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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.
20 ratings9 reviews
August 30, 2020
Super quick and friendly. I was in and out in 15 minutes.
August 8, 2020
Easy to make an appointment, check was done in about 25 minutes
1 ratings1 reviews
July 26, 2020
The service was nice, and speedy (less than 20 minutes). $10 extra for STAR certification (as listed in the Groupon). Extra $8.25 for certificate (also listed in the Groupon).
11 ratings7 reviews
July 21, 2020
In and out in less than 30 minutes. Celebrating my 20 year-old car's smog clearance.
4 ratings1 reviews
June 7, 2020
It was all pleasant, staff were very friendly and quick service!
17 ratings10 reviews
June 4, 2020
Great customer service. Only took 20 minutes.
3 ratings1 reviews
April 29, 2020
I went today, it was quick, had to fill out the form, but I was asked to pay $8.25 extra for the certificate, which is kind of rip off. Last year I went to some other smog station and didn’t pay extra penny for the certificate. I asked him if I buy the groupon voucher, do I need to pay extra for the certificate, he said ‘no’. But when I went there, I have to pay extra $8.25for the certificate.
1 ratings1 reviews
March 15, 2020
Groupon coupon + Extra 8.5$ will be charged so don’t go with assumption that it’s only Groupon coupon so it charged me 28+8.5 where other places it’s 40$ no much difference
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What You'll Get

  • 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.

The Fine Print

Promotional value expires 120 days after purchase. Amount paid never expires. May be repurchased every 30 days. Limit 1 per person, may buy 3 additional as gifts. 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