Vehicle Diagnostics in Kent

Vehicle Diagnostics 101: Everything You Need to Know

So, annual health checkups from your physicians keep you in great health. The same holds for your automobile. Routine diagnostic tests can identify issues with it before they require costly repairs or, worse, leave you in the middle of nowhere after a sudden breakdown. 

A lot of people believe that diagnostic tests are only required when the check engine light comes on. Well, there are numerous advantages to taking a preventative approach to vehicle maintenance.

What is a Vehicle Diagnostic Test?

Over the decades, the computerisation of vehicle parts has been the most beneficial innovation in automotive technology. You can quickly and precisely pinpoint problem areas in a vehicle’s engine or elsewhere using specialised software and car diagnostic tools. 

Car Diagnostic tests can reveal the issues within the car’s engine, exhaust system, brakes, transmission and other major components. Even it can detect performance problems with airflow and coolant, ignition coils, fuel injectors and more.

Steps Involved in Vehicle Diagnostics:

Well, some Vehicle diagnostics in Kent steps take place no matter what the complaint is. Have a look:

Scanning OBD2 Port:

Scan through your car’s OBD2 port and explain to your mechanic what symptoms you are experiencing. It reveals the details of previously stored error codes registered by various components and the time when the error occurred. 

Diagnostic technicians are also able to determine whether live measurements taken by the sensors are within normal range or not.

Visual Inspection:

The next step is to examine the outlook. Pop the hood and check different car components and fluids before putting your vehicle on the car diagnostic lift to thoroughly inspect the engine, drivetrain, suspension, exhaust and more.

Running Test:

Sometimes, the visual inspection will be enough to find the exact reasons for car breakdowns. At times, more testing will be required. The nature of the problem will determine the tests your mechanic performs, the results of the OBD2 scan, and what the technician can see.

Imagine that your coolant is reading low and that the light comes on. But it won’t go off even after you fix the problem. The onboard computer might report that the coolant was low. After inspecting the vehicle with the engine running and finding no coolant leaks, the mechanic may decide to test the coolant level sensor. Or they can conduct a carbon dioxide test. This will determine if exhaust gases are entering the coolant system, which would pinpoint the blown head gasket.

Quotation and Repair:

The final step of vehicle diagnosis is providing a report with a detailed analysis of car issues and their suggested repairs. If you decide to fix your car, always get an estimate first to avoid scary surprises when the bill comes.

You should never accept a car diagnostic quote from a repair shop before they start working on your vehicle. 

What are Car Diagnostic Tools, and Why Do You Need Them?

A car diagnostic tool is a collection of various tools paired together to accurately diagnose your vehicle’s breakdowns and the necessary information to fix them. Some of the best vehicle diagnostic tools for cars are listed below:

Scan Tool

The scan tool is directly plugged into the car to access the internal database. It is responsible for providing valuable info regarding your vehicle’s internal functionality.

These are smart enough to reprogramme the car’s process to fix underlying matters and resume smooth functioning quickly.

Code Reader

A code reader can look at every light and verify the warning on a car. Once it connects to a car, it gives diagnostic technicians a number, which is the manufacturer’s error code. More advanced code readers can scan the error code and provide information by accessing the car’s database.

It should be noted that not all automobiles may be compatible with both code readers and scan tools. For instance, older vehicles may require older scan tools and code readers, whereas newer vehicles need modern devices.

What is Your Car Diagnostic Cost?

Auto diagnostics and repair tests will cost you differently depending on where you get them done. Its model can also affect this cost, as some models may require more advanced testing equipment. It may also cost more to test a luxury, unique, or sports car because it takes more time. The typical price ranges from £50-£100.

It is prescribed to have a vehicle diagnostic test routinely to prevent serious concerns. It helps you distinguish the minor points and fix them before it turns into a significant issue. You can avoid your hard-earned hundreds or thousands of pounds to repair. 

How Often Should Your Car Undergo Diagnostic Testing?

A car diagnostic test does not require waiting for the check engine light to come on if you experience or hear something “off”. Technicians can use vehicle diagnostic testing to identify the concerns. 

However, a lot of mechanics say that you should take your car in for a diagnostic check at least once a year. This will find small disturbances that can’t be seen or heard and won’t cause the check engine light to come on.

When looking at a used car, diagnostic testing is quite a useful tool. Before you buy, private sellers and professional auto dealers should agree to a diagnostic test. If they don’t, you should walk away from the deal.


If you have read through this blog post, you will surely understand the value and significance of vehicle diagnostic tests. Such tests are significant and should be done regularly for your car’s timely maintenance. A vehicle diagnostic test can save precious time and money for drivers and technicians. 

If you have automotive diagnostic tools, you can easily perform the tasks yourself. So, get it done today from a reputed auto diagnostic and repair service company and save your car from getting damaged in the long run.