If you are not boiling over and the LED is not flashing you aren't overheating. I don't currently have a Mk2 Owners Manual, but if memory serves, it even states that it is normal for it to run through the range of the gauge and up to the 3/4 mark under some conditions when everything is working properly. I know the Vanagon owner's manual states that and the gauge, sensor, and engine are interchangeable. In colder weather, my '86 Jetta wouldn't even start opening the thermostat until the gauge was reading above the LED.
The amount of time that the K24 turbo takes to spool vs. the turbo on the 97 TDI has nothing to do with the electronics of the TDI. The K24 is huge compared to any of the later turbos. The Mk3 TDI turbos are wastegated and the electronics only have the ability to reduce boost, not make it happen sooner. The Mk4 TDIs had the VNT turbo which was electronically controlled and so the electronics were a factor with those.
Topic: AAZ head and MF block questions (Read 10560 times)
