How do you replace the headlight bulb located on a Rover 216 SLI N Reg?

Working inside the engine compartment unclip the relevantcircular plastic cover and remove it from the rear of the headlamp unit. Unplug the wiring connector then unhook the bulb retaining clip and pivot it away from the rear of the lamp. Withdraw the bulb from the headlight unit. When refitting a new bulb take care not to touch the bulb glass with bare fingers as it can harm the bulb, the rest is just a reverse of the above.