What to report
- Coolant needs repeated additions, or a sweet odor appears after driving.
- A puddle forms, the heater behaves differently, or temperature rises as fluid is lost.
Possible leak locations
Hoses, radiator seams, pump seals, housings, reservoirs, and other connections can leak. Internal engine faults may consume coolant without an obvious puddle. Some leaks appear only hot or under pressure, while condensation from the A/C is normally clear water and is not automatically a coolant leak.
How investigation proceeds
The fluid and level concern are verified, then accessible components and connections are inspected. A suitable pressure or other diagnostic test may help reproduce a hidden leak. Findings determine whether a hose, component, sealing joint, or internal engine issue needs further work. After repair, coolant fill, air removal, and follow-up checks are important.
When to stop driving
Overheating or rapid coolant loss calls for safe shutdown and professional assistance. Never open a hot cooling system. Tell D&S what fluid has been added and whether any sealant was used so the inspection can account for contamination or a temporarily hidden leak.