Winter is rough on vehicles. Road salt, temperature swings, potholes that appear overnight — by the time March rolls around, your car has been through it. The question isn't whether you need a spring inspection. It's knowing what to actually look for versus what shops like to upsell when they know you're in a maintenance mindset.
Here's a no-nonsense checklist of the ten things that genuinely matter.
1. Tires
Start here. Winter driving and cold temperatures affect tire pressure — typically one pound per square inch for every 10 degrees of temperature change. Check your pressure against the sticker in your door jamb (not the number on the tire sidewall). While you're at it, check tread depth with a quarter. Insert it upside down into a tread groove — if you can see all of Lincoln's head, you're under 4/32" and should start shopping for new tires.
Mobile mechanic can handle: Pressure check and tread assessment. Tire rotation at a minimum.
2. Brakes
Winter driving means heavy braking on slick roads. Listen for squealing or grinding, and pay attention to any pulsing in the brake pedal. A visual inspection of pad thickness through the wheel spokes is easy for any mechanic. If you're over 30,000 miles since your last brake inspection, get eyes on them now.
Mobile mechanic can handle: Visual inspection. Pad measurement. Minor brake work.
3. Battery
Cold weather is a battery killer. A battery that limped through February may not survive another winter. Battery load testing (not just a voltage check) tells you the real state of the battery. Most batteries last 3–5 years; if yours is approaching that range, test it before you're stranded.
Mobile mechanic can handle: Load testing and battery replacement.
4. AC System
You probably haven't used it since last fall. Before the first hot day catches you off guard, run the AC for 10 minutes and make sure it's blowing cold. Refrigerant doesn't "run out" under normal circumstances — if the system isn't cooling, something is wrong.
Mobile mechanic can handle: Basic performance test. Some can handle refrigerant top-offs with proper equipment.
5. Wiper Blades
Winter wiper blades are heavier and take more wear. Spring is a natural time to swap them. A good wiper blade should clear your windshield in one pass without streaking or skipping. If it's doing either, replace it.
Mobile mechanic can handle: Wiper blade replacement takes five minutes.
6. Fluids
Check coolant, power steering fluid, brake fluid, and windshield washer fluid. After winter, washer fluid especially tends to run low. Brake fluid absorbs moisture over time — if it's been more than two years since it was changed, it's worth testing.
Mobile mechanic can handle: Fluid top-offs and visual checks.
7. Belts and Hoses
Cold temperatures cause rubber to harden and crack. Inspect your serpentine belt for cracking or fraying at the edges. Check coolant hoses for soft spots or bulging. These aren't urgent until they fail — and they tend to fail at the worst time.
Needs a shop: Full belt replacement typically requires lifting and accessing the engine in ways that are easier on a lift.
8. Alignment
If your car pulled to one side after hitting a pothole this winter, your alignment may be off. Bad alignment causes uneven tire wear — which means you're burning through tires faster than you should. An alignment check is quick and inexpensive to diagnose.
Needs a shop: Alignment requires specialized equipment.
9. Cabin Air Filter
If you don't remember when you last changed it, change it now. A clogged cabin air filter makes your HVAC system work harder, reduces airflow into the cabin, and can affect AC performance.
Mobile mechanic can handle: Easy access on most vehicles, takes 10 minutes.
10. Exterior Lights
Walk around your car and check every light — headlights, taillights, turn signals, brake lights. Have someone help with the ones you can't see while sitting in the driver's seat. A burned-out brake light is a ticketable offense and a safety issue.
Mobile mechanic can handle: Bulb replacement on most vehicles. Some LED modules require a shop.
The Takeaway
A thorough spring inspection should take a competent mechanic 45 minutes to an hour. A mobile mechanic can handle most of this list at your home or office — which is convenient and removes the temptation for upsells that happen in waiting rooms. For items that require a lift or specialized equipment (alignment, some belt replacements), a shop is the right call.
Need a vetted mechanic for your spring inspection? Find one in our directory.