560 SL locked brakes

[garys9146]

I have an 87 560sl which has been in storage for quite some time. About 5 years ago I replaced the master cylinder and bleed the brakes using a pressure bleeder. While the car has not been driven for a while I noticed it seems like one of the rear brakes is frozen. Any suggestions on how to unfreeze the brake?

[nobby]

Originally Posted by garys9146

I have an 87 560sl which has been in storage for quite some time. About 5 years ago I replaced the master cylinder and bleed the brakes using a pressure bleeder. While the car has not been driven for a while I noticed it seems like one of the rear brakes is frozen. Any suggestions on how to unfreeze the brake?

Parking brake off?

Are your flexible brake lines good? How old are they?

[garys9146]

Yes the parking brake is off. Brakes ,ines are good - original, the car only has 41k miles. I'm wondering if its a frozen calipher?

[nobby]

Originally Posted by garys9146

Yes the parking brake is off. Brakes ,ines are good - original, the car only has 41k miles. I'm wondering if its a frozen calipher?

Mileage has nothing to do with a 27 year old car / part.

Flexible brake lines have been known to break down internally essentially blocking the fluid to or fro.

Likely, as you suggested, you have a seized caliper.

But don't discount other possibilities.

I would get a big ass screw driver / pry bar and try and get the pads out first....see how far I got with that. Then you can remove the caliper for a look see.

Rebuilt calipers are cheaper than the rebuild kits. Replace in pairs.

[meltedpanda]

I suspect your brake lines are collapsed inside, dirt in the reseviouror frozen caliper , or all three . Each part needs to be evalutated. At 27 years I would do all brake lines that are rubber, drain the fuild , check calipers per above, replace with rebuilt if frozen.

No need to take chances on what is essentially cheap parts and easy labor

[nobby]

Originally Posted by meltedpanda

I suspect your brake lines are collapsed inside, dirt in the reseviouror frozen caliper , or all three . Each part needs to be evalutated. At 27 years I would do all brake lines that are rubber, drain the fuild , check calipers per above, replace with rebuilt if frozen.

No need to take chances on what is essentially cheap parts and easy labor

Yup.

[garys9146]

Thanks, I'll check these all out