Diagnose your own car!
Check your car's main systems for known and hidden errors, clear fault codes, and more with our car diagnostic tool.
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Prevention saves money
Carly users save up to $2,000 a year using our car diagnostic tool!
Prevention saves money
Carly users save up to $2,000 a year using our car diagnostic tool!
Over the course of 10 years your car can cost you approx. $15,000 in maintenance costs including avoidable fees from mechanics. Routinely check your car yourself with our car diagnostic tool and many of these save costs.
“The Carly diagnostic app for cars helped me understand what was wrong and eventually saved me thousands.“
Car diagnostics on the go
Perform a health check quickly via your smartphone with our diagnostic app.
Gain Control
Understand the warning lights and severity of the problems with our car diagnostic tool
Don’t worry about your car breaking down on a road trip. Use the Carly diagnostic app to get insights into your car's health before it catches you by surprise.
Prevent costly damages
Detect hidden problems early using a car diagnostic tool
No one likes unexpected repair bills, especially when you are out of warranty. Take the opportunity to prevent some of these unwanted expenses by checking your car regularly with our car diagnostic app to keep your maintenance costs low.
Avoid mechanic visits
Read and clear fault codes using a diagnostic app on your car
Finally you can do it all through your smartphone with a simple tap.
Carly can diagnose your car and much more — find out what could be possible for your car.
How it works
Understand car diagnostics
Diagnostic fault codes (DTCs, also called trouble or error codes) identify a particular problem area outside the normal range and show where a fault might be occurring (i.e. fuel mixture too rich) even if the warning light is not showing it.
The modern vehicle contains data from up to 80 complex electronic control units. Carly reads out, interprets, and visualizes that data for you in an easy and understandable way.
The modern vehicle contains data from up to 80 complex electronic control units. Carly reads out, interprets, and visualizes that data for you in an easy and understandable way.
Other Carly features
Learn what else there is
Car Coding
In modern vehicles, there are functions and settings that the manufacturer has not unlocked. Customize your car to fit your needs.
Find out more
Car Maintenance
Perform simple maintenance independent of the workshop, with one tap on the phone.
Find out more
Used Car Check
Car mileage manipulation is on the rise, because it is so easy to do. Don't get tricked, analyze the vehicle before buying.
Find out more
Most Common Questions
