P38A Rear brakes stuck

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Maat

Active Member
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Left rear brake has been getting stuck sometimes, to the point where it stinks and the rim is hot. I put new guide pins on the caliper and greased them accordingly, but problem hasn't gone away. We got another caliper to replace the old one (not brand new) and it seemed to fix the issue. But on a longer trip to the capital, it started stinking again. When we got back home both rear rims were equally hot and and the front ones cold. What could it be? Is there any such thing as a valve responsible for the rear brakes that could be getting stuck sometimes?

Consumption is better now, 11% compared to 13% as it was before.

1999 RR P38A 2.5DSE auto

Thank you to any replies
 
Left rear brake has been getting stuck sometimes, to the point where it stinks and the rim is hot. I put new guide pins on the caliper and greased them accordingly, but problem hasn't gone away. We got another caliper to replace the old one (not brand new) and it seemed to fix the issue. But on a longer trip to the capital, it started stinking again. When we got back home both rear rims were equally hot and and the front ones cold. What could it be? Is there any such thing as a valve responsible for the rear brakes that could be getting stuck sometimes?

Consumption is better now, 11% compared to 13% as it was before.

1999 RR P38A 2.5DSE auto

Thank you to any replies
New callipers are so cheap that fitting second hand ones is false economy.
When was the brake fluid last changed? It needs to be changed every 2 or 3 years otherwise it can cause corrosion in the modulator.
After changing the calliper, did you follow exactly the brake bleeding procedure in the workshop manual RAVE? Doing the bleed exactly is important.
 
In addition, how old are the brake hoses towards the rear. There are two for each side. One connecting to the caliper and one under the arch between the chassis and body.
 
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