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replacing the ECU and the battery pack in Miev 2010

Posted: Sat, 13 Apr 2019, 14:18
by hughthompson
hi I have done 120,000km in our Mitsubishi MIEV 2010 model. recently, when we tried to charge the car nothing happened. it appears the the ECU needed replacing. we decided to replace the battery pack at the same time because the range was unreliable, slipping below 80 km range.

my query is what is people's experience with replacing the battery pack for the Miev?
how did you dispose of the batteries?
were they of any use to others?
who might be interested in obtaining them?

i do not know at this stage just how the pack is replaced, whether there is a new case or whether the batteries disassembled before they are removed . i will know on Monday 15th April 2019
I am keen to assist anyone who might find a use for them.

regards Hugh

Re: replacing the ECU and the battery pack in Miev 2010

Posted: Sat, 13 Apr 2019, 18:52
by tonyw
If the 12 volt vehicle battery under the bonnet has gone flat, you won't be able to start charging.

I'm sure you know that, since you've owned the car for so long, but just making sure...

Re: replacing the ECU and the battery pack in Miev 2010

Posted: Sun, 14 Apr 2019, 08:45
by antiscab
Hi Hugh,

welcome to the forum

If I may ask, where are you located?

Assuming the 12v battery is okay, the charger packing it in is somewhat separate to the battery ecu

If getting a new battery, yes the old cells are valuable, both as spares for other old imievs, and for use as solar batteries

Re: replacing the ECU and the battery pack in Miev 2010

Posted: Mon, 15 Apr 2019, 00:40
by rhills
Hi Hugh,

I recently replaced the batteries in our Mitsubishi Outlander PHEV after water ingress caused major problems. Mitsubishi Policy is to destroy the battery packs because of perceived safety hazards. I pushed back hard and eventually convinced them to let me keep my old pack. My main argument was that as I had purchased the vehicle, the pack belongs to me, not Mitsubishi and therefore they have no right to take it from me.

I'm glad I did as the cells in my pack turned out to be in perfect condition. The problems we had were almost certainly due to water damage to the battery management electronics inside the module rather than the cells themselves. I had the pack transported to an EV specialist here in Perth who dismantled it for me. As others have mentioned, the cells are likely to be of interest/value to others. It has long been argued that Lithium cells that are no longer useful for vehicles still have a potentially long life ahead of them as domestic energy storage.

HTH,

Re: replacing the ECU and the battery pack in Miev 2010

Posted: Mon, 15 Apr 2019, 06:59
by hughthompson
from Hugh
in Scarborough QLD
The !2 volt battery was fine at the time of the ECU not working in early March
I have spoken to Graeme Manietta. Now waiting on Mitsubishi to let me know if the parts can be put in today since the parts came in last week

Re: replacing the ECU and the battery pack in Miev 2010

Posted: Mon, 15 Apr 2019, 18:42
by mikedufty
Not charging seems likely to be a failure of the charger, not the ECU. It appears to be a quite common fault, and commonly mis-diagnosed by mitsubishi.
I was only able to stop them replacing the ECU on mine because I was lent a known good one for them to try and confirm that was not the issue.

Have a look at the thread on it here http://forums.aeva.asn.au/viewtopic.php?f=49&t=5519
Also well worth a look at the related threads on the my i-miev forum.
This is probably the most relevant, but there are several others.
http://myimiev.com/forum/viewtopic.php? ... d2234a1521

A new battery won't do much good without a functional charger - although some have given up on the onboard charger and just bought a portable Chademo to DC charge.
Replacement charger is about $4000 from mitsubishi (though they did ours as warranty). Some have had success with second hand chargers and with pulling it apart and replacing the few failed components.

Re: replacing the ECU and the battery pack in Miev 2010

Posted: Fri, 19 Apr 2019, 06:45
by mark_hetho
We repaired our charger. The dealer was going to replace the EV ECU first, since it is less expensive, and then the charger. Total cost would have been around $6000. The parts for the repair were under $100.

Diagnosing the fault is reasonably straight forward - once the cover is off the charger there is a top board to unscrew, and under that there were clearly scorched components. The dealer won't do this for you, they will only diagnose the fault by replacing parts.

Please contact me if you would like further information.