My coolant light came on, had a check and was low on coolant. Found some pink staining on top of the gearbox, looks light the leak is coming from above the gearbox. Any idea where to start looking? Wasn't able to have a proper look as I've hurt my shoulder :(

Could be the coolant temp sender c clip is loose or the housing it sits in which is prone to cracking. (for location just follow the top hose from rad).