Where is pre heat relayin peugeot 206 1.4 hdi 2005?

The pre heat relay in the Peugeot 206 1.4 HDi 2005 is located in the engine compartment, specifically on the positive battery terminal. It is a small, black relay with a green or yellow connector. The relay is responsible for supplying power to the glow plugs, which help to heat the engine during cold starts. If the relay is faulty, the glow plugs will not receive power and the engine will be difficult to start in cold weather.