Why? Because OEM does not offer a stat higher than 80 C and I want the engine to run hotter, especially for winter time.

FI, why should I replace the temp sender? I have no reason to suspect it's bad. Temp senders are very simple and rugged devices and I have never seen one go bad. I don't like to replace parts iindiscriminately.

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85 300D turbo pristine w 157k when purchased 167,870 July 2025
83 300 D turbo 297K runs great. SOLD!
83 240D 4 spd manual- parted out then junked