and exhaust system without being fully burnt. Causes of this issue range from faulty fuel injectors to issues with the engine's control computer. There may also be problems with oxygen sensors or the vehicle's ignition system. At Dakota K Auto Repair & Tire Center, we use a complete set of diagnostic equipment to determine the problem and fix it quickly, explaining every step of the process to you, our valued patron. Call us at 847-398-4645 or send us an email to arrange a health check for your car's emissions system today!


What Our Customers Are Saying

Brought my car in for a check engine light. The problem was diagnosed and situation resolved. They gave me a loaner car while the service was being performed making my day much easier.


-Rich L.

I've been coming here for almost 10 years. I always feel great about the service my car gets from Dakota. The staff is nice & helpful in explaining the estimates & repairs.


-Alan B.

Very honest, And great service!!!!


-Ricardo S.

Excellent service, I had no brakes. Pedal to the floor on my 05 Tahoe. Turns out the lines were rusted/rotted. Replaced with better materials all lines, hoses and fittings. Brakes are rock solid now. And all for a reasonable (yet still painful lol) price. Sometimes having an older vehicle just means this stuff needs to be done. Very pleased.


-Vince S.

Life Savers!! They towed, repaired, had reasonable pricing for repairs, and gave me a loner so I could get to work. They made my commuted break down stress free. Thanks guys and gal!!


-Daniel Z.

Great and very reasonable pricing and very knowledgeable service writers would most definitely send friends here they did great work on my diesel truck for a fraction of the cost of Ford.


-Kyle R.

I stopped by for a minor repair and they got me in right away. I was impressed with their professionalism and service. I will definitely be back.


-Dan T.

They do a great job on repairs, maintenance, etc. We've used their services for years!


-David C.

I must give these guys credit for simply standing by their warranty on a timing chain replacement that ended up having an issue. They towed in my car, diagnosed, took responsibility for and fixed the issue, without question or hassle, under their warranty. It is valuable to know they are an ethical shop.


-Blake C.

Helpful, considerate, friendly and very reasonable rates! The perfect combination when you need help with your automobile.


-Patricia C.

Amazing service. I came to the shop 2 hours before closing on Saturday. Muffler on my Nissan got loose and apparently detached from the exhaust. They've inspected the car and showed me where the problem was, recommended optimal and inexpensive fix, spent a great deal of time calling local suppliers to locate the proper part and got the job done before closing. Staff was very nice and professional. Job was done fast and inexpensive. Great local shop. Highly recommended.


-Dmitriy F.

I had the most pleasant experience with Dakota's. They charged me a reasonable rate, were honest with me, and lent me a loaner car while mine was in the shop for a few days. I definitely recommend them and definitely would come back!


-Ashley R.
  • BBB (Better Business Bureau)
  • ASA (Automotive Service Association)
  • BG Products
  • WIX Filters
  • Valvoline
  • Car Care Aware
  • Call Us For Service: 847-398-4645