Unfortunately we do not accept new members for free, Now Registration cost 30€, if you are interesting Send Email to [email protected]

BMW i8 HV battery problems
02-06-2019, 12:18 PM, (This post was last modified: 02-06-2019, 12:19 PM by phydor.)
Post: #1
XZBMW  BMW i8 HV battery problems
Hi there guys, I have an i8 that suddenly started to develop HV energy system faults.After deleting all the errors in Ista+ i have the following ones
https://imgur.com/a/S5sJ7r4
I do't know what could cause this, though i did see some contactor stuck open in the faults before i deleted them.Attached those also
https://imgur.com/a/91hroKe
Anybody, ideas?
I searched for TSBs that could account for this error, i found one but i can't get much information about it.
TSB #B120917
Service Action : PROGRAM CONTROL UNITS.THE HV system is being shut off without a request from the driver.
Quote this message in a reply
02-06-2019, 12:47 PM,
Post: #2
RE: BMW i8 HV battery problems
DC-DC converter fault in EME.
No charge for 12V Bordnetz.
DC-DC converter can not change separate, only with EME.
Used EME is problem too, in EME have EWS.


Vanos
Press Thanks and Reputation, if my post helped you. under
Quote this message in a reply
[+] 1 user says Thank You to vanos for this post
02-06-2019, 13:23 PM,
Post: #3
RE: BMW i8 HV battery problems
Looks like you need an EME. I have never tried a used one but they arent too expensive

d
Quote this message in a reply
02-06-2019, 13:30 PM,
Post: #4
RE: BMW i8 HV battery problems
(02-06-2019, 13:23 PM)dfitz21 Wrote:  Looks like you need an EME. I have never tried a used one but they arent too expensive

d
Is this the one? From the attachment?


Attached Files Thumbnail(s)
   
Quote this message in a reply
02-06-2019, 14:49 PM,
Post: #5
RE: BMW i8 HV battery problems
No, this one

http://www.realoem.com/bmw/enUS/showpart...Id=12_1801

Last I checked they came down in price a bit also.

D
Reputation: +1 - phydor [+1]
Quote this message in a reply
[+] 1 user says Thank You to dfitz21 for this post
02-06-2019, 15:36 PM,
Post: #6
RE: BMW i8 HV battery problems
(02-06-2019, 14:49 PM)dfitz21 Wrote:  No, this one

http://www.realoem.com/bmw/enUS/showpart...Id=12_1801

Last I checked they came down in price a bit also.

D

What the f**k? They have superseeded this unit 9 times? It should be a free standard exchange.Obviously these units have problems.
Quote this message in a reply
03-06-2019, 06:19 AM,
Post: #7
RE: BMW i8 HV battery problems
Any sw update give new partnumber!
This is not a hw change.


Vanos
Press Thanks and Reputation, if my post helped you. under
Reputation: +1 - phydor [+1]
Quote this message in a reply
[+] 1 user says Thank You to vanos for this post
03-06-2019, 07:02 AM,
Post: #8
RE: BMW i8 HV battery problems
(03-06-2019, 06:19 AM)vanos Wrote:  Any sw update give new partnumber!
This is not a hw change.
Should I try to flash the EME to latest firmware update?
Could it make a difference?
Quote this message in a reply
03-06-2019, 16:11 PM,
Post: #9
RE: BMW i8 HV battery problems
Yes, but DC-DC Wandler is a HW Problem.

(03-06-2019, 07:02 AM)phydor Wrote:  
(03-06-2019, 06:19 AM)vanos Wrote:  Any sw update give new partnumber!
This is not a hw change.
Should I try to flash the EME to latest firmware update?
Could it make a difference?


Vanos
Press Thanks and Reputation, if my post helped you. under
Quote this message in a reply
[+] 1 user says Thank You to vanos for this post
03-06-2019, 17:24 PM, (This post was last modified: 03-06-2019, 17:24 PM by phydor.)
Post: #10
RE: BMW i8 HV battery problems
(02-06-2019, 12:47 PM)vanos Wrote:  DC-DC converter fault in EME.
No charge for 12V Bordnetz.
DC-DC converter can not change separate, only with EME.
Used EME is problem too, in EME have EWS.
I have found an used EME on ebay with 3200 $.The problem is the EWS, from what you are saying.Can I authorize it online on my car? Is it such thing at BMW? I've authorized ECUs just on Audi and Mercedes so far.
Quote this message in a reply


Possibly Related Threads…
Thread Author Replies Views Last Post
XZBMW ISTA 4.46.xx problems and possible solution Sedoy 76 7,397 27-03-2024, 20:02 PM
Last Post: Node
  Battery lead positive underfloor problem da.2022 10 208 24-03-2024, 09:38 AM
Last Post: pupu144
XZBMW G20- Higher capacity battery coding hallamnet 2 307 19-03-2024, 07:06 AM
Last Post: MasterGt
XZBMW F90 Li-Ion battery reset Hoborg 13 1,129 17-03-2024, 09:09 AM
Last Post: Hoborg
  F15 Hybrid failed battery pack? willisodhiambo 0 101 26-02-2024, 08:08 AM
Last Post: willisodhiambo
XZBMW CIC-MID fsc problems ayllon308 0 94 08-02-2024, 21:25 PM
Last Post: ayllon308
  F25 Cluster mileage lower after battery replacement Spirit5676 1 197 15-01-2024, 12:40 PM
Last Post: cipi gutuie
  523 F11 (2011) Code larger battery with E-Sysy Blondy 17 676 21-12-2023, 22:09 PM
Last Post: Stratofortress
XZBMW ENET Connection Problems mikkaav 4 428 11-12-2023, 20:27 PM
Last Post: Node
  BMW E87 2004 CAS2 ELV problems ravager 2 165 06-12-2023, 16:23 PM
Last Post: ravager

Forum Jump:


Users browsing this thread:
1 Guest(s)

Return to TopReturn to Content