Ford Focus Owners Manual: Bulb specification chart

Changing a bulb

WARNINGS: Switch the lights and the ignition off. Let the bulb cool down before removing it. We recommend that you ask your dealer to change the bulbs if your vehicle is fitted with Xenon ...

Windows and mirrors

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More about Ford Focus:

Ford Focus Reversing Lamp Switch - Removal and Installation
  Item Part Number Description 1 — Reversing lamp switch electrical connector (part of 13A690) 2 15520 Reversing lamp switch Removal and Installation Remove the battery tray. For additional information, refer to Section  ...