Where is electronic control module or unit in a 2003 mini cooper?

The Electronic Control Module (ECM), also known as the Engine Control Unit (ECU) in a 2003 Mini Cooper, is typically located under the hood, near the firewall, often attached to the inner fender well. It's usually a fairly large, rectangular box, possibly covered by a heat shield. However, the exact location can vary slightly depending on the engine type (1.6L or otherwise).

Because of the precise location's variability, it's best to:

* Consult your Mini Cooper's repair manual: This is the most reliable source for the precise location.

* Use a wiring diagram: Tracing major wiring harnesses can often lead you to the ECU.

* Search online forums: Specific Mini Cooper forums (like the North American Mini Cooper forum) will likely have pictures and discussions about its location for your specific model and engine.

Caution: The area around the ECU is often hot and can contain exposed wires. Be careful when searching for it.