Reliable Diagnostics & Auto Repair in Alsip IL.
ATS II
From check engine lights to full repairs, ATS Auto Repair & Diagnostics keeps your car running like it should—without the guesswork.
Why Our Clients Trust Us
✔ Same-Day Service Available
✔ Accurate Diagnostics
✔ Transparent Pricing
✔ Honest Recommendations
Most shops replace parts until the problem disappears.
We use advanced diagnostic tools to pinpoint the issue first, saving you time and money.
Our Services
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Engine Diagnostics
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Break Repair
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Oil Change
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Transmission Repair
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Electrical Work
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AC & Heating
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Suspension & Steering
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Battery Replacement
5227 W 111th St. Alsip IL, 60803
Location & Hours
Monday—Friday: 9AM-6PM
Saturday—Sunday: Closed
What People Are Saying
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⭐️⭐️⭐️⭐️⭐️ “Took my car in for a check engine light and they figured it out quick. Didn’t try to upsell me anything. Solid shop.”
— Former Customer
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⭐️⭐️⭐️⭐️⭐️ “Car was making a weird noise, ATS found the issue same day and fixed it. Pricing was fair too.”
— Former Customer
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⭐️⭐️⭐️⭐️⭐️ “Finally a mechanic that actually explains what’s wrong. Straightforward and honest. I’ll be back.”
— Former Customer
Your Questions, Answered
How do I know if my car needs repair?
If you notice unusual noises, warning lights, poor performance, or changes in how your car drives, it’s best to have it inspected as soon as possible. Small issues can turn into expensive repairs if ignored.
Do you offer same-day auto repair?
Yes, many services like diagnostics, oil changes, brakes, and battery replacements can often be completed the same day depending on availability.
How much does a diagnostic cost?
Diagnostic costs vary depending on the issue, but we always provide transparent pricing upfront and explain exactly what you’re paying for before starting any work.
Do I need an appointment?
Appointments are recommended to reduce wait time, but we also accept walk-ins based on availability.
What types of vehicles do you work on?
We service most domestic makes and models, Volkswagen and Audi vehicles.