What is a pre-purchase inspection?
A pre-purchase inspection, often shortened to PPI, is a check of a used vehicle's condition before you commit to buying it. Its goal is simple: to find problems before they become your problems.
A complete PPI has several parts. You can do some of them yourself, while others need a qualified technician.
| Part of the inspection | Who usually does it | What it covers |
|---|---|---|
| History and paperwork check | Buyer | Ownership, reported incidents, recalls, service records |
| Exterior walk-around | Buyer or inspector | Visible damage, signs of repair, glass, lights, wheels, tires |
| Interior check | Buyer or inspector | Wear, damage, features, warning lights, odors |
| Test drive | Buyer | How the vehicle drives, brakes, steers, and sounds |
| Mechanical inspection | Qualified technician | Engine, transmission, suspension, brakes, underbody, diagnostics |
Before you see the car
- Check the vehicle history. A vehicle history report can show reported incidents, title issues, and ownership history. It is not a substitute for an inspection, because not every incident is reported.
- Check for open recalls using the VIN with the manufacturer or the relevant authority where you live.
- Ask for service records. Regular maintenance is a good sign.
- Ask for complete photos. Request images from every angle, not just the most flattering ones. Our guide on how to photograph a vehicle for inspection lists the standard angles to ask for.
- Confirm the VIN on the paperwork matches the VIN on the vehicle.
The exterior walk-around
Inspect the vehicle in daylight, ideally when it is clean and dry. Walk around it slowly, then crouch down to look along each side.
Visible damage
Look for scratches, scuffs, dents, cracks, and chips on every panel, bumper, and mirror. Our guide to the types of vehicle damage explains how to tell them apart.
Signs of previous repairs
Previous repairs are not automatically a problem, but you should know about them. Common indicators include:
- Uneven panel gaps between doors, the hood, fenders, and trunk
- Paint that does not quite match between neighboring panels, especially visible in sunlight
- Overspray on rubber seals, trim, or glass edges
- Different textures in the paint finish
- Non-matching or replacement glass without the same markings as the other windows
Glass and lights
Check the windshield for chips and cracks, and confirm that headlights, taillights, and signal lights are intact and working.
Wheels and tires
Look for curb damage on the wheels. Check that the tires have adequate tread and are wearing evenly; uneven wear can point to alignment or suspension issues.
Rust and corrosion
Check wheel arches, door bottoms, sills, and around the trunk and hood edges, especially in regions that use road salt.
The interior
- Seats, carpets, and headliner: tears, stains, burns, and water marks
- Dashboard: warning lights after start-up
- Odometer: does the reading fit the vehicle's age and wear?
- Electronics: windows, locks, climate control, infotainment, and cameras
- Odors: smoke, mildew, or anything that suggests water getting in
The test drive
Drive on different road types if you can. Pay attention to how the vehicle starts, accelerates, brakes, and steers, and listen for unusual noises. Check that it tracks straight and that the brakes feel even.
Why a mechanical inspection is worth it
A visual inspection and test drive cannot tell you everything. A qualified technician can lift the vehicle, inspect the underbody and suspension, check for leaks, and read diagnostic codes. For most used-vehicle purchases, a professional mechanical inspection is strongly recommended before you buy.
Costs and availability vary by location and by how detailed the inspection is, so ask local repair shops what their pre-purchase inspection includes.
Buying a used car remotely
When you cannot see a vehicle in person, the quality of the information you receive matters even more. Ask the seller or platform for:
- A complete set of photos from consistent angles, including close-ups of any damage
- A structured vehicle condition report listing visible findings and their locations
- Service records and a vehicle history report
- An independent inspection where possible
Read more about how used car marketplaces and auctions document vehicle condition.
Document the vehicle when you buy it
Once you buy the vehicle, document its condition with a full set of photos. This record is useful later: when you sell the car, file an insurance claim, or need to show what condition it was in at a particular date.
How Carivion can help individual buyers and owners
Carivion's guided smartphone capture walks you through a consistent set of vehicle angles, and AI-assisted analysis helps identify and localize visible exterior damage such as scratches, dents, cracks, glass damage, and damaged lights. The results are organized into a structured condition report that you can keep and share.
Carivion covers visible exterior condition. It does not replace a mechanical inspection, a vehicle history check, or a test drive, and it does not determine a vehicle's value.
See how Carivion standardizes vehicle inspections.
Guided smartphone capture, AI-assisted damage detection, and structured condition reports with human review.