Flaky DMM on DC Voltage

[Citroënbender]

My meter is a good 15 years old, it cost me $80 back then. Auto-ranging with extras of temperature, capacitance, inductance, transistor testing. I’ve barely used the last two aspects but otherwise it gets a flogging. The temperature (with k-type probe) is great for thermostat checking on the bench.

Lately it’s become increasingly unreliable when measuring DC voltage. It has long had the odd vague-out on resistance or continuity but usually twisting the dial a couple of times and/or pressing Reset, fixes this. DC volts, though, unless it’s a strong source it is no longer giving a sane reading.

Technology price-points have shifted, I could replace it for $70 with a meter that does everything the same except inductance and transistor checking. Before I do that - has anyone experienced similar malfunction and resolved with a repair?