Emergency brake assembly broken

[8pack]

I was driving my 2007 XC70 and out of the left rear came a couple of huge clunks and then a grinding noise. I suspect broken/separated ebrake shoes which I had happen once before. I took it apart and that’s it exactly what it was. EXCEPT a large metal lug which sits between the green new of the brake pads facing the rear of the car broke off which looks like it was attached the knuckle/hub. It’s made of cast or pot metal. Not exactly sure but in any event it looks like a very big and expensive job to repair.

A couple of questions:

-Can you give me insight as to what parts need to be replaced to get it back in order?

-Do I need to replace the parts or can I get the ebrake to work well enough on the passenger side to pass inspection. Basically,only use the right side?

The car has 221k miles on it, the timing belt should be replaced and I have a small Evan leak somewhere. It is one big repair away from the scrap heap but it barely burns any oil, the interior is in stellar shape for its age, I have pretty new tires on it, exhaust was replaced 3 years ago, PCV upgrade/repair has been done and many other things. All major maintenance is done regularly including transmission drain and fill every 15k miles.

So if I can pass inspection and keep it on the road I would like to. Any and all advice appreciated!!





Pic of the broken part. HAVING TROUBLE UPLOADING I keep getting an error message. Never had this problem before

[Astro14]

I believe it’s the caliper bracket assembly that has that parking brake boss on it. Not terribly expensive. Might have to pull the rear wheel hub to replace.

Time to visit the Volvo parts counter folks and look at their high resolution photos. Make sure my memory is accurate.

https://www.fcpeuro.com/products/vol...0-xc70-8251314

[8pack]

Thanks!

Definitely not that bracket. It is behind the rotor in the ebrake mounting area. It is tang that sticks out. I will try and find it online but it looks like it is part of the hub.

How about the reality of just using the right side for the parking brake to hold during inspection?

[8pack]

It looks like I need the entire rear knuckle. It’s $415 just for that one part. I am not sure it is worth it if The emergency brake will work on just the passenger side. It needs to pass inspection in a month and is good for another year. Not sure if I need any special tools if I wanted to do it.

Big bummer.

https://www.volvopartscounter.com/oe...ItNWwtbDUtZ2Fz

[Astro14]

Rats - the whole knuckle? I would do it, though. A good running car is worth quite a bit these days. I don't think the brake will work on just one side - you won't get enough "pull" if one side doesn't have enough resistance, I think.

[8pack]

Yes, unfortunately the whole knuckle. I have never had an issue loading photos to this site before. Especially from my phone but I keep getting an error. If I could load the pic you would see why.

Ok. I will probably do it. It looks like a bigish job….a lot going on back there. Hopefully I don’t need a special tool for anything.

Thanks!

[Xfingers]

My car just passed inspection but I'm not sure exactly how they tested the emergency brake. You could stop the car on an incline, put it in Neutral, and apply the Parking Brake. If the car doesn't slip, maybe you'd have a chance?

[8pack]

Got the knuckle off. Took about 45 minutes. If I did it again it would take 20mins. The labor is pretty easy. Found a tip on here to press the hub off by passing 2 bolts through the wheel lug holes and tightening them against the knuckle. Came off in 60 secs.

Ordering parts today. That is the most painful part. $450 for the knuckle plus all the brake parts.

Astro, like you said a decent running vehicle is not cheap these days so it will be worth it. Thanks for the encouragement.

[Astro14]

Good news! Crazy times right now - a good running Volvo is a treasure - and I would know, I've got four of 'em...

Cheers!

[Brett San Diego]

It looks like you've already dropped the coin, but a wheel carrier is generally a good part to replace with a salvage part. Only concerns would be excessive corrosion or being bent in an accident, so just pull it off a car that hasn't been hit. Other option is to weld the broken part back to the wheel carrier. Cast iron can be welded.

Brett