replacing the ECU and the battery pack in Miev 2010

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hughthompson
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Real Name: Hugh Thompson
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replacing the ECU and the battery pack in Miev 2010

Post by hughthompson » Sat, 13 Apr 2019, 14:18

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

tonyw
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Real Name: Tony Wyatt
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Re: replacing the ECU and the battery pack in Miev 2010

Post by tonyw » Sat, 13 Apr 2019, 18:52

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...
cheers

tony


antiscab
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Real Name: Matthew Lacey
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Re: replacing the ECU and the battery pack in Miev 2010

Post by antiscab » Sun, 14 Apr 2019, 08:45

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
Matt
2017 Renault zoe - 25'000km
2007 vectrix - 156'000km
1998 prius - needs Batt
1999 Prius - needs batt
2000 prius - has 200 x headway 38120 cells

rhills
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Real Name: Rob Hills
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Re: replacing the ECU and the battery pack in Miev 2010

Post by rhills » Mon, 15 Apr 2019, 00:40

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,
Rob Hills
AEVA Webmaster
2014 Mitsubishi Outlander Aspire PHEV
Jul 2014 - Mar 2019
Total Petrol: 646.6L
ODO: 47979
Av Consumption: 1.35 L/100km

hughthompson
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Real Name: Hugh Thompson
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Re: replacing the ECU and the battery pack in Miev 2010

Post by hughthompson » Mon, 15 Apr 2019, 06:59

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

mikedufty
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Real Name: Michael Dufty
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Re: replacing the ECU and the battery pack in Miev 2010

Post by mikedufty » Mon, 15 Apr 2019, 18:42

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.

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

Post by mark_hetho » Fri, 19 Apr 2019, 06:45

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.

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