MBQureshi

Hi All. I'm thinking about doing the front brake job on my 2015 GL 450. Looking for the following info please
What is the torque spec for the caliper bracket bolts
What is the torque spec for the caliper bolts
Once I lift the car up using the jack points, what is a good place under the truck for jack stands

Thanks

MBQureshi

anyone with this info or any other sources I should look at for type of info?

DaveW68

You may want to ask your local mechanic if they have the torque specs. For lifting the car in the front, there is one spot that is exposed through the plastic shroud under the engine that is the perfect jack spot. But to find 2 spots for your jack stands, you will need to remove that plastic cover. For lifting at the rear, you can put the floor jack under the differential and lift it from there. I'm not sure where jack stands would go in the rear since I just let the jack support the weight when I'm swapping out my summer and winter wheels. But I'm sure you can crawl under there and find a couple of solid spots for the jack stands.

MBQureshi

Thank you for the response

maneesh

I changed my front rotors and pads. I will have to look up the torque but considering that you are asking where to put the jacks, I don't think you've opened up the truck yet.

So here is what I did, and I hope it is helpful. Also note that I had to get a 11mm hex socket, to loosen the brake caliper. The bolts holding the brake caliper bracket were on very tight. I needed to use an impact.

I put the jack underneath the frame where control arm connects to the body. I don't know if this is correct or not but it worked for me. And I did this multiple times because first time, i did not have the 11mm socket. The 2nd time, i was not able to get the bolt off the brake caliper bracket, and the third time, i was not able to remove the rotor. I finally was able to work through these. I put the jack stand underneath the jacking point.

I went with zimmerman rotors and textar pads. the textar pads are good but dusty compared to mercedes pads.

hope this helps.

MBQureshi

Thanks for the info Maneesh. Related to the brake caliper bracket, did you use 21MM socket or another size?
Also for the rotor screw is it T30 Torx?

maneesh

I don't recall if it was T25 or T30. But note that this screw is there from the factory to keep the rotor on the hub. On one side, i was able to remove this screw w/o an issue. On the other side, the screw got stripped. I have not replaced the rotor. I have to drill out the screw and replace (although not necessary) with another screw.

mrmotoguzzi00

some good info here......... ill go find the specs...

https://mbworld.org/forums/gl63-amg/...ml#post7753647

mrmotoguzzi00

From my notes when i did front/rear pads and rear rotors.....



Amazon


rear brake pad kit
199.40

front kit
199.40



Use 13 mm socket remove retaining bolt


push out pins with a punch


Pads should pull out easily... If not.. I used a flat blade screwdriver to gently push them into the caliper.


The rear pads require putting the car into pad service mode as described here:

1. Turn the ignition to Position 1.

2. Make sure the mileage is displayed in the dash center window

3. Don't wait very long before accomplishing the next step: Push the far right "telephone accept call" button on the steering wheel, then push the "OK" button on the left and hold both down for 5 seconds or so.

4. The workshop menu should appear.

5. Scroll down to "Pad replacement" and push OK.

6. Choose OK for "Moving to fitting position"


Read more: https://mbworld.org/forums/gl-class-...#ixzz3JSpXdsvK

This will move the cylinder in the caliper far enough back to replace the pads...




wheel lug nut torque is 110 lbft


https://mbworld.org/forums/gl-class-...l#&gid=1&pid=2

DaveW68

Don't tell N_Jay what you paid for those pads. He'll tell you that you got totally ripped off as he said that he does a full brake job on the front for $150 including rotors, pads, and shop supplies. Of course he puts Chinese garbage on his truck, thus considering the rest of us who use quality OEM parts on our 5800 lb GL's as getting ripped off.

But, you can definitely get OEM parts cheaper than Amazon. I ordered mine through germanautopartssource.com, which is actually a Benz dealer parts department, I believe in PA. Here are the prices I paid for specific OEM front brake parts:

Part Number Part Name Price Quantity Total
166-421-16-00 Rotor $139.23 2 $278.46
008-420-00-20 Brake Pads $143.91 1 $143.91
164-540-10-17 Wear Indicator $7.87 1 $7.87
019-990-56-01 Bolt W Flange $4.45 4 $17.80

Subtotal: $448.04
Estimated Shipping: $17.02
Total: $465.06

mrmotoguzzi00

probably but shipping was free and that was the best deal i came across when i did a search... I figure the OEM stuff lasted over 50k miles so im good with that.... and no warpage in that entire time so....

DaveW68

Yep, my original OEM front brakes lasted 50k miles too (according to the service records I have), which I think is extremely impressive given the weight of these trucks. OEM pads and rotors in my '07 S600 lasted less than 30k. I posted the source and prices so people can use them as a source as I did extensive online shopping to get the best prices on OEM parts. The price you paid for the front pads through Amazon is the exact same price my local Benz dealer retails them for.

MBQureshi

Thanks to all who replied. I ordered the parts on Pelican Parts. I went with
Zimmerman coated Rotors
OEM Pads
New OEM Sensor
Ordered 2 new Rotor retaining screws
Ordered Mercedes brake part lubrication tube
Parts show up next week so will attempt the job then

DaveW68

All good parts there. What did everything cost you, including shipping?

MBQureshi

$451.54 total.
Shipping was $31.25
Tax was 29.54

maneesh

It was a 21mm socket but I suggest you don't use a deep wall. BTW, i used a cordless impact, not an air impact.