Peugeot 108 Coolant Leak

I had a similar problem with my 108. The coolant light came on sometimes. I checked around the radiator hoses and water pump for leaks but didn't see anything. Did you check the radiator cap? A bad cap can cause pressure loss, and coolant can escape as vapor.

Thanks. I haven't checked the radiator cap yet. What other symptoms did you have, and did the engine overheat?

Besides the low coolant warning, I didn't see any other issues like engine overheating, weird noises, or visible leaks. Since the problem is still there after adding coolant, and thinking about possible air pockets or a head gasket issue, I'd suggest a visit to a workshop for a diagnosis. They can do a pressure test to find the cause.

Understood. I appreciate the advice. The workshop found and fixed a small coolant leak for 52€. They refilled and pressure tested the system, and the problem is fixed.