Pre-Purchase Inspection — 60-Point Used Car Audit

Todd Mitchell (photo)
By Todd Mitchell
On: Saturday, June 13, 2026 7:37 PM
pii

Pre-Purchase Inspection Checklist

Pre-purchase inspection checklist — 60+ items to check before buying a used car. Built from ASE-certified mechanic inspection sheets covering exterior, interior, mechanical, electrical and road test.

Pre-Purchase Inspection Checklist

16-point used-vehicle inspection with auto-scoring and buy/walk recommendation.

Inspection score
Passed
Failed
Recommendation

How It Works

The checklist is grouped into 8 categories. Tick items as you inspect; the tool flags any “critical fail” items and calculates an overall condition score.

Formula: Condition score = (passed items ÷ total items) × 100, with critical fails capping the score at “Pass with caution” or “Walk away”.

How to Use This Calculator

  1. Open the checklist and walk around the vehicle in good daylight.
  2. Tick each item as Pass, Concern, or Fail.
  3. Critical items (frame damage, blown head gasket signs, etc.) cap the score.
  4. Print or screenshot the result before negotiating price.

Worked Example

Example: 2018 Honda Accord, 92k mi. 56/62 items pass. Concerns: minor oil seep at valve cover ($300 fix), worn rear brake pads ($400). No critical fails. Result: “Good — negotiate $700 off asking price”.

Reference Table

Always combine this checklist with a vehicle history report (Carfax, AutoCheck) and an independent mechanic’s lift inspection.

Inspection category Items
Body & paint Panel gaps, repaint signs, rust spots
Glass & lights Chips, cloudy headlights, working signals
Tires & wheels Tread depth, wear pattern, sidewall damage
Underbody Frame rust, leaks, exhaust condition
Engine bay Fluid colors, belt condition, leak signs
Interior & electronics Seat wear, controls, infotainment
Road test Steering pull, brake feel, transmission shifts
OBD-II scan Stored and pending codes (any code = ask why)

Frequently Asked Questions

Should I still pay a mechanic if I use this checklist?

Yes — for any vehicle over $5k or with unknown maintenance history. A lift inspection ($100–150) catches frame and suspension issues you can’t see standing.

What’s a critical fail?

Frame damage, head gasket signs (coolant in oil or vice versa), bent unibody, salvage title, mismatched VIN. Any one is a walk-away.

Can I use this for a private-party sale?

Yes — especially useful for private sales where there’s no dealer recon. Bring a flashlight, OBD-II scanner and the printed checklist.