when i go for long drives and then hit city traffic the temp jumps up.
i think the thermos are not hitting full speed as they should, as when i hit the a/c and the thermo's kick in the temp drops.

whats the prob, relay nackered temp sensor??
i'm sorta lost at the moment as the thermo's work great normally and kick into max when a/c is on, but when they should kick into max in hot wheather stuck in traffic they don't.

right now i'm drivin around with no bonnet seals to keep temps down.
cheers

Run the ECU diagnostic you can turn the thermos on and off via the gear selector to test their operation