No air in the system, checked fluid level, heater works great, the fan just doesn't come on... changed the sensor and verified past numbers from the disco mpi 2.0 workshop manual.

I was driving into work, luckily there was enough traffic to jump out and pull the plug so it would turn on. I could see the temp rising past center on the dial.

Well it was finally warm enough to test if the replaced switch was the original problem....no it wasn't....luckily you can unplug the switch and the radiator fan comes on, but I don't want that to be the solution.

Mate you may have saved the day! Thank you for the assistance. I will print this beauty off tomorrow...now to follow the wiring and see what isn't working. The suspect would be X126 since X114 is what is sending the temperature to the gauge.

Brilliant! Thank you for the info, what is the name of the book if you don't mind me asking? I may have to pick up a copy!

Sounds good, I am on an Italian FB group just for 2.0 Mpi Defenders, but no responses yet. I suspected it may be a signal from the ECU and it does look like there are 2 temp sensors, but without many electrical diagrams out there for this model it is difficult to try and troubleshoot. These...

Hello gents, I have a 1996 Defender 90 2.0 mpi, I have done a bit of troubleshooting and am looking for some insight. My radiator fan does not kick on and I noticed I was overheating in traffic this weekend. I have only had the old girl for 6 months so I can't even remember the fan coming on...

Hello, My name is Brad, I have had a Defender 90 now for around 6 months it is an EX-Caribineri Defender 90 2.0 MPI. I've been loving every moment of having it and I look forward to many more years with her! I am having a bit of an issue with the radiator fan not coming on though.... I have...