P85D COOLING PUMP 4

[busaman]

can anyone tell me if it is possible to replace cooling pump #4 on my dual motor p85d without dropping the battery pack. tesla have quoted me $2200 to change a $275 pump and want a full 8 hours to change it the other 3 pumps are accessible and can be done in minutes.

 

[KalJoMoS]

How did you end up in situation that you have faulty cooling pump 4, what was the issue?

 

[busaman]

supercharging is stuck at 20kw and the preheating for supercharging does not work along with fault codes in the THC 000050 00501e 040050 050050
1e031e 501e1e

 

[busaman]

also i have a friendly ranger who will go online and run remote diagnostics for me.

 

[aerodyne]

can anyone tell me if it is possible to replace cooling pump #4 on my dual motor p85d without dropping the battery pack. tesla have quoted me $2200 to change a $275 pump and want a full 8 hours to change it the other 3 pumps are accessible and can be done in minutes.

Between the on line EPC and SM, one should be able to determine the location of the pump.

 

[busaman]

i can see where it is located but i dont know if there is a way at getting at it without dropping the pack.

 

[Lasttoy]

If u do it. Buy heater hose clamping pliers. I changed one of my pumps, didn't lose a drop of coolant.
I'm glad my antique has all pumps up front.

 

[busaman]

i have all the tools its just a PIA to have to do the job i am surprised there are no cooling pipes to the pack itself at least not in the removal instructions

 

[busaman]

just a thought would this pump be covered under the powertrain (as it is a motor cooling pump) warranty. as i still have 9 months and 6k miles left on it

 

[KalJoMoS]

Can’t your mate from the service give you any clue? Are all the pump’s the same (part no.?) or each have different functions? I might have issues with one of mine so looking some info as have not yet looked from the parts site.

 

[busaman]

well i spoke with tesla today all 4 pumps are different, and got a decent deal drop out the pack replace the pump and pyro fuse for £500 so im going to let them do it i can earn more doing what i do.

 

[Lasttoy]

My #2 pump was bad. When I took frunk out. They all looked the same. Oh if u get water hose pliers, clamp both sides. U don't lose any. It took five minutes to change it. By now there must be YouTube videos. I got mine off eBay, half price as SC wanted.

 

[busaman]

well i took my car to the SC to have the pack down and pump replaced it turned out to be the one on the cross member on the left side after all which was intermittent. and they charged me £400 for the job which i also could have done in a matter of minutes. not sure how much the pump was i haven't seen the invoice yet

 

[KalJoMoS]

As it was hinted previously I just get one of the pumps changed on mine, 2016 70D and this car only has two of them. So they changed the no.1 pump, left one on the cross member which eventually had internal leak (not any drops outside) and this evolved to corroded wire connector. All the work an parts was around €600. My consumption during this quite cold winter/spring has raised a bit as it seems the efficiency to warm the system was someway hindered. Similar drive back home from service was much more economical.

 

[dark cloud]

As it was hinted previously I just get one of the pumps changed on mine, 2016 70D and this car only has two of them. So they changed the no.1 pump, left one on the cross member which eventually had internal leak (not any drops outside) and this evolved to corroded wire connector. All the work an parts was around €600. My consumption during this quite cold winter/spring has raised a bit as it seems the efficiency to warm the system was someway hindered. Similar drive back home from service was much more economical.
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What alert did you get for this?

 

[KalJoMoS]

It was not shown to the user, I had the v.10 firmware still on my car and the service section did not revealed any to me. I was only able to confirm that there is two alerts but no possibility to see them. My observation basically was that as I need to warm the battery in wintertime it started to fail on it. Since the beginning of March it failed to warm the battery in a timeframe more than an hour. Basically you loose you SoC but the battery heating and regen was almost nothing, ambient temperature was -4°C. Cabin did warmed up but nothing to the battery. If I was using public AC charger (22kW) the battery did eventually heated as the IC did first showed explanation that it will start to charge as soon the battery is heated. DC 3rd party chargers did also had to wait until the BMS was satisfied.
Basically I was able to start the battery heater (changed last Nov.) but it only lasted app. 20min. And at home on the 240V UMC the normal charging was prolonged for more than 24h - on IC was indication that charging will take +24h. Initially I thought that the Range mode was the culprit but they diagnosed a failure in one of the cooling/heating pumps.