Uber 911

Chaps, trying to determine an intermittent non start problem - Dash lights up, fans blow, however turn the ignition to crank the starter and nothing, not even a click. Leave its for 15 mins and it starts immediately.

FYI - I thought it was an imobiliser issue, so I had that removed by the manufacturer. Car now only has a remote fob to unlock/lock the doors, the cut for it is the fuel circuit only.

a) Will a faulty DME relay cause this?
b) Poor battery?
b) According to my diagram inside the fuse/relay box in the trunk there is a starter relay, R61. The slot is not used, so where is the relay?

its a 1994 C2 RHD.

thanks

Chris

Uber 911

Update

nut missing off the solenoid, so the yellow wire was hanging on. New clutch fitted in 07, seems they never put the nut back on!