As part of the ongoing prep for next year's big trip I've been trying to decide on the best way to extend the range of the 90. I've already fitted a secondary tank to the main fuel tank but given the stupid money that people are asking for additional tanks to get relatively small increases in capacity I decide the simplest way is to fit a standard 90 fuel tank under the driver's seat.
The only real problem with that is that, being a TD5, there is a box under the driver's seat that contains most of the vehicle's electrics with the main fuse box, engine ECU and auto gearbox ECU.
This weekend I started the job, it's taken longer than expected (doesn't it always) but I've made some real progress and it might be useful for anyone else thinking of moving the ECU for waterproofing.