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Best Auto Repair, Knoxville

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Smog Check: Testing and Repairs

 85 Verified Review(s)

Smog Checks in Knoxville

*Please bring your DMV renewal notice indicating a Smog Check is required with you and your Smog Check certificate will be electronically sent to the DMV.

Why Choose B & M Automotive & Diesel Service in Knoxville for Your Smog Testing and Repair

  • Specialized smog check service station in Knoxville
  • Smog test and repair options to minimize cost and maximize convenience
  • Smog failure diagnosis with onsite repair and smog retesting
  • State-of-the-art automotive smog repair systems and tools
  • We participate in the California State Free Smog Testing Program
  • Ask about smog repair discounts and coupons

Knoxville's Trusted Source for Smog Testing and Repair

Ask any car or truck owner in Knoxville who they recommend for smog testing and repair, and they will tell you B & M Automotive & Diesel Service.

Since 1989, the pro mechanics at B & M Automotive & Diesel Service have provided quick smog testing and cost-effective smog repairs when needed. Start a maintenance service plan with us that can help prevent high-cost repairs to your emission system. We are professional, honest, and friendly. For five star, cost conscious smog testing and repair services call B & M Automotive & Diesel Service at 865-922-7111 to schedule an appointment today or stop by our location at 7301 Maynardville Pike in Knoxville, TN, 37938.

What Does B & M Automotive & Diesel Service Do During a Smog Check?

We inspect your car or truck's emissions-control equipment to measure the number of pollutants your vehicle is emitting.

First, B & M Automotive & Diesel Service will analyze your car or truck's OBD computer system, emissions-control system, and check engine light codes for standard warnings that your emissions system is no longer functioning properly.

Next, we will inspect your car or truck's gas cap, ignition timing, exhaust gas recirculation system, fuel, and evaporative system.

Finally, we will perform a Tailpipe Emissions Inspection which measures the type and quantity of any pollutant emitted from your vehicle's tailpipe.

Did You Pass Your Smog Test?

Great! If your vehicle passes a smog check, B & M Automotive & Diesel Service will provide you a vehicle inspection report showing your vehicle's results and will electronically send the smog certificate to DMV.

Discover More About Exhaust Repair Services At B & M Automotive & Diesel Service in Knoxville

4X4 Services
Undercar Services: Maintenance
Auto Electronics Repair


what our customers say

Stopped in to get help with an 01 Dodge we are rehabbing, the guys are very nice and very helpful! Took care of my abs brake sensors that were melted in!
H
, 08/18/2022

Just wanted to give a shout out to Bob at B & M. Very professional and did great work on my suspension repair.
D
, 08/17/2022

I had an amazing experience here at B & M! Both my mom and I had been having problems with our Toyota Priuses, this is the closest shop that works with hybrids but unfortunately we live about an hour and 15 minutes away. Boy am I glad that we drove this whole way! We arrived there as they opened and told them about the cars problems and stayed to chat for a while. Marty, the main mechanic mentioned how they had been operating with just two employees and the manager because everyone else had quit. Because of that they were unsure how soon they could get to my car. I wasn't super happy about that but I understood that it was out of their control. Because I was trying to leave shortly for the start of school, I really didn't have much time to waste, but again, they couldn't do much about it. My mom and I had about a days worth of errands to run around Knoxville so we told Marty that we would be around for that day in case they miraculously finished with the car. About an hour or two before they closed we got a call about the car. Unfortunately, my car was totaled, but because they were so fast with their diagnosis I still have plenty of time to figure out what to do as far as school goes. I would highly recommend coming here for your auto repairs. They were very considerate to my need for quickness even through their rough times, they were all very personable and I really enjoyed standing there listening to them talk, and so if ever I come back after college, they have gained themselves a customer for life. Thank you so very much Marty, Bob, and Gary.
B
, 08/05/2022

I had them do some repairs on a somewhat Frankenstein VW trike I just acquired. They did a FANTASTIC job figuring out what I had and then getting it road ready. A special thanks to Diego. Dude, you are my go-to guy for anything I need on this trike. Awesome people and awesome service.
T
, 07/27/2022

These guys are great. Repair was quick and price was well below the estimate.
j
, 06/14/2022

Great
D
, 05/22/2022

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