What are the symptoms of a leak in the exhaust manifold gasket on Citroën engines? Is it an expensive repair?

THE exhaust manifold gasket It acts as a vital seal between the engine and the exhaust system. In Citroën engines, such as the popular 1.6 16V, this gasket can deteriorate due to high temperatures and the constant heating and cooling cycle of the engine, resulting in a gas leak.

The most obvious symptom is a loud, metallic, pulsating noise (“putt-putt”) Coming from the engine area, the noise becomes more audible when the car is cold or accelerating. In addition to the noise, the driver may notice a loud… smell of exhaust fumes (burnt gas) that enters the cabin, especially when the vehicle is stationary with the air conditioning on.

The cost of repair is, in general, accessibleThe gasket itself is an inexpensive part. However, the labor cost can vary, as accessing the area and partially removing the exhaust manifold requires the mechanic’s time. Correcting this leak is crucial to ensure a proper seal, prevent noise, and maintain the correct functioning of the Lambda sensors.