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Are BMW cars less reliable, expensive, not ready for zonal assembly...?

Major car components like doors or front axles are assembled in parallel to miscellaneous parts on the main body, and all .join() at the final assembly. This had been the case for past 30-50 years, possibly more, in case this needs to be said.

[cyberax]

They can be even more reliable. And they definitely _are_ expensive.

> Major car components like doors or front axles are assembled in parallel

And doors (and tailgates) are the biggest body component that is _sometimes_ assembled independently. Then workers manually route cables through the body.

Pre-routing cables inside panels that can then just be welded together can save a lot of labor.

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> And doors (and tailgates) are the biggest body component that is _sometimes_ assembled independently.

Sometimes? What and when on Earth is this about? Pre-WWII?

They wash and paint and dry the whole body at once _for paint consistency_, then take off doors and trunk lids and bumpers and send them into separate assembly lines. Those major parts flow parallel "threads" in sync and converge near the end, where connectors are plugged in and those major parts are bolted back in and plastic trims are pushed in to tuck everything under. Cars were basically always done that way for a long time everywhere. I think even lots of hand made supercars are like that, only except tact times are magnitudes longer.

> Then workers manually route cables through the body.

> Pre-routing cables inside panels that can then just be welded together can save a lot of labor.

What do these even mean? Are you hallucinating workers crimping cables in-situ? They just clip on harnesses and plug in couplers in "the line". Never seen under a door trim?

It sounds like you're either extremely ill-informed, or worse yet, potentially, intentionally misinformed about car manufacturing that what you see is advanced manufacturing. I think you should... look more closely into what "legacy auto" have been doing forever.

[cyberax]

> What do these even mean? Are you hallucinating workers crimping cables in-situ? They just clip on harnesses and plug in couplers in "the line". Never seen under a door trim?

Workers still need to pull the wiring bundles through the car body and clip them, after the body is welded together. The connectors are impractically bulky to put several of them along the cable routes.

Pre-assembled panels can have cable runs attached to them during the individual panel assembly.