Replacing Mercedes S550 (W221) Front brake Rotors and Pads - Page 2

10-01-2019, 04:44 PM

#26

kc1

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2009 S550 4Matic

Quote:

Originally Posted by DaleB

Looks like a good place for a crowfoot adapter on the torque wrench.

Yeah crowfoot adapter would work but cant seem to find it in 18mm. So i used a well placed universal joint which did the trick

.

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10-01-2019, 04:45 PM

#27

kc1

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2009 S550 4Matic

Quote:

Originally Posted by 39039

Mercedes must have documents to guide it, I'll check for you.

Thank you really appreciate it.

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10-01-2019, 07:21 PM

#28

OLDs550

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2017 e300

could you possibly give me the part number for the front rotors on a 2008 S550 base? I've looked for this platinum rotor you use and haven't been able to nail down the part number. I did find the Akebono ceramic pads on amazon $68!

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10-02-2019, 10:51 PM

#29

39039

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W221 S550 4MATIC

Quote:

Originally Posted by kc1

Thank you really appreciate it.

Here are some documents from STAR diagnostic computer, there maybe have some useful information to you.

Attached Files

Removeinstall brake pad on floating brake caliper.pdf (2.13 MB, 561 views)

Brake pads fixed caliper.pdf (361.3 KB, 260 views)

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10-03-2019, 12:48 AM

#30

kc1

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2009 S550 4Matic

Quote:

Originally Posted by 39039

Here are some documents from STAR diagnostic computer, there maybe have some useful information to you.

Yes thank you. It says 28Nm.

I tightened it to 14Nm and put blue thread locker. ...... so should i open it again and re-tighten it to 28Nm ?

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10-03-2019, 12:54 AM

#31

39039

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W221 S550 4MATIC

Quote:

Originally Posted by kc1

Yes thank you. It says 28Nm.

I tightened it to 14Nm and put blue thread locker. ...... so should i open it again and re-tighten it to 28Nm ?

Im not sure, but would rather re tight it again, due to the brake is most important of safe.

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10-05-2019, 09:19 PM

#32

kc1

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2009 S550 4Matic

Quote:

Originally Posted by 39039

Im not sure, but would rather re tight it again, due to the brake is most important of safe.

Yeah ur right. I fixed it today. Now they are at 28Nm. Thanx for the advice.

Last edited by kc1; 10-05-2019 at 09:29 PM.

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10-05-2019, 09:28 PM

#33

kc1

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2009 S550 4Matic

My new brakes and rotors look like this

:

New Front Rotors and Pads

New Rear Rotors and Pads

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The following 2 users liked this post by kc1:

39039 (10-05-2019), vettebk (01-24-2023)

07-25-2021, 11:37 AM

#34

Hatzenbach

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2009 W221

Where is the jack up point on the front?

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04-07-2022, 08:08 AM

#35

nath_h

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2008 CL550, 2022 EQB300, 2022 EQS580

I posted this elsewhere, but did not get a reply, so will try here. I changed my front rotors and pads last weekend, and found deterioration on the face of my pistons. The concentric circles are deteriorating/flaking away. Anyone else seen this? New calipers recommended? Thanks in advance.

Attached Files

IMG_2546.pdf (16.82 MB, 71 views)