Where is pre heat relay in Peugeot 307 1.4hdi 2004?
The pre-heat relay in a Peugeot 307 1.4HDI 2004 is located in the engine compartment, near the battery. It is a small, black relay with a red wire attached to it. The relay is responsible for providing power to the glow plugs, which help to start the engine in cold weather. If the pre-heat relay is faulty, the engine may be difficult to start or may not start at all in cold weather.