How Long Does An MOT Take?

For most drivers, the annual MOT is a familiar part of owning a car. But how long does an MOT take, and will your vehicle really be ready to collect within an hour?

The straightforward answer is that an MOT usually takes between 45 and 60 minutes. The more detailed answer is that it depends on the garage schedule, the condition of your vehicle and whether any repairs or retesting are needed.

At Slater’s Garage, most MOT tests take less than an hour. You can wait in our customer area while we carry out the test, or leave your vehicle with us and return later.

In this guide, we explain what happens during an MOT, why the inspection takes as long as it does and what can cause your car to remain at the garage for longer.

How Long Does an MOT Normally Take?

A standard car MOT should normally take around 45 to 60 minutes to complete.

During that time, an authorised MOT tester follows a set inspection process to check that important parts of your vehicle meet the required road-safety and environmental standards.

The tester must also record the result, including any defects or advisory items found during the inspection.

Although the MOT itself may take less than an hour, the complete appointment can be longer. Your car may need to:

• Be checked in when it arrives
• Wait for its allocated test slot
• Complete the MOT inspection
• Have the result recorded
• Be moved out of the test bay
• Have any defects or advisories been explained
• Wait for you to return and collect it

This is why a garage may ask you to leave your vehicle for part of the morning or afternoon, even though the actual MOT takes approximately one hour.

When booking, it is worth asking both how long the test will take and when your car is likely to be ready for collection.

What Happens During an MOT Test?

The purpose of an MOT is to check that specified parts of your vehicle meet the legal standards required for road use.

It is a structured inspection rather than a general mechanical check. Some parts are examined visually, while others require the tester to operate the vehicle or use specialist testing equipment.

Depending on your car, the MOT can cover:

• Brakes
• Steering
• Suspension
• Tyres and wheels
• Lights and electrical equipment
• Seats and seat belts
• Windscreen, mirrors and wipers
• Exhaust system and emissions
• Fuel system
• Doors and catches
• Registration plates
• Vehicle identification number
• Horn
• Body and structural condition
• Towbar, where fitted

The government provides a more detailed breakdown of the car parts checked during an MOT.

An MOT does not involve dismantling the vehicle. It also does not assess the internal condition of the engine, clutch or gearbox.

Our wider guide to MOTs in Nottingham explains more about what the test involves and how to prepare for it.

Why Does an MOT Take 45 to 60 Minutes?

An MOT takes time because the tester has to examine several important parts of your car in the correct order.

Some checks are straightforward. Others require specialist equipment or more detailed inspection.

For example, the tester may need to:

• Raise the vehicle to examine the parts underneath
• Test the operation and performance of the brakes
• Measure exhaust emissions
• Check the steering and suspension
• Inspect the tyres for condition and tread
• Test the lights and other electrical equipment
• Check the body and structure for relevant corrosion or damage
• Record defects accurately in the MOT system

The tester cannot rush these checks. Each relevant component must be assessed against the official MOT standards before a result can be issued.

What Determines How Long an MOT Appointment Takes?

While the inspection itself will normally take less than an hour, several factors can affect how long your car remains with us.

1. The workshop schedule

Your booking time may be the time we ask you to bring the vehicle to us, rather than the exact moment it enters the MOT bay.

Throughout the day, we may be coordinating MOT tests alongside servicing, repairs, retests, customer collections and parts deliveries.

A busy schedule does not usually make the actual MOT longer, but it can affect when the test begins.

2. The condition of your vehicle

A well-maintained car with no obvious defects will usually move through the process without complications.

If the tester finds several problems, more time may be needed after the inspection to record the result, explain the defects and discuss what should happen next.

3. Repairs

If your car fails, we may need to examine the affected area more closely and prepare a repair estimate.

We will then contact you, explain what we have found and ask for your approval before carrying out additional chargeable work.

4. Parts availability

A straightforward repair can sometimes be completed on the same day if the correct part is available.

If we need to order a vehicle-specific or less common component, your car may need to remain with us for longer.

5. Retesting

Once a failed item has been repaired, it may need to be tested again before the car can receive a pass.

The time required will depend on the defects and the parts of the vehicle that need re-examination.

6. A service booked at the same time

An MOT and a car service are separate jobs.

Booking them together can save you from making two trips to the garage, but we will need the vehicle for long enough to complete both.

Will an MOT Take Longer If My Car Fails?

Failing an MOT does not normally make the original inspection much longer.

The extra time comes afterwards if your vehicle requires repairs and another test.

If your car fails, we may need time to:

• Explain why it failed
• Confirm how serious each defect is
• Prepare an estimate
• Contact you for approval
• Obtain replacement parts
• Complete the repairs
• Carry out a retest

A small repair may only add a few minutes to your visit. A more complicated problem could mean leaving the car with us for longer.

The MOT result may include:

• Minor defects, which do not cause the vehicle to fail
• Advisory items, which should be monitored or repaired
• Major defects, which result in a failure
• Dangerous defects, which result in a failure and present an immediate risk

You can find an official explanation of these outcomes in the government’s guidance on MOT test results.

Can I Drive My Car After an MOT Failure?

Whether you can drive the car away depends on the result and whether its existing MOT certificate is still valid.

You may be able to take the vehicle away if:

• Its existing MOT is still valid
• No dangerous defects have been recorded
• The vehicle remains roadworthy

If the MOT has expired or a dangerous defect has been found, the vehicle will need to be repaired before it can be driven normally.

A valid MOT certificate does not make an unsafe vehicle legal to drive. You remain responsible for making sure your car is roadworthy.

According to the official rules for driving after an MOT failure, driving a vehicle that has failed due to a dangerous defect can lead to a fine of up to £2,500, three penalty points, and a driving ban.

If your car fails with us, we will explain the result in straightforward language. Where appropriate, our team can also carry out the necessary car repairs in Nottingham.

We will discuss the work and cost with you before beginning additional repairs.

How Long Does an MOT Retest Take?

An MOT retest may be shorter than the original inspection because the tester may only need to re-examine the items that caused the failure and anything affected by the repairs.

However, there is no standard retest duration.

How long it takes will depend on:

• The number of failed items
• Which parts of the vehicle were affected
• Whether the brakes or emissions need testing again
• Whether the repair has been completed correctly
• Whether the vehicle qualifies for a partial retest

If you leave your vehicle with the original test centre for repairs and it is retested within 10 working days, it will normally only need a partial retest, and there is no retest fee.

If you take the vehicle away for repairs and return it to the same centre within 10 working days, it may still qualify for a partial retest, but a fee can be charged.

Certain specified defects can qualify for a free partial retest if the vehicle returns to the same test centre by the end of the next working day.

The full conditions are explained in the official GOV. UK MOT retest rules.

Can We Complete MOT Repairs During the Same Visit?

In many cases, we can complete straightforward repairs during the same visit, provided we have enough workshop time and the correct parts are available.

Examples may include replacing:

• A failed bulb
• A worn wiper blade
• A damaged number plate
• Another simple defective component

If we find a fault, we will explain what needs to be done and provide an estimate before carrying out additional work.

More involved repairs may take longer, particularly if we need to order parts or complete extensive mechanical work.

Once the repair is finished, we can explain whether the car needs a partial or full retest.

How Long Does an MOT and Service Take?

An MOT and car service will take longer than an MOT alone.

The MOT normally takes approximately 45 to 60 minutes. The additional time needed will depend on the service level and the maintenance your vehicle requires.

A service may involve:

• Changing the engine oil and oil filter
• Checking or replacing other filters
• Inspecting the brakes
• Checking the tyres
• Inspecting the steering and suspension
• Checking fluid levels
• Looking for leaks or signs of wear
• Completing scheduled maintenance

An interim service will generally take less time than a more comprehensive full or major service.

We normally recommend allowing several hours for a combined appointment. The exact time will depend on your vehicle, the chosen service and whether we find anything that requires further attention.

Booking both together can still be more convenient because you only need to bring the car to us once.

You can find more information about the available options on our car servicing in Nottingham page.

What Is the Difference Between an MOT and a Service?

An MOT and a car service may appear similar, but they perform different roles.

An MOT checks whether specified components meet minimum legal road-safety and environmental standards on the day of the inspection.

A car service focuses on routine maintenance and the vehicle’s overall condition.

An MOT can involve:

• Checking components against legal standards
• Recording minor, major and dangerous defects
• Recording advisory items
• Issuing a pass or failure result

A car service can involve:

• Changing engine oil
• Replacing filters
• Checking and topping up fluids
• Inspecting components for wear
• Following the manufacturer’s maintenance schedule
• Recommending preventative work

A car can pass its MOT but still be overdue for servicing. A well-serviced vehicle can also fail its MOT if one of the tested items does not meet the required standard.

Government guidance confirms that an MOT is not the same as a service and does not assess the vehicle’s general mechanical condition.

Can I Wait While My MOT Is Carried Out?

Yes. At Slater’s Garage, you can wait in our customer area while we carry out the MOT.

You can also leave your vehicle with us and return once it is ready.

Waiting may be convenient when:

• Your car is going directly into the test bay
• No other work has been booked
• The workshop is running to schedule
• You only need the MOT test

Leaving the vehicle with us may be more practical when:

• You have booked a service as well
• The workshop has several appointments
• The vehicle may require repairs
• You need the car completed later in the day

When you book, we will let you know what arrangements are likely to work best.

Our current MOT testing in Nottingham page contains more information about our waiting facilities and booking options.

How Can I Prepare My Car for Its MOT?

You cannot guarantee an MOT pass, but carrying out a few simple checks can help you spot obvious problems before the test.

Check your lights

Ask someone to help you test:

• Headlights
• Brake lights
• Indicators
• Hazard lights
• Rear lights
• Number-plate lights

Look at your tyres

Check that your tyres:

• Have enough tread
• Are properly inflated
• Have no obvious cuts or bulges
• Do not show exposed cords or serious damage

Check your windscreen and wipers

Make sure:

• The washer bottle contains fluid
• The wipers clear the screen properly
• Nothing obstructs your view
• The mirrors are secure and usable

Inspect your number plates

Your registration plates should be:

• Clean
• Secure
• Clearly readable
• Free from serious damage

Test the horn and seat belts

Make sure the horn works and that the seat belts fasten, release and retract correctly.

Look at the dashboard

Do not ignore warning lights. Some dashboard warnings can indicate faults that affect the MOT result.

GOV.UK also provides a useful guide to checking that your vehicle is safe to drive, including advice about tyres, lights, visibility and fluid levels.

These checks are not a substitute for the MOT. They simply give you a chance to deal with obvious problems before the appointment.

Can Regular Servicing Help Prevent MOT Problems?

Regular servicing cannot guarantee that your car will pass its MOT. However, it gives us opportunities to identify wear and maintenance requirements between annual tests.

During a service, we may identify:

• Worn brakes or tyres
• Low or deteriorated fluids
• Filters that need replacing
• Developing leaks
• Suspension wear
• Faulty lights or electrical components
• Other maintenance that is becoming due

Addressing these issues early may reduce the chance of an unexpected problem being found during the next MOT.

Servicing can also help maintain the car’s reliability, performance and service history.

How Long Should I Allow for an MOT?

The test itself normally takes around 45 to 60 minutes. However, we recommend allowing more time for the complete appointment.

Before the test, it helps to confirm:

• When you should bring the vehicle to us
• When the test is expected to start
• Whether you plan to wait
• When the car should be ready
• How we should contact you
• What you would like us to do if repairs are needed

The answer to “how long does an MOT take?” is usually less than an hour.

The answer to “when will I get my car back?” depends on the workshop schedule, the test result and whether the vehicle requires any additional work.

Book an MOT in Nottingham

At Slater’s Garage, we carry out professional MOT testing in Nottingham for cars and other suitable Class 4 vehicles.

Most tests take around 45 to 60 minutes. You can wait in our customer area or leave the vehicle with us and collect it when it is ready.

If we find an advisory item or a defect, we will explain it clearly and discuss your options. We will not begin additional chargeable repairs without speaking to you first.