Coolant Flush in the area around Key Largo, FL averages $115.00, with prices ranging from $79.99 to $225.00 based on 20 verified prices from 20 nearby shops.
Showing nearby shops within 25 mi of Key Largo · July 2026
Coolant Flush prices in Key Largo, FL range from $79.99 to $225.00 at local auto repair shops, based on verified pricing data gathered from 20 shops across the area. Your engine's cooling system circulates a water-and-glycol mixture (antifreeze/coolant) through passages in the engine block and head, absorbing heat and dissipating it through the radiator. Prices for this service in Key Largo vary by vehicle make and model, the grade of parts and fluids used, and whether you book with an independent shop, a franchise chain, or a dealership. Independent and chain repair shops in Key Largo typically charge 20 to 40 percent less than dealerships for this service; dealerships may justify the premium for warranty-covered work or brand-specific diagnostics. All prices listed on this page were verified directly from shop websites or user-submitted receipts, and each carries a Last Verified date. For details on how PriceMyFix verifies prices, visit pricemyfix.com/about/methodology.
| Shop | Type | Price | Details | Verified | Distance | Actions |
|---|---|---|---|---|---|---|
| Bill's Custom Automotive Inc82760 Overseas Highway | Independent | $99.95CouponBelow avg | Last verified 83 days agoby PriceMyFix | 15.6 mi | View Shop | |
| Mobil74052 Overseas Highway | Independent | $99.99CouponBelow avg | Last verified 83 days agoby PriceMyFix | 23.9 mi | View Shop | |
| Right Moment Mobile Tire Shop106 Southwest 5th Avenue | Independent | $99.99Below avg | Last verified 89 days agoby PriceMyFix | 26.5 mi | View Shop | |
| USA Special Mechanic30070 South Dixie Highway | Independent | $89.99Below avg | Last verified 89 days agoby PriceMyFix | 27.7 mi | View Shop | |
| THE TIRE HOUSE30000 South Dixie Highway | Independent | $99.95CouponBelow avg | Last verified 89 days agoby PriceMyFix | 27.8 mi | View Shop | |
| Ray's Auto Repairs18750 Southwest 105th Place | Independent | $89.99Below avg | Last verified 89 days agoby PriceMyFix | 35.4 mi | View Shop | |
| Piston Garage Car Care Center18728 Southwest 107th Avenue | Independent | $129.99 | Last verified 89 days agoby PriceMyFix | 35.4 mi | View Shop | |
| Prestige Auto Tech—Pinecrest8800 Southwest 129th Street | Independent | $129.99 | Last verified 93 days agoby PriceMyFix | 39.6 mi | View Shop | |
| MIAMI MOBILE AUTO REPAIR14313 Southwest 100th Lane | Independent | $225.00Above avg | Verified 3 weeks agoby PriceMyFix | 40.7 mi | View Shop | |
| A Auto Tech Inc3051 Southwest 38th Court | Independent | $119.95Coupon | Most vehicles. | Verified 3 weeks agoby PriceMyFix | 46.3 mi | View Shop |
| Manny's Auto Service, Inc.5609 Northwest 6th Street | Independent | $119.99 | Last verified 89 days agoby PriceMyFix | 48.8 mi | View Shop | |
| Advanced Auto Diagnostics2215 Northwest 97th Avenue | Independent | $79.99CouponBelow avg | Verified 3 weeks agoby PriceMyFix | 49.3 mi | View Shop | |
| Mario Busto Auto Repair1160 Southwest 5th Street | Independent | $119.99 | Last verified 89 days agoby PriceMyFix | 49.3 mi | View Shop | |
| All Auto Tech Inc - Auto Repair Doral2379 Northwest 97th Avenue | Independent | $119.95 | *** other fees may apply *** | Verified 2 weeks agoby PriceMyFix | 49.4 mi | View Shop |
| George & Sons Tire Corporation3090 Northwest 7th Street | Independent | $99.95CouponBelow avg | Last verified 89 days agoby PriceMyFix | 49.5 mi | View Shop | |
| AutoVice875 West Flagler Street | Independent | $99.95CouponBelow avg | Verified 3 weeks agoby PriceMyFix | 49.8 mi | View Shop |
The average coolant flush in Key Largo, FL costs $114.04 across 16 shops. The cheapest verified price is $79.99 at Advanced Auto Diagnostics.
Trucks and SUVs with higher oil capacity may cost more. Check individual shop listings for vehicle-specific pricing.
Your engine's cooling system circulates a water-and-glycol mixture (antifreeze/coolant) through passages in the engine block and head, absorbing heat and dissipating it through the radiator. Coolant also provides freeze protection down to -34°F and contains corrosion inhibitors that protect aluminum, copper, and iron cooling system components from galvanic corrosion. Over time, these inhibitors deplete, the coolant becomes acidic, and corrosion begins inside the system. A coolant flush drains and refills the entire system with fresh coolant and inhibitors.
Most manufacturers recommend 50,000–100,000 miles or 5 years for modern long-life coolants. In the Sun Belt, use the shorter end — sustained heat cycles deplete inhibitors faster. Specific triggers: (1) coolant appears rusty or brown instead of its normal color (green, orange, pink, or blue depending on type), (2) sweet smell from under the hood — often a hairline coolant leak, (3) vehicle runs hotter than normal or temperature gauge climbs higher than usual, (4) any coolant system work (water pump, hose, thermostat replacement) — flush the system while it's open.
Delaying a coolant flush is a slow deterioration, not a sudden failure — but the consequences are severe. Acidic degraded coolant corrodes aluminum heads, water pump impellers, and heater cores. Heater core replacement runs $600–$1,200 (it's buried in the dashboard). Water pump failure leaves you stranded and can cause engine overheating — which causes head gasket damage at $1,500–$3,500. A $120–$180 coolant flush every 5 years prevents this entire chain of failures. It's one of the best-value preventive maintenance items on any vehicle.
Coolant type matters and is not universal: mixing coolant types (e.g., DEXCOOL orange with standard green) causes gelling that can clog the heater core. Ask your shop specifically what coolant they're using and verify it matches your vehicle's spec. Red flags: (1) shops that 'top off' coolant instead of flushing — adding fresh coolant to degraded coolant does not restore inhibitors, (2) flush machines that claim to 'exchange' coolant but leave 20–30% old coolant in the block — ask if they do a drain-and-fill or a full machine flush with distilled water rinse, (3) shops quoting coolant flush every 30,000 miles for modern long-life coolants — that's unnecessarily frequent.
All prices verified from public sources and user submissions. Learn about our verification methodology.
