The Complete Vehicle Inspection Checklist for Auto Shops
A systematic inspection catches problems early, prevents comebacks, and builds customer trust. Use this checklist for every vehicle that enters your shop.
A vehicle inspection is not optional. Every car that enters your shop should receive a multi-point inspection — even if the customer is only there for an oil change. An inspection catches issues the customer didn't know about, uncovers upsell opportunities, prevents comebacks (you catch a problem early and mention it), and builds trust. A customer who comes in for a $50 oil change and leaves with a written inspection showing their brake pads are at 30% life, their cabin air filter is clogged, and their coolant is due for service at 90K miles sees your shop as thorough and trustworthy. Many of these customers will approve additional work.
Pre-Service Inspection: Before Work Begins
Vehicle identification: Year, make, model, mileage, license plate. Document with photos (exterior, interior, odometer). Fluid levels: Check all fluid levels (oil, coolant, brake fluid, power steering, transmission, washer fluid) and note condition (low, correct, overfilled; color; any leaks). Tire inspection: Tire brand, tread depth (measure with a penny), wear pattern (even = good alignment; inside/outside wear = alignment issue), condition (cracking, bulges, punctures). Brake inspection: Pad thickness, rotor condition (smooth or scored), brake fluid color (clear or dark), brake feel (soft vs. firm). Lights: Headlights, taillights, brake lights, turn signals, fog lights — test all. Wipers and washers: Blade condition, washer fluid level, spray pattern. Exterior: Body damage, rust, missing trim, cracked lights. Note any damage so you're not blamed for it.
Under-the-Hood Inspection
Battery: Age (if original, note the date; most last 4-6 years), condition (corrosion, secure terminals, voltage test). Air filter: Condition (clean or clogged), replacement schedule. Hoses and belts: Cracks, splits, drying, proper tension, wear. Fluid leaks: Oil leaks around the pan or valve covers, coolant weeping from hoses, transmission fluid spots. Spark plugs (if visible and in good condition, or if service is due): Gap, carbon buildup, color. Oxygen sensors and ignition coils (if issues are present): Condition. Suspension components (if visible): Strut/shock condition, control arm wear, ball joint condition. Brakes (if service is being done): Caliper condition, pad material, rotor scoring.
Suspension and Steering Inspection
Jack the vehicle safely or use a lift. Grasp the tire at 9 o'clock and 3 o'clock and try to move it — any play indicates wheel bearing wear. Grasp the tire at 12 o'clock and 6 o'clock and try to move it — any play indicates suspension wear (ball joint, tie rod). Visually inspect: Strut boots for tears (torn = bad strut), control arms for bending, tie rods for damage, sway bar links for looseness. Bounce the vehicle at each corner — it should compress and return smoothly, not oscillate multiple times (worn shocks). Steering: Turn the wheel fully and listen for clicking (CV joint wear in front-wheel-drive) or grinding (bearing wear). Note all findings.
Brake System Thorough Inspection
Pad thickness: Use a caliper or visual inspection. Under 3mm = replacement needed. Rotor condition: Look for scoring (light surface wear is normal; deep grooves or glazing = replacement needed). Brake fluid level and color: Low or dark = flush needed. Brake lines and hoses: Look for leaks, corrosion (white/blue deposits on lines), cracks in hoses. ABS module and sensors: Look for corrosion or damage. Brake feel: Soft pedal = air in lines or low fluid. Spongy = contaminated fluid. Hard = failing booster. Test drive: Braking response, any pulling, noises.
Electrical System Inspection
Battery: Voltage test (should be 12.6V+ at rest, 13.5-14.5V while running). Alternator: Check voltage output (should be 13.5-14.5V at idle, up to 15V at higher revs). Starter: Test rotation speed. Lights: Headlights, taillights, brake lights, turn signals, fog lights. Test all. Dashboard lights: Are there any warning lights? Note them. Wipers: Blade condition, wiper motor speed, washer pump operation. Power windows, locks, seat adjustments: Any electrical issues. Glove box light, interior lights, courtesy lights: All functional.
Test Drive and Final Assessment
Start the vehicle: Does it start easily? Any grinding or hesitation? Listen for unusual noises. Acceleration: Any hesitation, knocking, rattling. Shifting (automatic): Smooth engagement, no harsh shifts or delays. Braking: Responsive, no pulling, no noise. Handling: Smooth steering, no vibration, no pull to one side. Noise: Listen for grinding, clunking, squealing, rattling over bumps. Any warning lights during test drive? Note everything. After test drive, compile all findings into a written multi-point inspection report.
Mechanics supports reusable inspection templates, findings, notes and photos. Shops share inspection results through customer portal links so customers can review the proposed work. Results depend on the inspection and the customer's decision; the app does not guarantee an approval or sales outcome. Explore <a href='/features#inspections'>inspection features</a>.
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