What to Check When Buying a Used Car: A Complete Inspection Guide

How Do You Check the Exterior Condition of a Used Car?

The exterior is a good starting point when inspecting a used vehicle because it can reveal a great deal about how the car has been treated throughout its life.

Begin by walking around the vehicle in good natural light, looking carefully at the paintwork for scratches, dents or signs of corrosion. Minor cosmetic imperfections are not necessarily a cause for concern, especially on an older vehicle, but more significant damage may affect the car's value or indicate that further investigation is needed.

Pay particular attention to the gaps between body panels. These should generally be consistent, although slight variations can occur between manufacturers and models. Uneven gaps around the bonnet, doors or boot could suggest that panels have previously been removed, replaced or incorrectly aligned.

You should also look for differences in paint colour or texture between adjoining panels. These can indicate previous repair work, although a professional assessment may be needed to determine the reason and whether the work has been completed to an acceptable standard.

How Can You Tell If a Used Car Has Been Involved in an Accident?

One of the most important considerations when buying a used vehicle is whether it has sustained previous accident damage and, if so, how effectively it has been repaired.

Not every repair should be considered a problem. Many vehicles undergo minor cosmetic work during their lifetime, and professionally completed repairs do not automatically make a car unsuitable for purchase. However, poorly executed repairs or evidence of structural damage should be reviewed. 

Signs of previous accident repairs that have been poorly executed can include overspray on surrounding components, unusual panel alignment or inconsistent paint finishes. More substantial repairs may also leave evidence around structural sections of the vehicle.

Identifying these issues often requires specialist knowledge because some repairs are extremely difficult to recognise without experience.

At CARS of Grimsby, years of repairing accident-damaged vehicles have given our team a trained eye for these details. We understand where previous damage may be visible and how repair quality can affect the condition of a vehicle.

You can learn more about what accident repair experience teaches us about buying a used car here.

What Should You Look for When Checking Tyres and Wheels?

Tyres are another important area to examine. Check that each tyre has sufficient tread remaining and look for uneven wear across the surface.

Uneven tyre wear can sometimes indicate incorrect wheel alignment or worn suspension components, particularly if one side of a tyre is noticeably more worn than the other. Examine the tyres for cuts or bulges and inspect the wheels for significant damage. A badly damaged alloy wheel could indicate that the vehicle has previously struck a kerb or pothole.

Replacing tyres can represent an additional expense shortly after purchase, so their condition should be considered when assessing the overall value of the car.

What Mechanical Checks Should You Make Before Buying?

Although a comprehensive mechanical inspection is best completed by a qualified technician, there are several basic checks buyers can make when viewing a used car.

Start by looking beneath the bonnet for obvious fluid leaks, damaged hoses or signs of poor maintenance. Ask to start the engine from cold if possible, as some issues may be easier to identify before it reaches normal operating temperature. Unusual knocking noises, excessive vibration or warning lights that remain illuminated could indicate a problem requiring further investigation.

It is also worth considering the condition of the exhaust system and whether any unusual smoke is produced while the engine is running. Remember that a vehicle can appear mechanically sound during a brief inspection while still having faults that require professional diagnostic equipment to identify.

What Should You Check Inside a Used Car?

The interior can often give you an indication of how carefully a vehicle has been looked after by its previous owners.

Examine the seats and upholstery for excessive wear. Although some wear is expected, significant deterioration may warrant further questions about the vehicle's previous use.

Make sure the windows operate correctly and test the air conditioning or heating system. Check that the dashboard functions as expected and that no warning lights remain illuminated after the engine has started.

You should also inspect the boot and lift the boot floor where accessible, looking for evidence of water ingress or damage. A musty smell or damp carpets could indicate a leak that requires attention.

Consider whether the interior condition is consistent with the advertised mileage and age. While appearance alone cannot establish how far a vehicle has travelled, noticeable inconsistencies may justify further investigation.

Why Is a Used Car's Service History Important?

A vehicle's service history provides valuable information about how regularly it has been maintained and whether important work has been completed at the recommended intervals.

A full service history can provide reassurance, although the quality and completeness of the records are more important than simply having a stamped service book. 

It is also worth checking whether the manufacturer recommends any significant maintenance work based on the vehicle's age or mileage. If that work is approaching or has already become overdue, it could affect your future running costs.

A missing service record does not automatically mean a vehicle has been neglected, but it makes establishing its maintenance history more difficult.

How Do You Check a Used Car's MOT History?

Before buying a used car, you should review its MOT history to identify previous failures, advisory notices and any patterns of recurring problems.

The government's free MOT history checking service allows you to review recorded test results using the vehicle's registration number.

Pay attention to repeated advisories for issues such as corrosion or suspension components. If the same problem appears over several years, ask whether the necessary repairs have since been completed.

However, a valid MOT is not a guarantee that a vehicle is free from mechanical problems. An MOT assesses specific roadworthiness and environmental requirements at the time of testing and does not replace a detailed mechanical inspection.

What Vehicle History Checks Should You Complete?

Alongside the physical inspection, it is important to establish the vehicle's recorded history before making a purchase.

A vehicle history check can help identify whether a car has been recorded as stolen, has outstanding finance or has previously been declared an insurance write-off.

You should also examine the V5C registration certificate and confirm that the vehicle identification number (VIN) matches the car itself.

The government's guidance on checking a used vehicle before buying explains the key documentation and identity checks buyers should complete.

It is worth remembering that vehicle history reports have limitations. An accident that was repaired privately may not appear on insurance databases for example, which is why a physical inspection is important.

What Should You Look for During a Used Car Test Drive?

A test drive allows you to assess how a vehicle performs under normal driving conditions and whether it feels suitable for your everyday requirements.

Where possible, drive on different types of roads and pay attention to how the engine responds when accelerating. 

Listen for unusual noises when travelling over uneven surfaces, as these may indicate worn suspension components. Check that the brakes operate smoothly and that the gearbox changes gear without difficulty.

If you are considering an automatic vehicle, pay attention to how smoothly it changes gear during acceleration and when slowing down.

The test drive should also help you decide whether the driving position and overall comfort meet your expectations.

What Should You Ask a Used Car Dealer Before Buying?

Once you have inspected the car, there are several questions worth asking before making your final decision.

Find out what vehicle history checks have been completed and whether the dealer is aware of any previous accident repairs. Ask what servicing or mechanical preparation has taken place and whether any work remains outstanding. You should also establish what warranty is included, how long it lasts and what exclusions apply.

A reputable dealer should be willing to answer reasonable questions and explain the vehicle's known condition without pressuring you into making an immediate decision.

Why Is Vehicle Preparation Important When Buying a Used Car?

Two apparently similar used cars can represent very different value depending on the preparation completed before sale.

A vehicle that has undergone a comprehensive inspection and received necessary maintenance may offer better overall value than a cheaper alternative requiring additional work shortly after purchase.

At Select Vehicle Sales by CARS of Grimsby, we use our accident repair experience when assessing vehicles for sale, paying attention to condition and the quality of any previous repairs.

As an RAC Approved Dealer, our vehicles are prepared in accordance with recognised inspection standards. Every vehicle also comes with a full service, a clean 12-month MOT and a six-month RAC Approved warranty, alongside 12 months of complimentary RAC Breakdown cover.

You can find out more about what happens before we list a used vehicle for sale.

Buy Your Next Used Car with Confidence at Select Vehicle Sales

Taking the time to inspect a used car properly can help you make a more informed decision and reduce the likelihood of unexpected problems after purchase.

At Select Vehicle Sales by CARS of Grimsby, we understand that buying a used vehicle involves a considerable amount of trust. Our experience in accident repair gives us a thorough understanding of what to look for when assessing vehicle condition, and we apply that knowledge to the cars and vans we offer for sale.

If you are looking for a quality used car in Grimsby or the surrounding areas, our team will be happy to explain the vehicles currently available and answer any questions you may have.

Browse our latest selection of used cars and vans, or visit us at Estate Road 8, South Humberside Industrial Estate, Grimsby.

If you have a vehicle you are considering selling or part exchanging, you can also request a free, no-obligation vehicle valuation.