Hybrid Technology Unique topics related to the GS450H model hybrid drivetrain and other features/options found only on the GS450H. Please use the main 4GS forum for discussion about shared components with other fourth generation GS models.

Inverter Drain Plug Location

Thread Tools
 
Search this Thread
 
Old 08-30-24, 11:19 AM
  #1  
Tclark502
Rookie
Thread Starter
 
Tclark502's Avatar
 
Join Date: May 2019
Location: NC
Posts: 29
Likes: 0
Received 17 Likes on 8 Posts
Default Inverter Drain Plug Location

I just reached 150k miles and I'm hoping to DIY the inverter coolant change. I have TechStream so I should have no issues bleeding the system, but I realized I have no idea where the drain plug for the inverter is and can't find any information online. Has anyone here done this job and could point me in the right direction? Even just guidance on what the plug looks like would be helpful (petcock, hex socket, hex bit) but pictures would be extremely helpful.
Thanks!
Old Yesterday, 10:26 AM
  #2  
Lwerewolf
Racer
 
Lwerewolf's Avatar
 
Join Date: Jan 2019
Location: Sofia
Posts: 1,286
Received 254 Likes on 192 Posts
Default

There's a drain plug at the front of the hybrid transaxle case - it's a 10mm hex, there's nothing else like it. Needs a new gasket afterwards, torque is 39nm. You also have to remove the "no. 5 inverter cooling hose" - which has AC lines illustrated around it, you should be able to figure out which one it is by the EPC's illustration for the inverter cooling.

Honestly, it's 3l of coolant in a VERY nonaggressive environment, so I wouldn't be _too_ thorough about it.

Given how the coolant circuit snakes up and down and round and round all over the place, bleeding it right might take some patience - be warned.
The following users liked this post:
bclexus (Yesterday)
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
ukrkoz
GX - 1st Gen (2003-2009)
13
05-16-23 07:34 AM
Cavedog
LS - 4th Gen (2007-2017)
0
04-09-23 01:54 PM
budshad
RC - 1st Gen (2015-present)
1
07-16-22 11:46 AM
dcdyd
RX - 2nd Gen (2004-2009)
10
04-11-13 08:58 PM



Quick Reply: Inverter Drain Plug Location



All times are GMT -7. The time now is 01:17 AM.