speedometer calibration chantilly va

Speed Calibration for Speeding Tickets

COST: $100.00
Hours: MON- FRIDAY 8am TO 5:30pm

Did you get a speeding ticket even though your speedometer claimed you were obeying the speed limit? You may be in need of speedometer calibration.

An incorrectly calibrated speedometer can not only get you a hefty fine but also put you in real danger. You must know your speed precisely in adverse conditions, like during icy northern Virginia winters. If you can’t trust your speedo, you’re putting yourself and other road users at risk.

At Advanced Automotive, we perform fast, reliable, and affordable speedometer calibration in Chantilly and Warrenton, VA. Stay safe on the road with an accurately calibrated speedo. We also give you a notarized calibration certificate that can help you lower your speeding fine.


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Most Reliable Speedometer Calibration in Chantilly & Warrenton, VA

Don’t second-guess your speed when driving in northern Virginia! Advanced Automotive offers fast, friendly, and above all trustworthy speedometer calibration services in Chantilly and Warrenton. We ensure your speedo means what it says.

  • Mechanical and electronic speedometer calibration
  • No appointment necessary — first come, first served!
  • Fast service, average wait time is 20-40 minutes
  • Affordable $100 flat rate
  • Two notarized calibration report copies

Speed Calibration Service Notes:

  • This is first-come, first served. Appointments are not available for this service.
  • It takes 20-30 minutes once your vehicle is taken into the service area.
  • You will receive a notarized copy of the report
  • This service is available at both of our Warrenton and Chantilly locations

Per State Law, this service is first come first served – no appointments can be made. Because of this, even if you attempt to make an appointment for this service, please be mindful that you are not guaranteed to be seen at the appointment time, as other customers may be waiting for the same service.


We Calibrate All Types of Speedometers

No matter how new your car is or what kind of speedo it uses, the speedometer can get miscalibrated. The expert technicians at Advanced Automotive know the ins and out of all speedometer types. We accurately calibrate both mechanical and electronic speedos using the latest tools and technologies.

Mechanical Speedometer Calibration

Mechanical or eddy-current speedometers connect with a cable to a speed cup that houses a strong rotating magnet. The rotations create a magnetic field that turns the speed cup in the opposite direction, moving the needle on your speedo. Mechanical speedometers have remained unchanged for decades and are still used in modern cars.

Electronic Speedometer Calibration

Electronic speedometers feature a magnet attached to the driveshaft. As the driveshaft rotates, the magnet passes another one and triggers a sensor that sends a reading to the speedometer. Electronic speedos are very accurate, but because of their high price, they’re still relatively uncommon.


Walk-In Speedo Calibration in Less than an Hour

As per Virginia law, you can’t make appointments for speedometer calibration services. This means you won’t have to bother making an appointment with Advanced Automotive, either! 

You can call ahead to see how busy we are, but all you need to do is drop off your car at our car repair shop. One of our technicians will calibrate your speedo as soon as possible.

Speedometer calibration is one of the fastest car repair processes. Thanks to our technicians’ expert skills, we’ll get the job done in 20-40 minutes on average. While you wait, you can enjoy the comforts of our dedicated waiting area.

Got a Speeding Ticket? WE CAN HELP

Have you received a speeding ticket that you believe is incorrect? Come to Advanced Automotive and let us calibrate your speedometer. We can help you prove your speedo was malfunctioning.

You’ll leave our shop with two notarized copies of our calibration report. In Virginia, these official documents are admissible evidence in traffic court and the judge may lower your fine or reduce your charges.

Only properly prepared, signed, and notarized calibration reports can be accepted in court. Advanced Automotive always gives you meticulously prepared documents to help your case.


6 Most Common Reasons You Need Speedometer Calibration

Why does a car speedometer become inaccurate? Many problems and incidents can knock these sensitive devices out of whack. Some of the most common issues include:

  • Wear and Tear: Mechanical speedometers have many moving parts that wear out over time. The sensors of electronic speedos can malfunction or get caked in dirt, affecting their accuracy.
  • Damage or Accidents: Just a minor bump on a curb or another can be enough to jolt or damage speedo components. Get your speedometer calibrated after every accident.
  • New Rims or Tires: Larger or smaller wheel sizes rotate at a different speed than your vehicle’s stock tires, which leads to inaccurate speedo readings. You should recalibrate your speedometer after swapping tires.
  • Worn Tires: Heavy or irregular tire wear can affect your wheels’ rotation rate and confuse your speedometer.
  • Manufacturer Design: Some carmakers intentionally make their speedometers show a slightly faster speed than you’re actually traveling in the name of increased traffic safety.
  • Heavy Load: Transporting a heavy load can slow down the rate at which your wheels turn and result in inaccurate speedo readings. Fortunately, this issue should fix itself after you unload the car.


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Advanced Automotive — A+ Rated Speedo Calibration and Car Repair

  • Fast and reliable diagnosis and inspection
  • Diagnostics for all vehicle makes and models
  • 100% FREE courtesy inspection with every vehicle diagnostic
  • 12,000-mile warranty on all parts and services
  • A+ rated customer service

Your Local, Trusted Full-Service Auto Repair Shop

Advanced Automotive has served drivers in Chantilly, Warrenton, and the surrounding areas for more than 35 years. As a local, family-owned business, we understand very well the driving conditions in northern Virginia.

Thanks to our local knowledge, we know precisely how to keep your car in optimal condition both during our cold winters and hot and humid summers. Our customers have recognized our expertise with an A+ BBB rating and an Angie’s List Super Service Award.


All Advanced Automotive technicians are ASE-certified, but that’s not enough for us. We actively encourage them to continue their education to keep up with the latest tools, techniques, and technologies.

As a result, we can service all car makes and models, whether domestic or imported. Our list of serviced makes includes, but isn’t limited to:

  • Acura
  • Audi
  • BMW
  • Chevrolet
  • Chrysler
  • Ford
  • Honda
  • Lexus
  • Mazda
  • Mercedes
  • Toyota
  • Volkswagen
  • And More!

Free Courtesy Inspection with Every Calibration

We offer you a 100% free courtesy check with every calibration or other car repair service. Our veteran technicians check your car for any issues that may be lurking in its parts or systems. If we discover problems, we’ll tell you clearly what we’ve found and give you a free estimate for the repairs.

But we’re not trying to push you into a sale — we only want to inform you. We believe in honestly telling our customers the condition of their vehicles, so they can make the right choices for themselves.

Relax While We Calibrate Your Speedo

Our technicians work at record speed but any car repair service will take a bit of time. While we work, you can feel at home in our comfortable waiting area. We offer free coffee and tea, television, and Wi-Fi. At Advanced Automotive, we take care of both you and your car.


Boost your driving confidence and stay compliant with accurate speedometer readings. Visit Advanced Automotive today for convenient walk-in speedometer calibration service in Virginia. Our skilled technicians will ensure your speedometer is calibrated precisely, providing you with peace of mind and a smoother driving experience. Don’t compromise on safety and performance – visit us now!