* Try [[https://www.amazon.com/gp/product/B07T9TLSVZ/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&th=1|these]] instead of crush washers
    * banjo bolt attached to oil filter housing takes 18mm ID. 24.5mm OD (M18)
  * [[https://nemigaparts.com/cat_spares/epc/mercedes/1/123/|every part]]