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close04 2 hours ago

The article and comment aren't debating whether the fuse plays an essential role. There's no reason to make the process of fixing the issue after a minor incident expensive, extremely convoluted, and very prone to error.

Making it a very complicated and expensive fix isn't what's saving your rescuer or mechanic from getting electrocuted while working around your car.

entrox 2 hours ago | parent | next [-]

> There's no reason to make the process of fixing the issue after a minor incident expensive, extremely convoluted, and very prone to error.

Yes there is. Either nobody is engineering towards that aspect or it is a conscious decision, deliberating between two different buckets: bill-of-material cost per unit and estimated impact on your warranty & goodwill budget. Whatever is deemed to be cheaper will win.

Source: I work at an automotive OEM and one of my first projects almost two decades ago was how to anchor after-sales requirements into the engineering process. For example, we did things like introducing special geometry into the CAD models representing the space that needs to be left free so a mechanic can fit his hands with a tool inside. These would then be considered in the packaging process. If you consider these are two completely different organizations, it becomes a very tricky problem to solve.

actionfromafar 2 hours ago | parent [-]

It's like the manufacturer discovering to their complete surprise they are building a car. :-D

gmueckl 2 hours ago | parent | prev [-]

You seem to be ignoring the fact that the battery pack status after a crash is essentially unknown. It should go through a thorough and competently conducted safety inspection or it may kill someone in the future. Of course, this doesn't excuse extra red tape tacked into the procedure, but the core idea of an inspection is just unavoidable.

close04 an hour ago | parent [-]

> Of course, this doesn't excuse extra red tape tacked into the procedure

That's exactly it. I understand the importance of safety but reading the list of complaints I just cannot believe that safety is the key driver for the design decisions.

> ISTA’s official iBMUCP replacement procedure is so risky that if you miss one single step — poorly explained within ISTA — the system triggers ANTITHEFT LOCK.

> Meaning: even in an authorised service centre, system can accidentally delete the configuration and end up needing not only a new iBMUCP, but also all new battery modules.

> BMW refuses to provide training access for ISTA usage

Everything about this screams greed driven over-engineering. Since when are error prone processes and lack of access to information better for safety?

We live in a world where everyone justifies taking user hostile actions with some variation of "safety". Software and hardware are locked down, backdoored, need manufacturer approval to operate even when original parts are used, etc.