GLS Class (X166) Produced from 2016 to 2019

Front brakes DIY

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Old 01-17-2023, 10:57 PM
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Front brakes DIY

Any gotchas? According to FCP Euro, you do not grease the pins on the front brakes…

Thanks!
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Old 01-18-2023, 01:31 PM
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Not greasing the pins is also consistent with the M-B WIS instructions. (Also applies to rear brakes.)

If you don't mind, could you provide the link to the FCP Euro site where this information is provided? I'm curious to see what other things are discussed there.

FYI, there is a very long thread on rear brake DIY here: https://mbworld.org/forums/gl63-amg-...tors-pads.html. Some of the information there would also be applicable to front brakes. FWIW, I find the front brakes to be easier than the rears -- better access in the wheel well, no parking brake to move into service position. Only downside is that the front brake rotors are larger and heavier.

--Joe
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Old 01-18-2023, 02:47 PM
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Oh and getting that @#$&**&$@ plate off…
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Old 01-18-2023, 02:49 PM
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Originally Posted by joecparrish
Not greasing the pins is also consistent with the M-B WIS instructions. (Also applies to rear brakes.)

If you don't mind, could you provide the link to the FCP Euro site where this information is provided? I'm curious to see what other things are discussed there.

FYI, there is a very long thread on rear brake DIY here: https://mbworld.org/forums/gl63-amg-...tors-pads.html. Some of the information there would also be applicable to front brakes. FWIW, I find the front brakes to be easier than the rears -- better access in the wheel well, no parking brake to move into service position. Only downside is that the front brake rotors are larger and heavier.

--Joe
certainly!

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Old 01-18-2023, 02:54 PM
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Originally Posted by bakestein1
Oh and getting that @#$&**&$@ plate off…
​​​​​​​Ah, yes. It's no fun (and possibly damaging to wheel bearings) to have to pound on the rotors to dislodge them. This is a big issue in high-salt and high-humidity environments (e.g. USA-New England, USA-Florida); less so in dryer environments (US-California). The Brembo and Zimmerman rotors have a coating that seems to help with this.
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Old 01-19-2023, 11:49 AM
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I did the fronts on ours about a year ago, no issues or gotchas. I went with Zimmerman rotors and they've performed flawlessly.
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Old 01-19-2023, 07:23 PM
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I liberally coat the backside of the rotor and the hub with antiseize. It can be incredibly difficult to remove seized rotors. In fact, the first time I changed the rotors on my 63 I broke one of the rotors in half before it would come off. I even soaked the backside with PB Blaster to no avail.
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Old 01-19-2023, 07:50 PM
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Attached.
Attached Files
File Type: pdf
w166 front brake disc.pdf (327.8 KB, 54 views)
File Type: pdf
w166 front brake pads.pdf (452.3 KB, 51 views)
File Type: pdf
w166 front caliper.pdf (406.3 KB, 48 views)
File Type: pdf
W166 brake pad paste.pdf (462.3 KB, 62 views)
File Type: pdf
W166 front brake caliper.pdf (406.3 KB, 39 views)
File Type: pdf
W166 front rotors.pdf (327.8 KB, 49 views)
File Type: pdf
W166 remove brake disc.pdf (327.8 KB, 37 views)
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bakestein1 (01-20-2023)
Old 01-20-2023, 10:40 AM
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Wow, thanks!
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