I assume from what you have posted, and the format in which it is posted that you are NOT using INPA a lot.
NOTHING wrong with that, I just want to suggest a different approach:
0) Open Paint (Windows 10 accessory Photo Editor) or Editor of choice;
1) Select "Functional Jobs" in the Right ListBox at the screen after selecting E90; press Enter; Menu should appear;
2) At the Functional Jobs Menu, select F2, Identification; that screen should list ALL ~ 20 modules in your vehicle;
3) After the "Identification" screen has appeared, press Shft+PrtSc to save that screen as an image file in working memory;
4) Alt+Tab to navigate to Paint; Paste (Ctrl+V) the screen to Paint & SaveAs a jpg file in folder of your choice for future reference and attachment to post here.
5) Do the same for Functional Jobs > F4, Fault Memory (Fehlerspeicher), which lists Fault Codes saved in ALL Modules: PrintScreen, copy to Paint, SaveAs jpg file, and attach it here along with F2, Identification. We can then walk you through how to connect to each module which has a fault code, and get MORE information on that code than Functional Jobs gives.
MAKE SURE: you provide your current mileage, and estimate of mileage when CA issue began, as perhaps the MOST important Freeze Frame Data point is the mileage/km at which the Fault Code was saved in module memory.
Examine the Functional Jobs > F2, Identification screen carefully and note that the modules are listed in numerical order of their ADR -- the first column; each module has an abbreviated name like DME for Digital Motor Electronics (or German translation); FOURTH column is key: SGBD is the "CodeName" for the module, and it includes the "variant" of that module, such as "87" following JBBF (Junction Box Electronic Module). The same code number may have a different "Definition" in different modules, so ALWAYS make sure you know your full Module CodeName (SGBD).
The codes you posted do NOT have anything to do directly with a CA fault/issue. Possible exception: K-CAN wire fault (CID/E5C4). General description (which may change slightly depending upon module variant as described above) (1) possible driver's outside mirror communication issue; (2) Communication issue between KOMBI & CAS; (3) Fuel Gauge in KOMBI may not be reading correctly due to Fuel Level Sender (L&R) issues; (4) Right-front reading light issue?
Remember, these may be old codes where the fault is NOT currently present, so we need to see the Freeze Frame Data & Details. When you supply the ScreenPrints of Functional Jobs F2 & F4, please also indicate what performance faults, symptoms or issues you have (such as Fuel gauge or reading light) and if there was any problem with F19 (test it visually AND electrically with multimeter).
INPA is a powerful tool, but it takes time to get familiar with it. If you are going to be able to diagnose your own vehicle & save $$$$, it's WORTH it, so hang in there.
George