W211 SBS pump noise solution!

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Raincheck

New Member
Joined
Nov 18, 2009
Messages
17
Location
Ireland
Car
2006 E Class 280 3.0 V6
Hi forum members,

I tought I have to share this with you if you are a W211 E Class owner.
Isn't it anoying to hear the SBS pump very so on time you hit the breaks.

There is a solution and it will reduce 90% off the pump noise sound level!

Inspect SBC hydraulic pump to see if your pump is equipped with damper
(see photo A) if not, produce a copy of the DTB and ask the dealer to
install this part at no cost. If refused, have them put you in touch with
MB rep to approve goodwill installation. Damper will not silence noise
completely, but it should substantially reduce it to comfortable level.
This is the only resolve MB released to address SBC noise.

Photo A - Before installation
SBC_damper2.jpg


Click here to download the DTB file 42.46_27e.pdf
Click here to download the TSB-SBSnoise-1.pdf installation

If your W211 SBS pump looks likes the photo above and you can hear
your SBS pump kicking in than continue reading about my experience!

----------------------------------------------------------------------

It takes a bit of persuasion and commitment to get things going and done @ MB,
but in the end all worked out fine. At no costs or any other financial stuff.

The result:

Photo B - SBS pump with a damper installed:
W211A.jpg

Photo C
W211B.jpg


Most annoying was the sound of the SBS pump kicking in every 4/6 six times I
hit the brakes accompanied with some vibration in the braking pedal.

With the SBS damper installed (shown on picture(B, C) above)
a significant improvement.

The noise & vibration before the installation is now 90% reduced after the
damper was installed. I can hear it slightly but only when the car is running
idle (waiting for a traffic light) car ventilation/arico & radio off. Strange is
when I hear it as mentioned above I can feel it to but again slightly.

While driving the car I don't hear/notice the SBS pump noise at all, so for
me it was well worth the hassle and I am a very happy E Class driver!

And I have to thank my MB dealer (Dublin Ireland) for the service!

Grtx Rick....

Hopefully this post will help others in their silent E Class quest!
And a good example of how useful this forum can be.

Ps. English isn't my native language.

rain001.jpg




Ps.
In the process of buying a Comand head unit to replace the Audio 20
I am in contact with Comand (Europe) Ltd to do a complete build in

Question:
Did you bought/changed your head unit @ Comand (Europe) Ltd
Please tell me your experience. I have to travel from ROI to the UK and
hope not to go again for any occurring issues.

Thanks in advance


Rick....
 
Last edited:
Thanks for the info , what Dealer did you use ?

Are you gonna travel to the UK to have Comand fitted ?
I can , and have done many times , fit Comand to a 211 . If your interested let me know . Im in Dundalk , about 45 mins from Dublin .
 
" Are you gonna travel to the UK to have Comand fitted ?
I can , and have done many times , fit Comand to a 211 . If your interested let me know . Im in Dundalk , about 45 mins from Dublin . "

Yes I am going to the UK but if there is any change of doing it in Ireland!
Can you do a full installation shorty? Can you drop me a e-mail at [email protected].

Grtx Rick...

Ps. I am in Lusk Co. Dublin even closer by:)
 
Last edited:
Rather than start a new thread, I thought I would bring this back to life!

Has anyone had this modification completed recently FREE with Mercedes?

Is it just a case of printing it off and approaching the dealer?

Mine is irritating, especially the light vibration through the pedal - and it seems it had a new SBC Pump last year too. Sounds like a mini Karcher under the bonnet.
 
Last edited:
Rather than start a new thread, I thought I would bring this back to life!

Has anyone had this modification completed recently FREE with Mercedes?

Is it just a case of printing it off and approaching the dealer?

Mine is irritating, especially the light vibration through the pedal - and it seems it had a new SBC Pump last year too. Sounds like a mini Karcher under the bonnet.

I am currently in the process of seeking goodwill payment via Milton Keynes.
My pump is very noisy both inside & outside the car.
As you say, irritating.

Splitpin
 
Is that double-damper thing a Merc part with part code?

How much does it cost? (ish)

How much time to fit? (ish)

Ta
 
I am currently in the process of seeking goodwill payment via Milton Keynes.
My pump is very noisy both inside & outside the car.
As you say, irritating.

Splitpin
Splitpin how did you get on with Merc MK were your sucessful?
 
Hi Splitpin,

I'd also be interested to know what feedback you receive from Merc MK.
 
Hi Splitpin,

I'd also be interested to know what feedback you receive from Merc MK.

Yes, sorry, forgot to reply to this. I approached them & was referred back to my franchised dealer for defect confirmation.

The fault was not precisely as detailed in the DTF but was simply a very noisy pump. The dealer instigated goodwill procedure & the pump was renewed free of charge (As usually happens) & I had my brake fluid renewedas part of the incumbent procedure.

The pump is now virtually noiseless :bannana:

Splitpin
 
Just wanted to say a big thanks to Raincheck for this post. My dealer hadn't heard of this, and the initial reaction was "no, fitting a new pump won't fix this". A print out of this thread, with the photos showing the dual damper & STAR bulletin helped, and the dealer got agreement that Mercedes Benz would pay for it. (it's not a warranty claim)

Now, an E55k that doesn't vibrate and "buzz" every 4th press of the brake pedal.

So thanks again!
 
Is that double-damper thing a Merc part with part code?

How much does it cost? (ish)

How much time to fit? (ish)

Ta

Yup, me too.

Is it really something a dealer needs to do?

I'm not sure if I can hear mine but I know the 'buzz' being described... :(
 
Hi all, I have today taken this into my local MB main dealer and he too hadn't heard of it. He has taken a copy of the Star bulletin and said to leave it with him. I'm hoping this will work out as the noise from the SBC, particularly first thing in the morning and even sometimes when I simply unlock the car is annoying and if there are people around embarrassingly loud. Fingers crossed.

By the way, anyone had this done at dealers located near to me, South Croydon area?
 
I used Mercedes Bromley but they updated my firmware which has improved it quite a lot.

The unit still buzzes slightly but it's nothing like what it was - every three or four presses but I only notice it at low speed.

The sound was never that loud but is quiet now.
 
Thanks JohnEBoy. If you don't mind me asking did you have this done under warranty/ good will from MB/ or pay for?
 

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