The saga with the El auto continues. I cleaned the wire plugs on the passenger side of the trans today and took it for a drive. Drove great using all 4 gears, then just before I got it home it went into limp mode again. When I poped the bonnet to check something non-related I noticed the coolant level was very low, so I reckon the auto is overheating. Could this be because the auto just needs a service or is it more like something worse?

get it serviced,they will sort it,ask them to check and wipe error codes.