Hello, I found and bought a SL on Friday after a long search. Now a question? The temperature should always be a little bit over 80°. The indicator only goes after approx. 50 to 60 km to exactly 80° and after approx. 100 km it goes a little bit over 80°. What I want to say the engine comes only after a very long time to its operating temperature. What is defective there? And can I repair it myself? Thanks in advance for your help. Many greetings from Straubing.