RE: SRS light blinking problem
Probably has to be reset at the dealer. Before you do that, check to make sure that the connectors to the crash sensors are properly seated and not corroded. Trace the yellow cables, as this is the SRS system. Two sensors are on the bumper.
Rovers don't do well with any pressurized water on the engine. Hopefully, you didn't find a defect in any of the SRS wiring or connections.
Did you have the battery unplugged for a period of time? If so, this could also explain the SRS blinking.
I own a 95 Disco... And a complete toolkit to fix it