Stupid volvo's! - United Bimmer Community

**catalyst** · 05-29-2006, 07:38 PM

Well i replaced the control arms, tierods, sway links, and rotors/pads on my mom's s70, but im still getting rotor wobble under braking...

I checked to make sure the calipers were all tightened up and aligned correctly about a million times, they seem fine..

Only things i can think of are.. the caliper pistons are somehow fuxxored, or the caliper mounts are bent or something.

any ideas ??????

**Dudesky** · 05-29-2006, 07:44 PM

How old is the car? I'm guessing the same- piston(s). You might need to get the calipers rebuilt, or get remanufactured ones?

**xsperf** · 05-29-2006, 07:45 PM

hres a slight suggestion, rais the car up. have someone just tap the brakes so you can just feel a little resistance, and spin the tire, see if its harder to spin at one point than it is in general

**catalyst** · 05-29-2006, 07:52 PM

Quote:

Originally Posted by Dudesky

How old is the car? I'm guessing the same- piston(s). You might need to get the calipers rebuilt, or get remanufactured ones?

Its a 97.

Yeah i guess im going to have to rebuild those damn calipers, it could use some new brake lines anyway too.

Damn volvo has been 10x more trouble than either of the bimmers, and its the newest car my family owns!

**c1apton** · 05-29-2006, 07:53 PM

Depending on mileage, I'd be checking wheel bearings if all that you did is "spot on"

**Dudesky** · 05-29-2006, 07:55 PM

Wait till the climate control goes on the fritz on you . . My friend has one, drove him back and forth to drop off the car to two different dealerships about 6x, they still couldn't get it fixed. But I hate to admit, I like Volvo's.

**Numark318i** · 05-29-2006, 08:14 PM

Quote:

Originally Posted by catalyst

Well i replaced the control arms, tierods, sway links, and rotors/pads on my mom's s70, but im still getting rotor wobble under braking...

I checked to make sure the calipers were all tightened up and aligned correctly about a million times, they seem fine..

Only things i can think of are.. the caliper pistons are somehow fuxxored, or the caliper mounts are bent or something.

any ideas ??????

...i can actually help with this one. We got a 96 850GLT. Im sure they use the same braking system.

We have owned 5 volvos..and from what we experienced anythign above 95 had brake problems since they are such heavy cars. So dont expect teh brakes to last as long as any other cars.

That aside what company are you using for the brake parts? Our mechnic was telling us Brembo was the best for Volvo...but after 3 brake changes within 30k miles we tried Volvo parts. They last the longest. We have gone 20k miles and still no wooble.

Basically my point is volvos from those years have a weak braking system. Try using Volvo parts and try to put the car into 3rd to initially slow down. Just tell your mom to try to change her braking habbits and Im sure you will see a difference.

**added

also look into the ABS electrical motor. They tend to go out, and cause the ABS system to go off when braking. 200dollars or so to buy a rebuilt one.

**jybute** · 05-30-2006, 12:29 PM

did you check the runout of the rotor before you put the caliper back on. Any more than .010" and you will fell a woble. Also, if you slamed on the brakes the first couple of times you braked, that could cause the rotors to warp.

**celsdogg** · 05-30-2006, 12:37 PM

Quote:

Originally Posted by Dudesky

But I hate to admit, I like Volvo's.

i do too, like the S80.

**catalyst** · 05-31-2006, 12:05 AM

Quote:

Originally Posted by jybute

did you check the runout of the rotor before you put the caliper back on. Any more than .010" and you will fell a woble. Also, if you slamed on the brakes the first couple of times you braked, that could cause the rotors to warp.

Can you elaborate on what 'runout' means?

**Chris** · 05-31-2006, 12:56 AM

Quote:

Originally Posted by celsdogg

i do too, like the S80.

yeah, i hate to admit it too, but I like the S60and the S60R

**Dudesky** · 05-31-2006, 05:51 AM

Quote:

Originally Posted by catalyst

Can you elaborate on what 'runout' means?

Imagine the axis of the hub or front axle, and compare its orientation to the axis of the rotor. How parallel they are to each other is what's known as lateral runout. Actually jybute may be on to something here.

Here's more info:
http://www.brakeinfo.com/html/lateral.html