[smithy15493]

Hi

Noticed this recently, even after a fairly brisk 20 minute drive from cold.

My left rear has a lot of hot air coming from it whilst the right has zero, could also hear a kind of ticking noise every few seconds once i pulled up, any ideas?

Its an E92 LCI 320d, been MOT’d and serviced recently and all was fine!

[charlieb]

Caliper is sticking. Pretty common and needs to be taken care of or you’ll damage the rotor.

[Emilime75]

Could possibly also be a wheel bearing.

[rasa bmw]

99% of time it will be caliper binding

[therealdb1]

Almost certainly the brake caliper sticking.
Fairly easy fix but do it immediately as it affects the braking and the heat build up could damage other components.

[Thermobaric]

Most likely a seized caliper. I had that a while ago. Killed my discs.

[Maxlude]

Wheel bearing wouldn't get so hot and would make a groaning noise, especially around corners.
Like others have said, sticky caliper is most likely culprit. Either stuck piston or slide pins due to damaged seals.

[Emilime75]

I've seen it before. Not discrediting the caliper as the culprit, I agree, it's the most likely, just throwing out another possibility being the bearing.

[MohiAli]

Did anyone manage to find out what the fix was for this? I have the same problem

[Arch Stanton]

I recently had this, it was a sticking caliper. Unfortunately before I realised it was sticking it has dried out the bearing so going in for a new bearing next week. Caliper cleaned up (easy job) and treated to new discs and pads on the rears