Based on the above and the age I'd be looking for a more modern replacement.
They sit in hot and cold windscreens so don't last forever.
It's true that dash cams don't tend to last long compared to other products. They are more or less disposable items that last a few years at best, even if they happen to cost up to several hundred dollars. Somehow the dash cam industry has taught customers to become enured to this fact.
I have been saying this for a long time, repeatedly, but there is basically no reason why dash cameras can't be built to endure extremes of heat and cold without altering what they cost much or at all.
All that has to happen is that dash cams need to be built to the standards of common CCTV cameras which are built with "essentially" the same DSPs, sensors, lenses and other components as dash cams. Outdoor CCTV cameras run 24/7 in all kinds of extreme temperatures and weather conditions. They are also usually waterproof and vandal resistant which means they have no ventilation. Many high quality CCTV cameras happen to be in the same price range as dash cams. The CCTV cams on my home and business often sit baking in direct hot sunshine all day during the summer or are subjected to extreme cold temperatures, such as two days ago when it went down to - 18º Fahrenheit (-27.7778 °Celcius) where I live and they didn't skip a beat. Several have been running 24/7 for years. The oldest one was installed in 2009.
The difference between dash cams and CCTV cams is that CCTV cams are built to shed heat with the use of large cast aluminum heat sinks and the components are isolated inside of a very rigid chassis which can endure expansion and contraction as well as helping dissipate heat. The housings of CCTV cameras are often made from cast aluminum with cooling fins and designed to shed heat. Dash cams could be built to similar standards but the industry needs a paradigm shift. As it is, dash cams are more or less built to the standards of cheap consumer gadgets similar to a GameBoy, which is to say a circuit board and a few other components screwed into a small plastic housing.
Maybe if dash cams were built this way they wouldn't be quite as durable as CCTV cams because automotive environments and requirements are different as well as involving shocks and vibrations but there is no reason they can't be made much more durable than they currently are.
Edit: BTW,
@viofo is the one dash cam manufacturer I am aware of to come closest to this concept with the use of heavy cast aluminum heat sinks in some of their cameras.
