2011 Battery Failed due to over heating at 130k

What is the replacement part? Be happy you got a new battery

 

Be glad they replaced your battery at 130,000 miles considering the UK warranty is only 100,000.

Do you use the cars for taxi work? If so, then yes the rear vent will get blocked.

 

Not sure which filter you refer to in your original post. There is no filter to clean in the rear HV battery. To be fair, that's part of the problem, especially for owners with a dog that sheds fur or a harsh used taxi.

But you could think about all the tax benefits to running 6 Prii as commercial vehicles, and the zero road tax, and the saving on fuel and potentially the saving on the LCCZ. I suppose the £150 per vehicle is the cost of one years car tax for a low emission Mondeo.

To be honest, you should be more worried about your inverters overheating than the HV battery. I trust you've had the recall carried out?

 

It is and I didn't realise about this new air vent upgrade.

I can't blame Toyota as the problem has only come to light on the gen3 Prius after certain high mileage users in Europe were suffering premature HV battery failure. I think that's why we have had the Hybrid Health Check introduced in the UK giving 10 years/unlimited mileage warranty to the HV battery assuming you comply with the service conditions.

The gen3 uses the HV battery much more aggressively than the gen2 but from a smaller pack size if I recall. The cold air flow helps stop it getting hot and I think the more extreme start stop traffic on our smaller streets in Europe over heats the battery too. Add all that together and you end up with these premature failures.

I do think Toyota should offer this replacement part you refer to to all extreme use users (read taxi's).

On a separate note, how've you found your EGR valves? I had to have mine replaced at 75,000 miles.

 

To OP: Did they say your fan was clogged? Any additional info, pictures, description, part no or link for the the replacement vent opening they're suggesting.?

Specifically, does it have a filter?

(Seems very expensive.)

 

See post #26 here:

gen 3 hybrid battery cooling fan dust buildup | Page 2 | PriusChat

(It's a replacement vent, apparently Toyota, with part no, around $40)

 

Perhaps the part including fitting and definitely included our 20% vat/sales tax.

 

Towards the end of the thread I linked, some of the purchasers of the item are starting to grumble, about the filter being very coarse, open, and non-matching color.

Earlier in that thread, I posted pictures including a DIY filter I put in behind the vent opening. It's a little more awkward to get to, for cleaning or removal. Also, I continue to worry a bit if it might be too much flow restriction. I think it's ok: it's a vacuum cleaner motor filter, fairly open weave.

It's as much a canary-in-coal-mine: I check it occasionally, just eyeballing through the grill opening with a strong light. It's picks up a few seeds and bits of lint/dust, but very little. I've taken it out once and blown compressed air through it in reverse, it was pretty clean.

I also have XGauges on my ScanGaugeII now, one for the middle HV battery temp sensor, one for the battery fan speed. If you've got a ScanGauge this is something worth monitoring on occasion.

 

G9230-76010

 

This is the filter mentioned in above linked thread:

G92DH-47010

(very open weave, though)

 

Rude person's, i looked up that part number, but don't see where it's an upgrade or a solution to a known problem?

 

o/p is too vague, what is this upgraded part, and why are most of us not experiencing overheated batteries? i don't see any reason for a recall or even a tsb.

 

You could achieve a slightly finer screen than that part, with a piece of mosquito screening. The advantage of purchased part is that it clips on the front, though.

 

mendel, how do you know he got the filter? $225. for a clip on screen, vat and labor?

 

Well I don't know. OP has not posted part no's (I think). What I have seen is in that linked thread. It's a very token mesh, very open.