Your vehicle's cooling system is what keeps your engine running at the correct temperature — preventing both overheating and inefficient cold operation. When the cooling system fails, the consequences can be severe, including warped cylinder heads, blown head gaskets, and complete engine failure.
At Hahn Automotive in Santa Rosa, we service the entire cooling system: radiator, water pump, thermostat, coolant hoses, radiator cap, overflow reservoir, and heater core. We perform cooling system flushes, pressure tests for leak detection, and complete radiator replacement when necessary.
If your temperature gauge is creeping up, you're losing coolant, or your heater isn't producing enough heat, bring your vehicle to us before a small cooling issue becomes a catastrophic engine failure.
Signs You Need Radiator Repair
Our Process
Cooling System Pressure Test
We pressurize the cooling system to identify any leaks from the radiator, hoses, water pump, or heater core.
Thermostat & Component Check
We verify thermostat operation, water pump output, radiator cap pressure, and fan operation.
Coolant Condition Analysis
We test coolant condition including pH and freeze protection, and check for contamination indicating head gasket issues.
Repair & Flush
We complete the necessary repairs, flush and refill with fresh coolant, and road test to verify proper temperature control.
Why Choose Hahn Automotive?
Act Before Failure
Cooling system issues caught early are inexpensive repairs. Ignoring them leads to engine damage costing thousands.
Complete System Service
We inspect every cooling system component, not just the leaking hose everyone can see.
Same-Day Service
Many cooling system repairs and flushes can be completed same day, getting you back on the road quickly.
Quality Coolant
We use the correct coolant type for your vehicle — not one-size-fits-all generic coolant that can cause corrosion.