17 does Passat pump need computer matching?

Need. 17 Passat water exchange pump cleans the pump shaft. If necessary, it can be lightly polished with sandpaper, and the pump shaft and static ring groove can be wiped clean with a clean cloth. Be careful not to have sundries and small particles. It's a mechanical water pump, which needs computer matching. The electronic water pump is connected to the warm air pipe and does not need to be matched. Turn on the warm air and adjust it according to the flow.