Repair Lane

Coolant Flush

Old coolant is drained and flushed out, then the system is refilled with the correct fresh coolant for your vehicle.

Difficulty: easy~0.81.2 hrsAbout an hour
Estimated total
$115–300
Parts$25–90
Labor$90–210
Labor time0.81.2 hrs
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What's involved

What this repair actually is.

We drain the old coolant, flush the system to remove rust, scale, and degraded fluid, then refill and bleed it with the manufacturer-specified coolant. Coolant wears out over time and loses its corrosion protection, which quietly damages the radiator, water pump, and heater core from the inside.

Symptoms

How you can tell.

  • Coolant looks rusty, brown, or muddy
  • It's been 5+ years or 60,000+ miles since the last flush
  • Heater isn't as warm as it used to be
  • Coolant reservoir has sludge or floating debris
  • You've been topping off with tap water
If you delay

Worn-out coolant corrodes the radiator, water pump, and heater core from the inside, leading to leaks and expensive replacements.

Educational estimate. Real pricing depends on your vehicle, the inspection, parts availability, taxes, and shop rates. Use this as a guide while you shop quotes.
Related

Often done together.