I bought a Vauxhall Senator heater switch panel on E-bay, and the switches that fit the Elan have the following GM part numbers:
Dual seat heater switch (2 yellow indicator lights)- 90213296
Heated rear window switch (1 yellow indicator light)- 90213287
Fog lamp switch (1 green indicator light) - 90213289
Rear fog lamp switch (1 yellow indicator light) - 90213292
Hazard warning switch - no GM numbers on the switch
Please note that the switch "paddles" are a bit shorter than ours, and that the symbols are in white rather than red.
Don
