Hi, the tips in the existing threads didn’t help and the users who were on the way there also don’t seem to be active anymore, therefore a new thread. Until recently there was no sign of a failure. Car was parked and started for 2 weeks. Then Tacho failure. Specifically, the speed is no longer displayed and the KM display (roadway) somehow doesn’t notice that the car is being driven. Otherwise, no lamps light up. Tacho is digital, at least the KM-display as well as the onboard computer that sits below the speedometer to the speed indicator. I checked once fuse, pulled off, ABS LIGHTS. A sensor plugged off at the VA times, ABS lamp lights up. The plug from the ABS control unit on the passenger side in the engine compartment released from below times…ABS lamp lights up, no oxidized contacts visible. On the tacho are at the rear 2 plugs, one sits behind the rev indicator and is 2 rows (or were 3), the other is one row I’m sitting behind the display of the on-board computer or speed indicator. On the plug behind the tachometer is actually a grey wire on Pin23. I just have to find all the gray wires that were in the connector of the ABS ECU practically attached to Pin23 with an extra wire, of course individually. But it does not matter. I have this information from another thread, which has solved the PRoblem. Now the question is whether someone can send me a schematic. that the speedometer has a defect? In the appendix you can see the ABS plug that is just connected to the ABS control unit. For tips and the switch I would be very grateful! Greetings