We've had our 2008 Koleos 2.0dCi for a few years now, no problems. Soon before it's service, a "Check Parking Brake" error appeared although it works perfectly. Then intermittently "Check Fuel Injection" then sometimes "Check Speed Limiter". Everything works fine, and when restarted, the only message that always appears is Check parking Brake.
Anyway, took it in for it's service and asked them to check. They said it needed a new battery and brake callipers and they cleared the errors. Within a day they reappeared, took it back, and reset. Same thing twice more. They now want to replace the brake switch/sensor which will cost about $800, and if it doesn't work, it's at my risk. They seem to be fixing by trial & error at my cost.
Any ideas on what to try, the Renault Dealer has given up and told me to take it to another Dealer, but more $$$ to get it checked out. Everything works and runs fine, just the intermittent error lights keep appearing. They say Clip reports no errors?
Please, any ideas would really be appreciated, and now Renault has thrown in the towel...