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mybenz | mysatisfaction Forum Index
   W210 E Class
     Howling sound and hard downshift from my Gearbox
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Poster Thread
bonghc
Posted on: 2012/7/21 23:29
Just can't stay away
Joined: 2009/7/9
From: Selangor
Posts: 98
Benz Model: W210 E240 2.6 2001
Message:
Howling sound and hard downshift from my Gearbox
As you may know I have seek for advise a few times on this forum regarding the hard downshift of my 722.440 gear box. I noticed this problem a few days after I bought the car, I have been driving this car for more than two years now, I went to a few mechanics, all of them asked me to overhaul the Gearbox. I have also changed the AFT a few times and service the valve body once as recommended from some of the members in this forum, however, the problem remain the same.
Last week, I asked the mechanic (Mr. Ken) who serviced Mr.Looi's valve body to service my valve body when his Assistant was changing my steering rack. The moment Mr. Ken opened my valve body, he noticed that one of the ball bearing was placed in the wrong profile. He further confirmed it with the manual and indeed it was wrongly placed. He serviced the valve body (the valve body was as clean as new because my last AFT and valve body service was eight months ago)and placed the ball bearing back to the right profile, Believe it or not the howling sound and harsh downshift problem was totally solved.
Good job Mr. Ken and thank you Mr. Looi
Mabel
Posted on: 2012/7/21 23:32
Benzo mania
Joined: 2007/8/7
From: Shah Alam, Cyber Jaya, Sunway
Posts: 20052
Benz Model: S320L, E240, C200
Message:
Re: Howling sound and hard downshift from my Gearbox
Good information bonghc !

I will keep in mind Looi's mechanic in future...

Thanks for sharing !


----------------
Cheers/Mabel

Nothing great was ever achieved without enthusiasm
Take time to read. It is the fountain of wisdom
Membership Number: One Nine Seven Seven

badrulh
Posted on: 2012/7/22 9:27
Penghulu
Joined: 2009/11/3
From: SEBERANG TAKIR KUALA TERENGGANU
Posts: 2175
Benz Model: W124 260E
Message:
Re: Howling sound and hard downshift from my Gearbox
Quote:

bonghc wrote:
The moment Mr. Ken opened my valve body, he noticed that one of the ball bearing was placed in the wrong profile.

bonghc,
glad to hear you hv solve your prob..
correct,they hv tiny ball bearing inside the valve body..
once it missplaced or wrong placed..there will be a big prob..good luck bong..


----------------
make peace not war
membership number:five 1 five 1

abernard
Posted on: 2012/7/22 9:58
Quite a regular
Joined: 2010/3/14
From: putra heights subang jaya
Posts: 66
Benz Model: c200 kompressor
Message:
Re: Howling sound and hard downshift from my Gearbox
hi bong can you pls tell me mr kens w/shop.
thanks


----------------
Bernard5783

adiblalooi
Posted on: 2012/7/23 9:32
Certified Benzitos
Joined: 2011/5/27
From: UEP Subang Jaya
Posts: 276
Benz Model: W210 E280-V6
Message:
Re: Howling sound and hard downshift from my Gearbox
Hi bonghc,

I am glad that your gearbox problem solved. I guess you have made the right decision to service your gearbox valve body first before spending on other more expensive job to your gb.

Quote:

bonghc wrote:
As you may know I have seek for advise a few times on this forum regarding the hard downshift of my 722.440 gear box. I noticed this problem a few days after I bought the car, I have been driving this car for more than two years now, I went to a few mechanics, all of them asked me to overhaul the Gearbox. I have also changed the AFT a few times and service the valve body once as recommended from some of the members in this forum, however, the problem remain the same.
Last week, I asked the mechanic (Mr. Ken) who serviced Mr.Looi's valve body to service my valve body when his Assistant was changing my steering rack. The moment Mr. Ken opened my valve body, he noticed that one of the ball bearing was placed in the wrong profile. He further confirmed it with the manual and indeed it was wrongly placed. He serviced the valve body (the valve body was as clean as new because my last AFT and valve body service was eight months ago)and placed the ball bearing back to the right profile, Believe it or not the howling sound and harsh downshift problem was totally solved.
Good job Mr. Ken and thank you Mr. Looi
yon76er
Posted on: 2012/7/24 21:11
Home away from home
Joined: 2010/6/16
From: Rawang, Selangor
Posts: 391
Benz Model: c200 W203&202
Message:
Re: Howling sound and hard downshift from my Gearbox
For future needs ,,,,,,Mr.Ken & Mr Looi Address please....TQ


----------------
Yon76er
If You see the EAGLE..well it's Me

Membership No: 6158

adiblalooi
Posted on: 2012/7/25 12:13
Certified Benzitos
Joined: 2011/5/27
From: UEP Subang Jaya
Posts: 276
Benz Model: W210 E280-V6
Message:
Re: Howling sound and hard downshift from my Gearbox
Hi yon76er,

I am not mechanic and not owning any workshop. Chong Brothers address as follows:

Chong Brothers (Ken 012-287 3210)
16, Jalan PJS 1/28
Taman Petaling Utama
Tel: 03-7784 2339

(NPE from Old Klang Road after "Brothers" and SHELL)

GPS coordinate: 3.081048,101.646086

Google Map link:
http://goo.gl/maps/OTXm

https://maps.google.com.my/maps?q=3.081048,101.646086&ll=3.080995,101.647235&spn=0.003214,0.005252&num=1&t=m&z=18

Map to Chong Brothers. If not sure, please call him for direction.The road name in the business card already changed.


Quote:

yon76er wrote:
For future needs ,,,,,,Mr.Ken & Mr Looi Address please....TQ
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