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.

Plans and Prices


The Smart Mechanic

Understand your fault codes better, check components and repair more yourself.

Understand your fault codes

Detailed fault descriptions curated for you by expert mechanics!

Check components & schematics

Get direct access to original plans as they are used in the workshop!

Repair more on your own

Perform more repairs yourself together with Carly Smart Mechanic!

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Feature Finder

Find out what Carly can offer for your car

Let's start with your car brand
car health

Prevention saves money

Carly users save up to $2,000 a year using our car diagnostic tool!

Car maintenance can cost you dearly, including avoidable mechanic fees.

„The Carly diagnostic app for cars helped me understand what was wrong and eventually saved me thousands.“

Andres, BMW F10

Car diagnostics on the go

Perform a health check quickly via your smartphone with our diagnostic app.

car health

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.

car health

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.

car health

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.

BMW 3 Series

Your digital car toolbox

Learn about Carly’s main features

Most common questions

More answers to your questions

Tips & Tricks

What is a car diagnostic tool?

Tips & Tricks

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