A free inspection can leave diagnostic testing chargeable. Compare what the shop will test and the full written repair estimate before approving work.
Christian Brothers Bartram Park makes the distinction explicit: its published courtesy-inspection offer does not include diagnostic testing. That is an important detail when a warning light or an intermittent fault is the reason for your visit.
An inspection may identify visible wear. Diagnosis investigates why something is happening. A scan result can guide that investigation, but a code by itself does not price the repair. A useful booking conversation establishes what the testing includes and how it is charged.
| Item | What the written quote should make clear |
|---|---|
| Diagnosis | The test scope and charge, including whether additional testing needs approval. |
| Parts | Whether the proposal uses new, used or rebuilt parts. |
| Labor | How the labor is charged and which work is included. |
| Additional charges | Any stated supplies, disposal, teardown or estimate charges. |
| Warranty | The coverage for the part and its installation. |
A lower estimate can describe less work. On a brake job, a pads-only price will not compare cleanly with pads and rotors. On a transmission job, a fluid change is not an alternative price for an internal rebuild.
The Florida Department of Agriculture and Consumer Services says repairs expected to cost more than $150 must offer a written-estimate option, a chosen spending limit or a waiver. A shop cannot force the customer to waive the estimate.
Its consumer guide also explains approval when a repair exceeds an authorized estimate by more than $10 or 10%, whichever is greater. Keep the authorized amount and any approved changes together with the final invoice.
“The AC gets warm after ten minutes at idle” gives the technician something to investigate. “Replace my compressor” jumps straight to a purchase. Include the vehicle details and explain when the problem appears, then let the testing establish the proposed repair.
Before dropping the car off, settle the charge for that first investigation and how the shop will get approval for more work. That keeps diagnosis from quietly turning into an open-ended repair authorization.