help needed in deciphering Carly report

[semperfi1776]

I have a E92 M3, production date Sept 2008, no tunes or mods.
2 weeks ago, I encountered

1. increased emissions + serivce engine soon light
2. EDC warning
3. increased battery discharge. Car loses electric power completely if not connected to a battery tender(even after replacing battery).

I have replaced the battery. While I was doing this, I noticed that there was water on the bottom of the battery compartment. Any idea on where the leak could be or how to determine where it might be coming from?

After disconnecting the EDC module the car no longer has the "increased battery discharge" warning. Car no longer loses power without battery tender connected. Right now I am still getting "increased emissions" and serivce engine soon light. Below is the Carly report. I only included the sections with fault codes. I am having trouble figuring out what these codes mean and which of these codes could contribute to "increased emissions" warning. Finally, suggestions on how to address the issues. Thanks for any help in advance.


Base: E92
Build-Year: 2009
Faults: 20
ECUs: 23
Filter: just found
Model: 3 Coupe (E92) M3 alle/all (MotorID=89, Parameter=45)
Battery: 14.1V
ADDITIONAL OBD: ONNormal communication
Normal connection
normal
B 2
Date: 2017-11-23 15:46:29
Carly Adapter
Version: 26
Device: >Google< >sailfish< >Pixel<
Motor Control:
Engine / Motor
Exchanger code without adaptation
Code: 002791
Speed-registration
Code: 002B13
Message (maximum demand DSC)
Code: 00CD98
Message (status DSC)
Code: 00CDA5
Message (wheel speeds)
Code: 00CDBB
Message (speed, 1A0)
Code: 00CD9C
SMG CAN Message 3
Code: 00CDC3
Message (Audio Control on the phone)
Code: 00CDBC
Message (air conditioning demand)
Code: 00CDA9
Message (outdoor temperature)
Code: 00CD94
Message (mileage / cover, 330)
Code: 00CD9F
Sg Internal error
Code: 0027A0
:Message failed / Nachricht (OBD-Sensor Diagnosestatus, 5E0)
Code: 00CDB7
ABS / DSC / Brake:
Dynamische Stabilitaets Kontrolle / DSC
ECU OK, no Fault Code
Airbag:
Advanced Crash and Safety Management (ACSM)
ECU OK, no Fault Code
Airbag B-pillar left/ B-Saeule links
ECU not present/no response from ECU
Airbag B-pillar right/ B-Saeule rechts
ECU not present/no response from ECU
Transmission Control:
Transmission / Getriebe GS 19
:K-Can Bus off / wheel pressure
Code: 00CF13
:K-Can Bus off / Outside temperature relative time
Code: 00CF14
:K-Can Bus off / Selector lever operation
Code: 00CF15
Transmission / Getriebesteuerung
ECU not present/no response from ECU
Gear switch / Gangschalter
sorry, unknown fault
Code: 00A840
Instrument cluster:
Instrument cluster / Kombiinstrument
Shutdown
Code: 00A559
:CAN ID failure / damping programm ID fault
Code: 00A3B8
Central info display / Zentrales Display
ECU OK, no Fault Code

[Solo_M_Tech]

Water is coming in around the trunk seal and tail light seals. ...

That black cap were the cable goes through the floor, has a 13mm nut on it, and is very prone to corroding. Remove the cable and clean the terminal, and post. Replace if necessary.

Then clear all codes and see what comes back. You'd be surprised what a little corrosion will cause on these cars.

[Shaan]

Originally Posted by ham_sammich

Water is coming in around the trunk seal and tail light seals. ...

That black cap were the cable goes through the floor, has a 13mm nut on it, and is very prone to corroding. Remove the cable and clean the terminal, and post. Replace if necessary.

Then clear all codes and see what comes back. You'd be surprised what a little corrosion will cause on these cars.

anyone figure out a way to avoid this from happening ? maybe adding some extra sealant ? water got into my trunk on my first m3, would hate for it to happen again.

[semperfi1776]

thanks for the tips. I have an additional question. is there any info on how to test the EDC module to verify that it actually went bad? a link to a previous post on this topic would be helpful. thanks