There is obviously some confusion here. First, the filter housing used by Hyundai is made by Mahle. Many other consumer and commercial vehicles use oil filter systems made by Mahle, including MB, Volvo, and others. These are not MB, Volvo, or Hyundai designs, they are designs supplied by Mahle.
There are other manufacturers who offer similar designs such as Mann, which is used on BMW and other cars.
The procedure for changing the filter is quite simple:
- Unscrew the plastic filter housing.
- Remove the old cartridge.
- Replace the O-rings with fresh ones supplied with the cartridge (although the O-rings probably last a long time and probably don't need to be replaced each time).
- Put the new cartridge in the housing (doesn't matter which end goes first, since the cartridge is symmetrical).
- Screw the plastic housing back on.
As far as a systematic problem with the Mahle oil filter housing on Hyundai's, I have been reading this forum for more than 6 years and don't recall many problems being reported. The problem in this thread is the first I heard about a dealer (or anyone else) messing up the O-rings. You reference to dozens of posts about problems with cartridges puzzle me, since I don't recall any problems (other than people who try and buy after-market filters instead of getting them from a dealer, and they sometimes get the wrong one or a cheap one that is not made correctly).
Cartridge filters like on the Genesis are not horse and buggy technology, it is the state of the art and the future of oil filters.
You also seem to confused about crush washers. They are simply a (relatively) soft-metal washer used on the drain plug, and have used on the vast majority of cars for a very long time (although not everyone follows directions and actually uses them).