Need water ingress help.

2013 e70 3.0 LHD

Heavy rain is resulting in electrical malfunctions. Sunroof drains are clear, in the rear and front both drain and don’t pool. no water in the rear bins by the fuse box. I pulled the headliner and the rear roof isn’t seeing any water although it had been.

engine bay drains in front of the firewall are clean and draining very quickly. They were a little a slow and I thought cleaning them out would solve the issue but alas no.

I’m not finding water ANYWHERE in the interior but still getting nailed with the errors. iDrive screen flickers, blinkers skip, hvac acts up.

Pulled the carpet by the FRM module and it’s all dry
Pulled the junction box down behind glove box and dry.
Is there anywhere else water can be entering?

Maybe behind the hvac controls??

I’m at my wits end… maybe someone here knows where to look.

Could water leaking into the engine bay cause this??

Thanks in advance

Readout from MHD:
DME active codes -
3396 - Engine switch-off time, signal: Missing.
3BCC - No message (heat flow/load torque climate, 0x1B5), receiver DME, transmitter IHKA.
3BCD - PT-CAN, message (status KOMBI control unit, 0x1B4) not up to date, receiver DME, transmitter KOMBI.
3BCE - No message (status KOMBI, 0x1B4), receiver DME, transmitter KOMBI.
3BF1 - No message (status of driver detection, 0x2F1), DME receiver, ACSM transmitter.
CD95 - No message (lamp condition, 0x21A), DME receiver, FRM transmitter.
CD9B - No message (time display/date, 0x2F8), DME receiver, dashboard transmitter.
CDBA - No message (status of pull sensors secured BN2000, 0x1E1), DME receiver, FRM transmitter.