eTorque system maintenance

[4a4c55]

I've been trying to learn something about maintaining the eTorque engines. I'm coming up dry.

• How can I monitor the health of the 48-volt battery?
• Any way to see the operating voltage or charge direction?
• How do I replace the battery coolant? Do I have to pump out of the top, or is there a drain plug somewhere?
• Same for the MGU coolant. Can I drain it, or do I vacuum from the top?
• After changing coolant, do I need to bleed it somehow?

Who can share notes about maintaining the eTorque system?

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[rdfact]

This is all I could find in the Owner's Manual for a '21. Anyone have a shop manual?

Page 401 - Coolant Checks
Check the engine, battery (if equipped), intercooler (if equipped), and Motor Generator Unit (MGU) (if equipped) coolant (antifreeze) protection every 12 months (before the onset of freezing weather, where applicable). If the engine, battery (if equipped), intercooler (if equipped), and MGU (if equipped) coolant is dirty or rusty in appearance, the system should be drained, flushed and refilled with fresh OAT coolant (conforming to MS.90032) by an authorized dealer.

Page 452 - Fluid Capacities
3.6L Motor Generator Unit (MGU) 1.9 Quarts
3.6L Battery Coolant 2.5 Quarts

 

[4a4c55]

It shares the same coolant system as the main, once you change it changes with the main coolant

That seems very surprising, since there are three different expansion tanks (main, MGU, and battery) and at least one additional radiator. And the manual (as rdfact said) lists three different capacities. Plus, super-hot coolant from the engine would be circulating around the battery.

 

[4a4c55]

There's a diagram online as well as another thread going into detail here in forum ..

Are you able to provide a link, please? I'm striking out, as I mentioned. The best I can find is one of the same questions, unanswered. And still nothing about checking the operational status or health of the 48-volt battery.

 

[somedude922]

It shares the same coolant system as the main, once you change it changes with the main coolant

No it doesn’t. It’s two separate systems.

 

[Warped]

I've been trying to learn something about maintaining the eTorque engines. I'm coming up dry.

• How can I monitor the health of the 48-volt battery?
• Any way to see the operating voltage or charge direction?
• How do I replace the battery coolant? Do I have to pump out of the top, or is there a drain plug somewhere?
• Same for the MGU coolant. Can I drain it, or do I vacuum from the top?
• After changing coolant, do I need to bleed it somehow?

Who can share notes about maintaining the eTorque system?

Maintenance for the eTorque system only requires periodic visual inspection of the components and replacement of the serpentine belt at 150,000 miles. Reference and good article on eTorque, even though it discusses the Ram, but should be the same motor as ours.

 

[4a4c55]

Maintenance for the eTorque system only requires periodic visual inspection of the components and replacement of the serpentine belt at 150,000 miles

The owner's manual says the MGU and battery coolant should be replaced, too. Some of the questions I asked in my post are about how that replacement is accomplished.

The manual also says that the MGU and battery coolant re replaced at different intervals than the engine coolant, which impugns whitechocolate's claim that the coolants are in the same system.

 

[Mazin961]

Maintenance for the eTorque system only requires periodic visual inspection of the components and replacement of the serpentine belt at 150,000 miles. Reference and good article on eTorque, even though it discusses the Ram, but should be the same motor as ours.

which belt you mean ?

 

[Warped]

which belt you mean ?

The serpentine belt is the main belt that drives numerous compnents.

 

[Gregj]

IIRC the e-Torque belt is a separate belt.

Gregj

At least on the 2.0 it is.

 

[4a4c55]

it's really confusing so you mean number 5 & 7& 9 all of them are using the same antifreeze coolant ?

I don't think @whitechocolate 's response makes much sense. There are three separate reservoirs, so I don't see how they could possibly be the same coolant system.

 

[4a4c55]

I have really low level on number 7 which is ( power pack unit ) I don’t know which fluid I should add in it I couldn’t find any information anywhere even in the manual it’s self it’s getting really annoying and confusing man ??‍??‍

Maybe you should go to a mechanic or dealer if you can't figure it out. You'll also want to figure out where it's leaking. But in my owner's manual, it's on page 285:

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