The rear brakes of the 2020 316 4x4 are overheating.

[bvlenci]

A 2020 316 4x4 MWB camper van conversion with around 20,000 km.
Occasional periods of inactivity have caused the rear handbrake linings to get trapped and separate from the brake shoes. Additionally, the rear pads have been caught in their carriers.
The handbrake shoes have been replaced with new ones, and the pad/carriers have been thoroughly cleaned and lubricated with copper slip by my reliable local garage. Currently, everything is free and in excellent condition. Now, leave the vehicle parked at home without using the handbrake.
When the rear wheels are lifted off the ground, they rotate without any resistance. However, despite this, both rear brakes get much hotter than the front brakes after driving. I do not brake heavily.
All hand brake cables seem to be unrestricted, but I see that the situation deteriorates after using the handbrake.
Do you have any insightful explanations for why this may be occurring? Additionally, are there any additional examinations I can perform?
Thank you.

[Matt865]

PB4X4 is an alphanumeric code. What is the nature of the fronts? Are they cool? It should be the opposite way around, with the front being rather cool.It seems that the back part is responsible for most of the effort.It may be worthwhile to consider joining these as well.

[Matt865]

https://sprinter-source.com/forums/index.php?threads/73966/

[Chrishazle]

There are two potential options.
1) The brakes are experiencing friction and resistance, even though they were found to be functioning properly after inspection. Conduct a test by driving a moderate distance without using the brakes and then monitor the temperatures after stopping with minimum braking.
2) The front brakes are insufficient. Conduct a test by inspecting the front brakes to ensure they are functioning correctly.

[Trevorseaf]

Did the garage repair all the springs and shackles when they changed the brake shoes? The shackles are susceptible to seizing. Additionally, please inspect the cable compensator since it has the potential to become immobilised.

[bvlenci]

Thank you for all the responses.
Here are a few responses:
1. The fronts were colder than the rears.
2. I completed a run without using the hand brake, and I used minimum braking. The brake temperatures were acceptable for all wheels.
3. Engaged the handbrake while stationary to inspect temps. Stopped once again a few kilometres down the road - rear brakes exhibited higher temperature than the front brakes.
I am concerned that the wire connecting the handbrake lever to the mechanism in the centre of the chassis may not be releasing correctly, since both brakes are exhibiting signs of overheating.
It is time to once again get beneath the vehicle and inspect the motion of the different components of the system

[SkippyTom]

Can you confirm that the rear brakes were not experiencing higher temperatures than the front brakes prior to the completion of the task?

[bvlenci]

The initial cause of the task was the dragging caused by the disconnected brake lining and the partially stuck pads in the carrier. Prior to this, I had no knowledge of any problems.