| Brake system inspection |
Squealing, grinding, vibration, a soft pedal, pulling to one side, or a brake warning light. |
When the symptom occurs, whether braking distance has changed, and the last known brake service date. |
Inspect pads, rotors, calipers, brake lines, fluid condition, and hydraulic operation; measure relevant components. |
Request measured thickness, photographs when practical, a written estimate, and confirmation of any safety-related defects. |
Urgent |
| Engine warning diagnosis |
Warning light, rough idle, reduced power, stalling, increased fuel use, or unusual exhaust smoke. |
Warning-light status, driving conditions, recent repairs, fuel or battery work, and any stored diagnostic information. |
Perform a documented diagnostic process rather than replacing parts based only on the warning code. |
Ask whether the diagnostic fee is separate, what tests support the recommendation, and whether approval is required before extra work. |
High |
| Battery and starting system |
Slow cranking, clicking, intermittent starting, dim lights, or repeated jump-starts. |
Starting history, battery age if known, recent periods of vehicle inactivity, and electrical accessories left connected. |
Test battery condition, charging voltage, starter operation, cable connections, and parasitic draw when indicated. |
Require test results instead of approving a battery replacement without checking the charging system. |
High |
| Tire, wheel, and alignment service |
Uneven wear, steering pull, vibration, low pressure, sidewall damage, or a recent impact with a pothole. |
Tire-pressure history, vibration speed range, impact details, rotation history, and visible damage. |
Check tread depth, inflation, sidewalls, wheel balance, suspension components, and alignment angles as required. |
Ask for tread-depth readings, alignment measurements before and after service, and an explanation of any recommended tire replacement. |
High |
| Cooling system inspection |
Overheating, coolant loss, a temperature warning, a sweet smell, or visible leakage. |
Temperature-gauge behavior, leak location, coolant level changes, warning-light history, and whether the vehicle was driven while hot. |
Inspect hoses, radiator, reservoir, water pump area, thermostat operation, cooling fans, and pressure-test the system when appropriate. |
Confirm the cause of coolant loss and ask whether the engine requires additional testing for overheating damage. |
Urgent |
| Routine maintenance |
Scheduled mileage or time interval, service reminder, or an upcoming long-distance trip. |
Current mileage, maintenance records, driving pattern, fluid history, and the vehicle manufacturer’s service schedule. |
Complete only the applicable scheduled items, such as fluid replacement, filter inspection, lubrication, and condition checks. |
Compare the written proposal with the service schedule and separate required maintenance from optional recommendations. |
Planned |
| Suspension and steering |
Clunking, excessive bouncing, unstable handling, uneven tire wear, or steering looseness. |
Road-surface conditions that produce the noise, steering feel, recent impacts, and changes in handling. |
Inspect shocks or struts, control arms, bushings, ball joints, tie rods, wheel bearings, and steering components. |
Ask which component has measurable play or damage and whether a post-repair alignment is necessary. |
High |
| Air-conditioning and heating |
Weak airflow, insufficient cooling or heating, unusual odors, fogging, or unusual compressor noise. |
Temperature setting, airflow level, whether the problem is intermittent, and any recent climate-control work. |
Check cabin filter, blower operation, vents, refrigerant circuit, leaks, compressor operation, and heater controls as applicable. |
Ensure leak testing and system diagnosis are completed before authorizing refrigerant-related work. |
Normal |
| Pre-purchase inspection |
A used vehicle is being considered before purchase or a major financial commitment. |
Vehicle identification details, current mileage, seller contact arrangements, and the intended inspection deadline. |
Inspect safety systems, fluids, leaks, tires, brakes, suspension, body condition, diagnostic data, and signs of previous damage. |
Confirm that the report is independent, written, condition-based, and includes urgent repairs and estimated future maintenance. |
Planned |
| Estimate and warranty requirements |
The repair may involve multiple parts, significant labor, or an uncertain diagnosis. |
Budget limits, required completion date, preferred communication method, and whether old parts should be retained. |
Obtain a written estimate listing labor, parts, taxes or fees, diagnostic charges, expected completion time, and possible additional work. |
Verify parts coverage, labor warranty duration, exclusions, approval limits, payment terms, and the process for resolving a concern. |
Required |