The 101 uses dash instruments that are variations of Series 3 instruments. The main difference is where Series 3 has a multi-display instrument containing fuel, temp and a blank with a red light, the 101 has fuel, temp and oil temp.

The water temp and oil temp gauges of the 101 are bulb style gauges rather than electric gauges. The 101 stuff is hard and expensive to get and the bulb tube often gets damaged when you pull the dash then the gauge does not work - I have two new gauges but the bulb tubes are too short on the water temp gauge as I suspect I was actually send gauges for a lightweight rather than a 101.

Ideally I would like to change these two gauges to an electric version. I assume the standard series 3 water temp gauge is an electric gauge but does anyone know where I might find an electric oil temp gauge? - Both to fit in a standard 101/series 3 multi gauge.