It’s pretty clear then that you want to hit a bump as soon as possible in your daily drive.

I haven’t had your specific model, but am 90% sure it still had a mechanical speedometer cable connected to the transmission. If the cable is good and connected tightly, next check is the speedo gear at the tranny; if it’s good, then your speedo is bad.

Your door locks are connected to and operated by the pneumatic PSE pump. If the others work, there’s probably a vacuum leak either at the lock itself or in the connecting hose. Take off the door panel to inspect.

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Prost!