2020 316 4x4 rear brakes hot

[PB4x4]

2020 316 4x4 MWB camper van conversion , done around 20k miles.
One or two periods of inactivity, which have resulted in the rear handbrake linings sticking then detaching themselves from the brake shoes + rear pads bit stuck in their carriers.
New handbrake shoes fitted, pad / carriers cleaned off and copper-slipped by my trusted local garage. All free and good now. Now park it at home with the handbrake off.
Rear wheels turn freely when jacked up, no sign of any dragging at all, but both the rear brakes get quite hot after a run - much hotter than the front brakes. I am not a heavy braker.
Hand brake cables all appear to be free, but my perception is that it is worse after the handbrake has been on.
Any bright ideas as to why it might be happening / other checks I can do?
Thanks
P

 

[optimusprime]

PB4X4 What are the fronts like are they cool ...should be other way about front coolish ..looks like the rears are doing all the work.Might be woth joining these also .

Rear Brake Sensor Melting Brakes Overheating

Hello All, I searched the forum and did not find anything on rear brake senors melting. 2006 Adventurous RV not carrying much weight. Going down hills like Arrowhead the rear brakes both sides heat up tremendously and melt the OEM Brake Sensors. I have Drilled and slotted high carbon rotors and...

sprinter-source.com

 

[Bellow]

Two possibilities.
1) The brakes are dragging - despite being free when checked. Test by driving a reasonable distance while avoiding braking and check temps after pulling over with minimal braking to come to a halt.
2) The front brakes aren't doing enough. Test by examining front brakes for correct operation.

 

[CarFan79]

When the brake shoes were replaced did the garage replace all the springs and shackles? The shackles are prone to seizing. Also check the cable compensator as again it can seize up.

 

[PB4x4]

Thanks for all the replies.
A few answers:
1. Fronts were cooler than the rears
2. Did a run with minimal braking having not had the hand brake on before starting - brake temperatures ok all round.
3. Applied handbrake when stopped to check temperatures. Stopped again a few miles further on - rear brakes warmer than fronts.
I am wondering if the cable from the handbrake lever to the mechanism in the middle of the chassis is not releasing properly, as it seems to be both brakes which are heating up.
Time to get under the van again and check the movement in the various bits of the mechanism.

 

[markjay]

Are you sure that the rear brakes weren't getting hotter than the fronts before the job was carried out?

 

[PB4x4]

The original reason for the job was the dragging due to the detached brake lining and the pads a bit seized in the carrier. I wasn't aware of any issues before this.

 

[CarFan79]

The cables are not common for seizing. Check the compensator.

 

[PB4x4]

Took it to Andersons Commercials at Ibstock - great service at short notice. Mechanic who did the work clearly knew Sprinters inside out!
They did a full brake test. 4% drag on the rear brakes which is negligible. Stripped down rear brakes - nothing found - all in very good condition with no issues. Checked compensator - all ok. Also cleared all fault codes (mainly electrical due to low battery voltage related to periods of lack of use). One that did occur was U0416-FE implausible data were received from control unit ' Traction System'. Bled rear brakes. Did a test run, then re-checked for any fault codes.

No noticeable heating after journey home. I'll see how it behaves this weekend........

 

[Bellow]

One that did occur was U0416-FE implausible data were received from control unit ' Traction System'.

Is that the type of traction control that applies brakes to quell wheelspin?

 

[PB4x4]

The 4x4 system does use the braking system to stop wheels which lose traction. I did wonder if the brakes were being applied erroneously when the van is moving. However, as I understand it, an 'implausible data' error would not cause the system to be activated.
Done a couple of hundred miles towing my car on the trailer to Harewood Speed Hillclimb this weekend, with no noticeable heating - hopefully sorted