In used cars, a minor bump is normal: a repainted wing, a bumper touch-up, the odd parking scrape. The problem starts when we’re talking about a serious accident, one that affects the structure, passive safety or the car’s geometry. It’s the classic case where “it looks perfect on the outside”, but inside it leaves signs… and if it goes into stock without being detected, it ends in claims, returns and a difficult sale.

The most reliable way to reduce the risk is not to “look harder”, but to have a repeatable process in three layers: first filter with documentation, then carry out a visual inspection with judgement, and if there is real doubt, confirm with a road test and technical verification.

What we mean by a “serious accident” in a used car

To decide quickly, think of it this way: a serious accident is not “a repainted panel”; it is when there are signs that the car has suffered an impact that could compromise the structure or safety.

In a dealership, treat it as serious if there are signs of:

• Structural damage (longitudinals, crossmembers, strut towers, pillars, floor, engine cradle, chassis/subframe)

• Airbags deployed or pretensioners activated with an unclear repair

• Misalignment affecting tracking, steering or geometry in a persistent way

• Repairs with cutting/welding in sensitive areas or structural replacement without traceability

Step 1: document check

Here you’re not going to “discover the accident” with a piece of paper, but you can spot inconsistencies that justify a tougher inspection or a straight rejection.

Full DGT report

Use it as a filter to see whether the history makes sense. Typical red flags are:

• Ownership changes that are too frequent or don’t make sense

• Odd jumps in mileage or MOT history

• MOTs with repeated major defects (a possible clue to safety issues)

• Administrative status with issues that complicate the deal

Bear in mind: the DGT report is not a claims register. It helps you spot “things that don’t add up” and decide how far to escalate the inspection.

History reports (CARFAX-style) for imports or odd cases

It’s useful as a second source when the car is imported or the history is patchy. The important thing is how you use it:

• If a claim shows up, ask for traceability: invoices, photos, the workshop and a coherent explanation

• If nothing shows up, it doesn’t mean nothing happened: keep going with inspection and test

Invoices and maintenance

This is sometimes where the real pattern is. In particular, check whether there are:

• Repeated bodywork/paint invoices

• Replacement airbags/pretensioners

• Frequent wheel alignments

• Repeated suspension replacements on the same axle

If there’s no paperwork and the car looks “too perfect”, raise the level of verification.

Step 2: visual inspection

Visual inspection is not about looking for a scratch; it’s about spotting signs that, taken together, tell a story.

1) Misalignment and gaps in the bodywork

Start from a distance to check symmetry. Then move closer to what gives away poorly carried-out repairs:

• Uneven gaps between the bonnet, wings and doors

• Doors that don’t shut smoothly (you have to “pull” or adjust them)

• Wheels that don’t sit the same in the wheel arches

An isolated symptom could be adjustment. Several at once usually point to a serious repair.

2) Bolts and hinges

Look for a build-up of clues:

• Bolts with tool marks

• Hinges with chipped paint

• Paint overspray over seals or trim

It’s not definitive proof, but it adds suspicion points when it appears in several areas.

3) Paint: distinguishing a scrape from a major repair

A repainted panel can be normal. What is less normal is seeing:

• Several panels with strong differences in finish

• Odd transitions (paint lines)

• Areas suggesting filler or “build-up”

If you see that, move to the next level: underside and structure.

4) Underside and structural points

If you can get it on a lift, even better. If not, light and patience:

• Creases, dents or odd welds in longitudinals/crossmembers

• Suspension mounts with deformation or new parts only on one side

• Wheel arches with filler/uneven paint and poor fit

5) Airbags and passive safety

If you suspect it, don’t leave it at “I think so”. Typical signs:

• Steering wheel/dashboard that sits badly or has a different texture

• Seatbelts with “new” labels only at the front

• Airbag warning light behaving oddly when the ignition is switched on

At that point: diagnostics and, if necessary, an expert inspection.

6) Glass and headlamps

Windscreen + replaced headlights + repainted front end can fit with a front-end impact. It doesn’t prove it on its own, but it does mean you need to verify it with evidence.

Step 3: road test and technical verification

A short but purposeful test is worth its weight in gold. Look for symptoms that keep turning up on cars with “not quite perfect” repairs.

In 10–15 minutes, note if:

• The car pulls to one side on a straight road

• There is vibration under braking or at a certain speed

• The steering wheel is off-centre to drive straight

• Suspension noises are localised (one side only)

• The steering doesn’t self-centre properly

If two or three signs appear together, stop interpreting it and take it to the workshop.

Useful questions to spot whether a car has had an accident

How can you tell if a used car has had a serious accident? With a 3-step method: document review (DGT + invoices + history), a visual inspection focused on structure/airbags, and a road test with technical verification if there is any doubt.

Does the DGT report show accidents? No, it is not an accident register. It helps detect inconsistencies and risks (owners, mileage, MOT, issues) and decide whether to escalate the inspection or commission an expert report.

What signs point to structural damage in a used car? Uneven gaps, misalignment, non-original welds in structural areas, deformation in suspension points and persistent alignment or steering problems.

Is it worth paying for a CARFAX-style report? For imports or unclear histories, it can provide extra data, but it doesn’t capture all accidents. It’s a supplement, not a substitute for inspection and a test drive.