HV Battery Fan Service?

The fan actually keeps pretty clean, unless you have pets that shed alot or are a really dirty disgusting individual......

I cleaned my rarely used 2008 at 130k miles and there was very little of anything to clean out.

 

Yeah, just another way the dealerships try to make money. Just drive the car. Do the oil changes every 10,000 miles. Check the fluids and tire pressure when you tank up. Do the transmission fluid change. Nothing specified in the owner's manual until something like 100,000 miles??? Just change it at around 50,000 or 60,000 miles and about at around 120,000 miles or so. Other than that, really not much to worry about!! Again, just drive the car.

 

The HV Battery Fan is often over-looked. It IS important to keep the battery fan in clean, working order, to help prevent premature battery failure. The Gen III fan is pretty easy to access and is worth a check, but I wouldn't pay to have it done...

 

I'm sure that somewhere on this site is a how to for cleaning the fan, if you want to try it yourself.

 

• Do you have a dog that rides in the rear seats?
• Do you have children who ride in the rear seats?

If the answer to either question is "yes" then it's reasonable to pay for cleaning the HV battery fan once. Ask the mechanic "How dirty was it?" afterwards.

Alternately: Watch a YouTube DIY video for cleaning the HV fan, and if you are comfortable with the job, do it yourself.

One month ago I did a DIY repair of the HV battery pack on my 2005 Prius (83k miles). My HV battery fan was clean. But when I looked up my service records I noted that the Toyota dealer did the "HV battery fan service" procedure about 5 years ago. So that means my HV fan stayed clean for 5 years. Disclaimer: My dog only rides in the car for occasional trips to the vet, and my youngest child is 25 years old.

-EB

 

how much $$$ did they want?

 

More likely a ridiculous amount ................

 

I recently checked the fan on my Gen III for piece of mind (not sure of the original owner's habits). Very little buildup.

This thread was helpful:
gen 3 hybrid battery cooling fan dust buildup | PriusChat

 

I can tell you how much they want ... $391.60 !!!

They also included these other items is the "Summary -- Additional Items Not Performed This Visit"
- Cabin Air Filter $72.72 (this one I know I can do myself for $10 or so)

- Fuel Injection/Induction service using MOC products optimizer $154.43

- A/C Evaporator cleaning using dwd2 cleaning system $153.99

- Throttle body service $106.76

Really exciting to show up for my next service which is due the next week or two.

 

I don't think you need any of those services

 

That HV Fan Service went up to $479.71 at one point then today down to $303. With the passing of my beloved labrador retriever and the lowest price I've seen, I opted for the $303 service. I'll see what other humdingers they have in store for me in the future. I don't think they charge $70 for the cabin filter anymore. Pretty much everyone knows how to do that for cheap now. I've always done that one myself.

 

Cripes don't do that again. You seriously can do this yourself, in about an hour:

1. Pry off the hatch floor over the battery. Use pry tools, the fasteners are tenacious, but they WILL pop off. Leave most (if not all) of them off, to make it easier in future.
2. Push open a gap between the rear seat and seat back, directly below the inlet grill, reach in with a ratchet with 6" (mininum) extension and 12 mm socket, remove single bolt holding the grill piece. Use care: you do not want to drop it, might be pain to recover, possibly involving seat removal.
3. Release seat back latch, rock it forward a bit, and wiggle waggle the end piece of seat back (with grill) up and out.
4. Roll back and release the velcro holding back of seat back carpeting.
5. There's another 10 mm (socket size) bolt to be removed in that vicinity.
6. Pull off the ductwork leading to the fan. It uses easy to remove "christmas tree" style fasteners. There's one down deep, hard to get to, I would suggest just leave it off for future.
7. Fan is now accesible, no need to remove or disconnect to clean it. Run a q-tip between the blades, blow compressed air around the entire area. Run dusting boa through the ductwork.
8. Reassemble in reverse order.

 

You could it all your self including replacing fuel injectors for under 160. My be less injectors are most of that cost

Posted via the PriusChat mobile app.

 

or just watch this video and do it yourself to save you all that $$$

 

I fully disassembled it (rotor from stator, there was a circlip and few washers) to clean it completely with some degreaser and it became like new. Lubricated the bearings with some fresh engine oil and now it spins without any noises at all. This was at 100k miles and it had little dust buildup, nothing major. Disassembling and cleaning was easy job and it cost me $0.

 

Silly question - do you need to remove the clip to “disable” the hybrid battery to take out the fan? One video says you do (gen II), but the other don’t show this?

 

Did a message pop up when driving such as the cooling performance low? Try checking it by locating the vent on the right rear passenger side. Use a flashlight to see the vent. If you start to see dust bunnies then use a vacuum. If it’s clean then there is no need for a service. Yes a clogged vent can cause the batter to overheat and fail.

 

I didn't. Didn't remove fan either; just cleaned it in place.