MKH
Posts: 172
Joined: Fri Nov 02, 2018 5:48 am
Location: Dallas

Re: How many have had the drive train malfunction error?

Sat Feb 02, 2019 7:37 am

Wonder how many of these "drive-train malfunction" errors are equivalent to the Windows "blue-screen-of-death", caused by a software glitch code stumble that a re-boot/reset fixes?
Mark H.
2015 i3 Rex, Capparis White, Tera World, Technology & Driving Assistant, Parking Assistant, Harman Kardon Audio System, 20 inch wheels, EVoInnovate EVSE

Beadbabe50
Posts: 1
Joined: Mon Feb 11, 2019 9:35 am

Re: How many have had the drive train malfunction error?

Mon Feb 11, 2019 9:48 am

I just had my i3 towed, dead as a door nail until the guys tried to jump start it, but all the safeguards on the vehicle shut them out. So we are assuming it’s a battery thing. The lights flashed and clicked until it went totally dead and before this happened I had 50k on the car and used the REX 2 miles to get home. Shutting it off the motor still ran and I plugged in the charger. Today it had zero charge and was mostly dead. Unplugging it from the charger Nd closing the port door, that locked and would not open again. Couldn’t get it into neutral for towing Nd was forwArd facing in my garage, which then they had to drag it out on skates and onto a flatbed. Thankful I have triple AAA. but they tried for over an hour and a half to try anything to get it out of the garage. I will never front face in my garage again. I love this car , am hopeful, so will see what they say. It’s a 2015 Rex. And has almost every option you can get on it.

jadnashuanh
Posts: 4392
Joined: Thu May 22, 2014 2:07 pm
Location: Nashua, NH USA

Re: How many have had the drive train malfunction error?

Mon Feb 11, 2019 12:25 pm

If you try to charge the 12vdc battery without following proper procedures (that requires disconnecting the safety HV switch), you can damage things, maybe a lot.
Jim DeBruycker
2011 535i x-drive GT, 2014 i3 BEV

Star63
Posts: 8
Joined: Mon Sep 10, 2018 12:05 pm
Location: Finland

Re: How many have had the drive train malfunction error?

Wed Mar 06, 2019 12:40 pm

i3StormTrooper wrote:Picked up my car tonight drove about 25 miles without issue.

Per the work order:

Error code 886.

Moisture in the range extender electrical machine. Performed vehicle test. Found fault stord for isolation resistance. Followed the test plan. Test plan checked isolation resistance and found OK. test plan indicated problem caused by moisture in the range extender electrical machine. Performed drying procedure by removing temperature sensor 6mm and running the engine for 3 hours. Before engine run, discharged vehicle battery with electrical consumers. Perform drying procedure. Reinstall temperature sensor. Torque bolts to 5NM and TECH 3 verifed this. Cleared fault memory and drove the vehicle. No faults or indicators returned. Charged the vehicle battery to full capacity.


Does anyone know where the 6mm temperature sensor is located? I'd like to try that procedure to see if it helps...
2014 BMW i3 REX

si2t3m
Posts: 1
Joined: Fri Feb 22, 2019 7:12 am

Re: How many have had the drive train malfunction error?

Thu Mar 07, 2019 9:04 am

Just picked up my 'new to me' 2014 I3 Rex with 60k kms on it. Drove mainly on REX for a 900 trip back home and got the "Drivetrain malfunction". I do have BimmerLink and will check it later today and report back.

Regarding the dead 12V batt, I'm I over simplyfing it? I ordered and cigarette lighter plug with USB and voltage display. This should give me a clue?

alohart
Posts: 1571
Joined: Sat Nov 01, 2014 7:36 pm
Location: Honolulu, HI

Re: How many have had the drive train malfunction error?

Thu Mar 07, 2019 4:14 pm

si2t3m wrote:Regarding the dead 12V batt, I'm I over simplyfing it? I ordered and cigarette lighter plug with USB and voltage display. This should give me a clue?

I've been driving with a 12 V voltmeter in the auxiliary power port under the climate control system controls for over a year hoping that it will detect a failing 12 V battery. However, the i3's 12 V system behaves so differently from any I am familiar with that I'm not so confident that this voltmeter will detect weak 12 V battery.

Because of the low capacity of the 12 V battery, the power required to boot several controllers when the doors are unlocked or opened or the hatch or frunk opened pulls the 12 V system voltage down as low as 11.9 V before the DC-DC converter boots which then begins charging the 12 V battery raising the 12 V system voltage to ~14.3 V.

When I first installed the voltmeter, I was concerned that this behavior indicated a weak 12 V battery, so I asked my BMW dealer to check the 12 V battery. His shop foreman told me in November, 2017, that this is normal i3 behavior and that my 12 V battery tested good. In March, 2019, the same 12 V battery continues working as it always has.

The DC-DC converter is very aggressive keeping the 12 V battery charged, so it's difficult to measure the battery's resting voltage. I finally connected a voltmeter to the 12 V terminals beneath the cargo floor by running the leads up through the underside of the car. This allowed me to monitor the 12 V battery without opening the hatch, doors, or frunk which would turn on the DC-DC converter. The resting voltage seemed to be within the normal range. However, I did not leave these leads attached to the 12 V terminals, so I can't easily check the 12 V battery's resting voltage whenever I want.
Aloha,
Art

2014 BMW i3 Arravani Grey, Giga World, Tech + Driving Assist, Parking Assist, DC Fast Charging, JuiceBox EVSE

greenlion
Posts: 9
Joined: Tue Feb 05, 2019 10:56 am

Re: How many have had the drive train malfunction error?

Wed Mar 13, 2019 9:45 am

Well, count me in on the drivetrain malfunction error, powered up car this morning popped into D and boom, I had been reading up on things on here and read a post where someone simply physically moved the car a bit so i drove forward a few feet shut down entirely restarted and everything was good? car is a 17' rex

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