Hello, I’m thinking about having the control chain replaced in a preventative way. My 9ooo CS (MJ 1992, 143 kw, switch) now has 188.00 km on the clock. The seller could not say anything about the history. Was with the price but also ok… Oil change has been made anyway in the summer. The car is very well maintained and has no rust (garage car?). So I can hope that oil change has been made regularly. (Turbo pulls wonderful, the initial problem with TCS was quickly fixed…) I w It’s hard to describe: but how does the engine sound if the control chain wants to be changed? I would describe the somewhat noticeable noise in idle mode as slightly nailing (after the cold start there are first nice speed fluctuations to the top, which then settle down to just under 1oo u/min). After reading this thread, I still didn’t realize what it would cost: 3oo Euro would be ok, 2.5oo definitely not. In Berlin I would use this as a tool. either to Pink. or to Bischoff. If someone else has a tip here, like per pn. And another small question: since the temperature indicator was never middle, I replaced the thermostat with a new one. The problem remains: even after a longer drive, the pointer remains stuck in the lower third and goes only briefly towards the middle. However, the consumption seems to be ok 12.3 liters according to BC after partly fast highway and short city traffic in winter. Many, thank you already! R.