Hello *, I was very busy on the weekend and changed the clutch at my 323 BG (year 1991, 160000KM). However, when the gearbox was being expanded, something stupid happened to me. When I lowered the engine a bit and then wanted to take the gearbox out it made “Plop” and the tacho shaft was in “two parts”. I forgot to unscrew it off :-(hmpf. Well that happened. When I looked at the shaft more closely I noticed that from the gearbox a 20c I don’t know how to describe it. But it looks like such a small fuel-ilter. Is it possible that the shaft is actually such a plug-in system? I put it all together again when I had the gearbox back in it. However, the tach does not rumble a piece 🙁 Does anyone know if this is really plugged in. Or why is this round dumpling where I pulled the shaft out? Oh yes. I have a 1.6 l motor and the consumption c is about 10 – 11 liters in the city. And my driving is actually quite economical. Can there possibly be something wrong? Thank you for your help!