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1198 West El Camino Real, Sunnyvale

$28 for Emissions Testing at Sunnyvale Star Smog Check ($89 Value)

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Auto technicians perform checks on vehicles to ensure they meet emissions and safety standards

Customer Reviews

100% Verified Reviews
All reviews are from people who have redeemed deals with this merchant.
1 ratings1 reviews
19 hours ago
Quick, thorough smog check.
1 ratings1 reviews
2 days ago
Great price and services
1 ratings1 reviews
4 days ago
Ibrahim & Mortoza went out of their way to work on my car. Such personalized service and really really amazing work! I truly appreciate this shop and the people here. I got my Star SMOG check done here, as well as had the wiper blades changed. Both done very well!
9 ratings4 reviews
September 21, 2021
As advertised. Got the certificate in 15 mins. No complaints
3 ratings1 reviews
September 17, 2021
Quick and precise!
2 ratings2 reviews
September 11, 2021
There were unexpected $20 surcharge for being a truck for the smog check but it was an overall good deal to begin with so I can’t complain. 👍🏽
Stuarttop reviewer
14 ratings7 reviews
September 8, 2021
Short wait. Friendly technician.
Sophiatop reviewer
9 ratings7 reviews
August 14, 2021
Friendly fast and efficient.
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About This Deal

  • Smog Check

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. Limit 12 per person. Limit 1 per visit. Must use promotional value in 1 visit. Valid only for option purchased. All goods or services must be used by the same person. $8.25 additional cost for vehicles that pass smog check and need to certificate. Not valid with any other promotion or discount. Additional $10 fee for pick-ups, vans, minivans, and SUV's. Additional $30 fee for vehicles between 1996-1999. Additional $30 fee for vehicles older than 1995. Not Valid for Box Vans or RV's. Additional $10 for star certification. Additional $40 for vehicles older than 1976-1995. Merchant is solely responsible to purchasers for the care and quality of the advertised goods and services.

About Sunnyvale Star Smog Check