11454 Reeder Road, Dallas, TX 75229 972-241-6326
11454 Reeder Road, Dallas, TX 75229 972-241-6326

The Trusted Choice for German Auto Smog Tests In Dallas

German Auto Smog Test

Call today for an appointment: 972-241-6326

Smog tests, also known as emissions tests, are mandatory in certain states in the United States, including Texas. These tests are conducted to ensure that vehicles meet the state’s environmental standards by emitting fewer pollutants into the air. Smog tests are important for public health and the environment, as the emissions from vehicles can have harmful effects on air quality and human health.

Where are smog tests required In Texas?

Smog tests are required for vehicles that are registered in certain counties in Texas, including:

  • Harris
  • Galveston
  • Brazoria
  • Fort Bend
  • Montgomery
  • Collin
  • Dallas
  • Denton
  • Ellis
  • Johnson
  • Kaufman
  • Parker
  • Rockwall
  • Tarrant
  • Travis

The smog test is required every two years, and failure to comply with the testing requirements can result in fines and even the suspension of the vehicle’s registration.

Smog Testing Process

The smog test process in Texas involves measuring the emissions from the vehicle’s tailpipe while it is running on a dynamometer, which simulates driving conditions.
The test measures the amount of:

  • carbon monoxide (CO
  • nitrogen oxides (NOx)
  • hydrocarbons (HC)
  • particulate matter (PM)

The emissions are compared to the state’s emission standards to determine if the vehicle passes or fails the test.

What Happens If Your Vehicle Fails The Smog Test?

If the vehicle fails the smog test, the owner will be given a list of recommended repairs that can help reduce the emissions from the vehicle. In some cases, the repairs may be minor, such as replacing a faulty oxygen sensor, while in other cases, the repairs may be more significant, such as replacing a catalytic converter. Once the repairs are made, the vehicle will need to be retested to ensure that it now meets the state’s emission standards.

Loudon Motorcars Can Help With Your Smog Testing Needs

If you’re looking for a reliable, knowledgeable auto shop to get your smog test done in Dallas, look no further than Louden Motorcars. Our friendly staff is always available to answer any questions you may have and to help you schedule an appointment at the best time for you. We are proud to be the top German auto shop in the Greater Dallas area and even extend our services beyond Dallas into:

Don’t hesitate if your car needs routine care or mandated tests – visit or call us today!


Louden Motorcar Services, Inc.
11454 Reeder Road, Dallas, TX 75229

Mon To Fri: 07:30 AM – 05:30 PM
Sat - Sun: Closed

Call today for an appointment: 972-241-6326

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