How many radiators ?

[Leonidas]

I have lost count of all the radiators in our Grenadiers

Main radiator in Front (for engine ) with fan 1 motor
Radiator-font bumper left (t case?) non-assisted?
Radiator front bumper right (gearbox?) non-assisted?
Heat exchanger behind the front left wheel (charge air cooling)- with fan
Engine oil cooler (on engine oil filter ) non-assisted
Have I missed something ? Is the above right ?

 

[Clark Kent]

I have lost count of all the radiators in our Grenadiers

Main radiator in Front (for engine ) with fan 1 motor
Radiator-font bumper left (t case?) non-assisted?
Radiator front bumper right (gearbox?) non-assisted?
Heat exchanger behind the front left wheel (charge air cooling)- with fan
Engine oil cooler (on engine oil filter ) non-assisted
Have I missed something ? Is the above right ?

Main radiator in Front (for engine) with fan 1 motor
Yes
Radiator-front bumper left (t case?) non-assisted?
Transfer case oil cooler (RHD ROW)
Radiator front bumper right (gearbox?) non-assisted?
Engine auxiliary radiator. Has a noisy fan that no one likes. (RHD ROW)
Item 12 below. B58 shown. B57 is the same.

Heat exchanger behind the front left wheel (charge air cooling)- with fan
Not sure what you're looking at there. The engine charge air cooler (intercooler) is behind the grill and mounted above the main radiator.
Are the transfer case cooler and the engine auxiliary radiator swapped around for LHD vehicles?

Engine oil cooler (on engine oil filter ) non-assisted
Yes

Have I missed something ? Is the above right ?

The A/C liquid heat exchanger on the left side of the engine near the washer reservoir cap

The transmission cooler. Stacked below the engine oil cooler.

 

[Leonidas]

What an enlightening, crystal clear, response!
Congratulations and ...many thanks !
PS : do you know if gearbox oil and t case oil are sent to their respective coolers/radiators by a pump or simply by temperature gradient?

 

[Clark Kent]

What an enlightening, crystal clear, response!
Congratulations and ...many thanks !
PS : do you know if gearbox oil and t case oil are sent to their respective coolers/radiators by a pump or simply by temperature gradient?

You're welcome.

I expect the transmission cooler circuit comes off a main pressure gallery downstream of the pump.

The transfer case is an Ineos design and is built by Tremec in Mexico so it's a bit of an unknown. At a guess, I'd say there is a small impeller pump that creates internal oil pressure to distribute oil to the upper gears, bearings and shafts. This is likely used to create the positive oil flow to the cooler. The only electrical connection is the temperature sensor for the offroad page so I don't think there is an inline electric pump in the cooler circuit. Pure guesswork because I have not seen an internal schematic for this unit. Someone will hopefully chime in if they have better info.

 

[Leonidas]

You're welcome.

I expect the transmission cooler circuit comes off a main pressure gallery downstream of the pump.

The transfer case is an Ineos design and is built by Tremec in Mexico so it's a bit of an unknown. At a guess, I'd say there is a small impeller pump that creates internal oil pressure to distribute oil to the upper gears, bearings and shafts. This is likely used to create the positive oil flow to the cooler. The only electrical connection is the temperature sensor for the offroad page so I don't think there is an inline electric pump in the cooler circuit. Pure guesswork because I have not seen an internal schematic for this unit. Someone will hopefully chime in if they have better info.

Again , many thanks for your- precious -response

 

[Greasemonkey]

You're welcome.

I expect the transmission cooler circuit comes off a main pressure gallery downstream of the pump.

The transfer case is an Ineos design and is built by Tremec in Mexico so it's a bit of an unknown. At a guess, I'd say there is a small impeller pump that creates internal oil pressure to distribute oil to the upper gears, bearings and shafts. This is likely used to create the positive oil flow to the cooler. The only electrical connection is the temperature sensor for the offroad page so I don't think there is an inline electric pump in the cooler circuit. Pure guesswork because I have not seen an internal schematic for this unit. Someone will hopefully chime in if they have better info.

This is the only picture I have of the transfer case oil circuit. According to my dealer, the transfer case should be filled with 1.8 liters of oil. The entire circuit should have 3.2 liters !!! This contradicts the Ineos Quick Reference Guide, which states that the entire circuit should have 2.6 liters of oil.