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Smog Test for One or Two Vehicles at Mission Smog Test Only (Up to 59% Off)

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Extra 20% off, up to $50
Promo Code SAVE. Ends 5/16.
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Professional smog test control station offers a variety of checks and evaluations of smog emitted by an array of vehicles

Customer Reviews

100% Verified Reviews
All reviews are from people who have redeemed deals with this merchant. Review requests are sent by email to customers who purchased the deal.
5 ratings2 reviews
Rating of 5 out of 5 stars
April 28, 2022
Good 👍. Just a $10 fee besides your Groupon voucher.
5 ratings4 reviews
Rating of 5 out of 5 stars
April 25, 2022
Friendly service. $10 submission fee but took credit card. Would come again, probably after 9am.. Location is behind a carpet shop, go in thru black gate.
1 ratings1 reviews
Rating of 3 out of 5 stars
March 25, 2022
There are extra fees required to "submit" the smog state certification. It has to be paid CASH, which is sus. Also, the two locations in Riverside were both inoperable, I had to drive all the way to San Bernaghetto to smog my car. The employees were smoking weed at the gas station. Sus, but cool I guess since they were not near the pumps.
5 ratings1 reviews
Rating of 5 out of 5 stars
March 4, 2022
Quick service, highly recommended
40 ratings27 reviews2 photos
Rating of 2 out of 5 stars
March 4, 2022
I've used Mission Smog Test couple times, but this time is very inconvenient for I have to drive all the way to San Bernardino instead of the shop they have in Riverside. I know the price is decent but there is no consistency about their business hours. I hope this company will work on their customer service. They need a better location in San Bernardino.
1 ratings1 reviews
Rating of 4 out of 5 stars
March 1, 2022
I went to the San Bernardino location and was very pleased with the service overall. There was only one person working so I did have to wait for him to return from a break but he was very kind and helpful so it didn't bother me too much. I had the 2 car smog and it only took about 30 minutes for both of my cars to be completed. Using the Groupon was very easy. I highly recommend using mission smog
1 ratings1 reviews
Rating of 5 out of 5 stars
December 4, 2021
Great service!
1 ratings1 reviews
Rating of 5 out of 5 stars
November 3, 2021
Excellent services and friendly.
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About This Deal

Choice of:

  • Smog Test for One Vehicle
  • Smog Test for Two Vehicles

Catalytic Converters: Keeping Combustion Clean

Cleaner cars make for cleaner air. Learn how catalytic converters help with Groupon’s guide.

A car’s engine is a dirty place, and it produces even dirtier exhaust. Vapors exit the combustion chamber carrying a nasty trio of smog promoters: nitrogen oxides, hydrocarbons, and carbon monoxide. As these pollutants barrel through the exhaust manifold (the set of tubes that feeds exhaust from each cylinder into the exhaust pipe), there’s only one thing standing between them and the innocent air outside: the three-way catalytic converter.

Situated just before the muffler, the converter is home to honeycombed ceramic cores coated with some combination of platinum, rhodium, and palladium—three rare metals that interact with the main components of the pollutants. When exhaust enters, the metals trigger chemical reactions that heat the gasses and rearrange their molecules. Under their influence, nitrogen oxides splinter into pure oxygen and nitrogen, while hydrocarbons and carbon monoxide are oxidized into less-harmful carbon dioxide and simple water. Since their introduction during the 1975 model year, these unseen cleaners have made air more breathable and much tastier: the EPA estimates that cars built today are 98% cleaner than their counterparts from the 1960s.

Fine Print

Promotional value expires 120 days after purchase. Amount paid never expires. May be repurchased every 365 days. Merchant's standard cancellation policy applies (any fees not to exceed voucher price). Limit 3 per person. Limit 1 per visit. Valid only for option purchased. All goods or services must be used by the same person. Extra $8.25 fee for California state certification. Two-vehicle option must be redeemed same day. Offer not valid for RVs and buses. $1.75 DMV fee; additional $10 fee for models 1995 and older. Merchant is solely responsible to purchasers for the care and quality of the advertised goods and services.

About Mission Smog Test Only