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#1
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W126 Brake Disc:How long does it take?
About how long of a job is it to replace the front disc? (Its cold out with few daylight hours left so I want to plan accordingly)
1991 350SDL- I've gone over 100,000 miles on this set of brake discs (With no idea how long they were on the car before hand....) I did the pads a few months back to try and stop a front end squeak. But the squeak is still there. Also i've been getting a lot of steering wheel shake (A balance on the tires helped for all of a few days....) Can I safely assume that a warped disc is the cause of all this?
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1982 300GD Carmine Red (DB3535) Cabriolet Parting Out 1990 300SEL Smoke Silver (Parting out) 1991 350SDL Blackberry Metallic (481) "The thing is Bob, its not that I'm lazy...its that I just don't care." |
#2
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Warped disks will give wheel and brake pedal shakes when the brakes are applied.
If you have never done this before, plan on a few hours, as you have to remove the brake caliper and the wheel hub w/bearings to remove the brake rotor. You should also service or replace the wheel bearings and inner seal. If you replce the bearings, replace the bearing races as well. You will have to unbolt the rotor from the hub, which can be a PITA since there is blue loctite on the threads.
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RRGrassi 70's Southern Pacific #5608 Fairmont A-4 MOW car 13 VW JSW 2.0 TDI 193K, Tuned with DPF and EGR Delete. 91 W124 300D Turbo replaced, Pressure W/G actuator installed. 210K 90 Dodge D250 5.9 Cummins/5 speed. 400K |
#3
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Yep, forgot to mention that the car shakes under braking as well (Feels almost like a sideways swaying as if a bolt is lose on the wheel....go ahead, ask me how I know how what that feels like.......)
__________________
1982 300GD Carmine Red (DB3535) Cabriolet Parting Out 1990 300SEL Smoke Silver (Parting out) 1991 350SDL Blackberry Metallic (481) "The thing is Bob, its not that I'm lazy...its that I just don't care." |
#4
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I'd replace them before something bad happens, like a broken disc..
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-diesel is not just a fuel, its a way of life- '15 GLK250 Bluetec 118k - mine - (OC-123,800) '17 Metris(VITO!) - 37k - wifes (OC-41k) '09 Sprinter 3500 Winnebago View - 62k (OC - 67k) '13 ML350 Bluetec - 95k - dad's (OC-98k) '01 SL500 - 103k(km) - dad's (OC-110,000km) '16 E400 4matic Sedan - 148k - Brothers (OC-155k) |
#5
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Quote:
I know, finding the time is difficult and i'm trying to avoid going to the dealer for it.
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1982 300GD Carmine Red (DB3535) Cabriolet Parting Out 1990 300SEL Smoke Silver (Parting out) 1991 350SDL Blackberry Metallic (481) "The thing is Bob, its not that I'm lazy...its that I just don't care." |
#6
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The big variables in this job are how difficult it is to release the discs from the hub and how confident you are at setting bearing play. Brake discs is one of the few areas the 124 has better than the 126
A third variable is whether any hub bolts are damaged beyond reusability. Short answer, plan on a full day. Sixto 87 300D |
#7
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Quote:
1. Looks like its going to be a learning experiance..... 2. Check 3. Got it 4. Not a problem
__________________
1982 300GD Carmine Red (DB3535) Cabriolet Parting Out 1990 300SEL Smoke Silver (Parting out) 1991 350SDL Blackberry Metallic (481) "The thing is Bob, its not that I'm lazy...its that I just don't care." |
#8
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Assuming the w126 is similar to the 123, it's the variables that will eat the time. For me it was a stripped hub bolt and stripped/corroded brake hose fitting.
You'll probably want to go ahead and do a complete brake fluid flush while your at it too. |
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