Should speedometer be replaced on Mercedes 230 as mileometer and trip do not work?

If the speedometer on your Mercedes 230 is malfunctioning and both the mileometer and trip meter are also not working, it could indicate a failure of the speedometer itself or an issue with the vehicle's speed sensor. Before replacing the speedometer, it's advisable to diagnose the root cause, as it may involve electrical connections or a faulty sensor rather than the speedometer unit itself. If the diagnosis confirms that the speedometer is At Fault, replacement would be necessary. Consulting a qualified mechanic can help determine the best course of action.