Header Background Image

Diagnostic Check in Liverpool

Excellent

Let’s go!
Don't know your vehicle registration?
Diagnostic Check

Instantly compare diagnostic deals from garages near you & book online

Like for like comparison

Like for like comparison

Instant Prices

Instant Prices

No Upfront Payment

No Upfront Payment

Book around the clock

Book around the clock

Transparent reviews & ratings

Transparent reviews & ratings

Liverpool Diagnostic Checks: Prices, Reviews & Local Insights

£68.27

Average price for a Diagnostic Checks in Liverpool

4.82

average rating based on customer feedback.

2,526

customer reviews for garages in Liverpool

How to book online

ENTER

ENTER

your vehicle reg & post code.

COMPARE

COMPARE

instant prices for your MOT, service or repairs

BOOK

BOOK

your preferred date & time in 1 step.

NO PAYMENT

NO PAYMENT

taken - only when the work is complete*

*some mobile technicians will contact you prior to your appointment to take payment in advance.

Top Garages for Diagnostic Check in Liverpool

Find the perfect garage for your vehicle with detailed information, reviews, and real-time availability.

Tailor your results by entering your reg and postcode

Then sort by location, availability, ratings, and price to find your ideal garage in Liverpool.

Don't know your vehicle registration?
Diagnostic Check
Mersey Garages Logo

Mersey Garages

Physical Garage

131 Great Howard Street, Liverpool, L3 7AT

About Us

We are a local, independant garage with mechanics of over 35 years experience. We offer a free pick up and drop off service on all service packages to save you time and effort on coming to the garage. We offer our pick up service from your home of office within a 10 mile radius. We are friendly, approachable but most importantly honest and if something doesn't need doing - we will tell you.

Diagnostic Check£99

Book Now

4.69 (49 reviews)

Reviews Summary

AI Generated

Customers consistently praise the garage’s convenient pick‑up/drop‑off service, friendly, attentive staff, clear communication and competitive pricing, with many noting fast MOTs and same‑day turnarounds. A minority report problems such as missed or unarranged collections, phones going to voicemail, occasional unexpected price changes and one allegation of unnecessary repairs. Most customers would recommend the garage, though it’s sensible to confirm collection arrangements and final quotes beforehand.

AA Mobile Mechanics (Liverpool) Logo

AA Mobile Mechanics (Liverpool)

Mobile Mechanic

Liverpool & Surrounding Areas, Liverpool, L24 1YD

About Us

The UK’s number 1 breakdown provider are now providing vehicle servicing and repairs. Fully trained AA mechanics, bringing vehicle servicing to your doorstep! Multiple mobile units now covering - Maghull, Liverpool, Warrington, Chester & surrounding areas. The vehicle we are servicing must be off the road on private property, and parked on a flat surface (to ensure all fluid levels we check are reading correctly) with full access around the car for us to be able to get to all 4 sides. If you keep your vehicle in a car park please ensure that you have the landowners permission for us to carry out your service. We cannot work on a public high

Diagnostic Check£60

Book Now

4.61 (14 reviews)

Reviews Summary

AI Generated

Customers largely praise the garage for punctual, friendly and knowledgeable mechanics, easy online booking and the convenience of at-home servicing, frequently highlighting clear communication and fair pricing. Minor issues mentioned include a quickly resolved computer glitch, while one reviewer reported a more serious communication breakdown (changed appointment and no replies) that prevented them using the service. Most scores cluster around 4.5–5 stars, with that single 1‑star review the main negative outlier.

What does a car diagnostic check do?

A diagnostic check is carried out on your vehicle by a mechanic, who will plug your vehicle into a specialised code reader. It can detect problems with your vehicle which may be difficult to spot manually.

The main components which are tested in a diagnostic check are the car’s:

  • electronic control units (ECUs) - these control various element of the car and its performance including engine running
  • emissions and exhaust sensors
  • braking system
  • electrical components such as central door locking
  • transmission if electronically controlled
  • ignition coils
  • throttle setting
  • fuel injectors
  • air flow and coolant

 

Why is a car diagnostic check important?

A diagnostic check is very important as it can detect a potential problem with your car, even before a breakdown. The computerised equipment scans your vehicle’s system to check for any faults, no matter how minor or major. A diagnostic test is a quick, easy and accurate way to discover any faults and will give you the chance to get them fixed before they turn into bigger and more expensive issues. When your car has a fault, this may show as a warning light on the dashboard. If the light goes out the system will store the fault code so the garage will find this when they do the diagnostic check.

What are the possible signs that your car needs a diagnostic check?

There are many different signs which will indicate that your vehicle needs a diagnostic check. Essentially, if you suspect that there is an issue with your car but don’t know what, you will probably want to book a diagnostic check to find out what the problem is. Here are some of the key signs:

  • Engine warning light - if the engine warning light appears on your dashboard, it’s important to take your vehicle to a garage as soon as possible as there is a wide variety of problems which the light may be flagging up.
  • Strange noises – any strange noises coming from your car need to be checked out before they turn into more serious problem. Some of these sounds may include; whining from the bonnet, abnormally loud exhaust, uneven engine noise, brake squealing or gear crunching.
  • Smoke - if you see smoke or steam coming from under the bonnet, your vehicle may be overheating.
  • Vibrating - if you notice any vibrating or pulling under your brake, the issue may be due to work brake discs or pads. However, it could also indicate a problem with your suspension or steering.

 

How long do car diagnostics take?

You can expect a diagnostic check on your car to take approximately 90 minutes. You may want to allow for more time though as the mechanic who will be carrying out the check might not be available to start right away.

How much does a car diagnostic check cost?

The price of a car diagnostic test can vary, depending on the garage that you visit. Each garage has a fixed price for diagnostic checks, ranging from £30 - £100.

Enter your vehicle registration number and post code into BookMyGarage (at the top of this page) and you can instantly compare diagnostic check pricing from all of the garages in your local area. As well as price, you can see the garages’ reviews, distance from your post code, extra services offered and availability. You don’t even have to register to get access to all of this information. When you have selected a suitable garage, you can choose a date, any optional extras (such as collection and delivery, loan car etc.) and book online.

Driving in Liverpool

From its 18th century status as the Empire’s second city to the urban deprivation and economic malaise of the post-war period, Liverpool has had its fair share of highs and lows. This irrepressible city has bounced back with style to become the thriving and charismatic place it is today, reflected by a stint as European Capital of Culture in 2008.