Rover

You just need a new bulb and a flat head screw driver to release a spring latch from the bulb. First pop the bonnet and behind the headlamp you should see a black circular cover clipped on. Remove that cover and you will see 3 wires going into a small black connector. Pull out this connector, the bulb is held into place by a spring type lock. Push the top of that spring from the latch it is held under and it should come away. Take out the old bulb and insert the new bulb, making sure that the glass is not touched; fingerprints or dirt can cause 'hotspots' leading to premature failure. Replace the spring latch and the black connector. If in doubt copy the other side.

On the Rover 75 V6 engine, the crankshaft position sensor is typically fitted near the crankshaft pulley at the front of the engine. It is positioned to detect the position and rotational speed of the crankshaft, which is crucial for engine management. Accessing the sensor may require removing components such as the engine cover or other surrounding parts. Always refer to the vehicle's service manual for precise location and replacement instructions.

Engine code K 1.8 Grade 10W/40 Quantity including filter 4.5 Ltr

Its in between the heads, or the V.

You need to remove all the black plastic manifold that's above the top of the engine , and then the metal part of the manifold that's at th front, this gives you access to the thermostat, which comes complete with the housing. if your gonna replace it i suggest you get the two pipes that connext to it as well, as they get very brittle and break on removal.

Not a nice job at all