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   W202 C Class
     Gear Box Leaking
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Poster Thread
Schenker
Posted on: 2011/1/27 23:46
Penghulu
Joined: 2010/2/6
From: Johore Baru / Kulaifornia
Posts: 6220
Benz Model: W126 300SE C124
Message:
Re: Gear Box Leaking
Quote:

oceanblu wrote:
I will be doing with my "young" mechanic. Following your advice, this is my plan:-

1. Turn the bowden cable anti-clockwise to slow down shift.
2. Locate the vacuum modulator, T key-like pin, turning anti- clockwise to reduce the jerk.

Anything to be done at the gas pedal? Is this called the throttle cable connecting the gas pedal to the engine?

]


No, I did not adjust the throttle cable, in my W126 the throttle is a bunch of rod and links not a cable. The only cable there is this Bowden cable from the GB connected to the throttle


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

Fo shizzle ma nizzle!
Schenk a.k.a Kunjisutra, President Of Kunjistan

oceanblu
Posted on: 2011/1/27 23:40
Not too shy to talk
Joined: 2011/1/14
From: Kuching, Sarawak, Malaysia.
Posts: 40
Benz Model: W204, W212
Message:
Re: Gear Box Leaking
I will be doing with my "young" mechanic. Following your advice, this is my plan:-

1. Turn the bowden cable anti-clockwise to slow down shift.
2. Locate the vacuum modulator, T key-like pin, turning anti- clockwise to reduce the jerk.

Anything to be done at the gas pedal? Is this called the throttle cable connecting the gas pedal to the engine?

cheers!Quote:

Schenker wrote:
Quote:

oceanblu wrote:
Ok, I will try that tomorrow, and let you know the results.
Cheers!


Bro , are you a DIY person ? Just be careful and try to mark everythig before turning.
BTW, You will have to look for a nice open road for it to shift all the way.....I adjusted mine in the wee hours of the morning
Schenker
Posted on: 2011/1/27 23:28
Penghulu
Joined: 2010/2/6
From: Johore Baru / Kulaifornia
Posts: 6220
Benz Model: W126 300SE C124
Message:
Re: Gear Box Leaking
Quote:

oceanblu wrote:
Ok, I will try that tomorrow, and let you know the results.
Cheers!


Bro , are you a DIY person ? Just be careful and try to mark everythig before turning.
BTW, You will have to look for a nice open road for it to shift all the way.....I adjusted mine in the wee hours of the morning


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

Fo shizzle ma nizzle!
Schenk a.k.a Kunjisutra, President Of Kunjistan

oceanblu
Posted on: 2011/1/27 23:24
Not too shy to talk
Joined: 2011/1/14
From: Kuching, Sarawak, Malaysia.
Posts: 40
Benz Model: W204, W212
Message:
Re: Gear Box Leaking
Ok, I will try that tomorrow, and let you know the results.
Cheers!
Schenker
Posted on: 2011/1/27 22:57
Penghulu
Joined: 2010/2/6
From: Johore Baru / Kulaifornia
Posts: 6220
Benz Model: W126 300SE C124
Message:
Re: Gear Box Leaking
Quote:

oceanblu wrote:
Bro, where is the bowden cable? Is it the one at the LHS on top of the engine? If that is the bowden cable, I've been playing around with it. Is this cable very sensitive? I mean a little adjustment make a big difference? Seriously, I don't know where is the vacuum modular. Can I adjust this T pin on my own?
started


I think that is the one.....I can only write on how I did it , right or wrong, I am not sure but my GB is working very fine .
I stareed by loosening it until it was free, took it for a drive and saw that it was shifting too fast and had a sensation on slipping
I tightened it a lot and the , gears doesnt seem to change or changes very late at about 5k RPM
the best is keeping the cable right, that is, for it to stretch only when you accelarate....it shouldnt be loose and it shouldnt stretch

The vacuum modular
You will see an vacuum hose going from your intake manifold to the GB on the LHS into a black plastic thing, there will be a black rubber cap on it , remove the cap and you will be able to see a small metal piece, pull that metal piece and it will a T and it acts like a key to turn, after making the turn push it back into place to lock.
Turn anti clockwise to reduce the presure and clockwise to increase,
increasing it and having the wrong setting can make it shift too hard ( with a hard jerk ) or too smooth ( like slipping ). It should be in between.
I did mine by making small adjustments and taking it for a drive. The original presure , I think it is supposed to be between 3.8 to 4.1 but this is when the GB in new, ours is old and used and I believe some may vary accordingly


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

Fo shizzle ma nizzle!
Schenk a.k.a Kunjisutra, President Of Kunjistan

oceanblu
Posted on: 2011/1/27 22:26
Not too shy to talk
Joined: 2011/1/14
From: Kuching, Sarawak, Malaysia.
Posts: 40
Benz Model: W204, W212
Message:
Re: Gear Box Leaking
Bro, where is the bowden cable? Is it the one at the LHS on top of the engine? If that is the bowden cable, I've been playing around with it. Is this cable very sensitive? I mean a little adjustment make a big difference? Seriously, I don't know where is the vacuum modular. Can I adjust this T pin on my own?
Quote:

Schenker wrote:
Quote:

oceanblu wrote:
Bro Yus,
Today I collected my C220 from the workshop too.
Costs as follows:-
1. MB ATF 7 litres - RM343 (from Kuching)
2. ATF Filter - RM46 (from Kuching)
3. Oil Pan gasket - RM23 (from Kuching)
4. GB overhaul set seal - RM398 (from BK autohaus)
5. Clutch disc - RM312 (from BK autohaus)
6. Reverse piston(found broken) RM345 (from BK autohaus)
7. Piston spring (found broken) RM40 (from Bk autohaus)
8. Bearing RM16
Labour charge for overhaul - RM800

Total RM2323.00 * This is just to solve my GB leaking

Also replaced the followings:

1. Flex disc (coupling) - RM230 (from BK autohaus)
2. Fan belt + damper - RM105
3. Steering box seal - RM48

Oh my God, I spent almost 3K, and now my car still no power (the gear change too fast). When the gear change back from high to low, the jerk is still there!

I am so helpless! I called Ah Tee of City Cycle just now. He said very unlikely is the valve body. He advised me to check on the GB cable and also there is somewhere on the GB to adjust pressure? Life sux... :(
Quote:

YUS wrote:
Bro Oceanblu,

Today I collected my C220 from the workshop due to the gearbox leaking and the cost (phew!) are as follows:

1. Auto oil (5 ltr) - RM125.00
2. Auto Filter (1pc)- 45.00
3.Oil Pand Rubber (1pc)- 38.00
4.K1 Support O-Ring(1pc- 15.00
5.K2 Support O-Ring(1pc)-15.00
6.Workmanship -380.00
Total is RM618.00

Before, the workshop est ard RM1k. Im quite surprise the cost is lesser. According to him the others are still in
order so no need to change. Of course this is my regular workshp and I trust them. So now I just cross my fingers....
hoping nothing to happen cos I did told the mech if need
to overhaul just adv me.

So I wish the best for your repairs...



Bro dont panic, Adjust the bowden cable anti -clockwise shift later, clock-wise shift sooner...this should solve your short shifting and gear skipping
for the smoothness of change you will need to adjust the vacuum.....you will need a vacuum gauge to do this....I did mine through trial and error until I got it perfect...it is on the left side of the GB....remove a black cap and pull adjust the T like pin


On the bowden cable and the vacuum modular , dont turn too much , make little adjustment and keep a mark on where you started
oceanblu
Posted on: 2011/1/27 22:21
Not too shy to talk
Joined: 2011/1/14
From: Kuching, Sarawak, Malaysia.
Posts: 40
Benz Model: W204, W212
Message:
Re: Gear Box Leaking
*I read this at other sites*

Transmission repairs.

* Adjustments and In-Car Repairs
There are several problems that can be resolved with an adjustment (A simple adjustment is one that can be made without removing the transmission from the vehicle.) or minor repair.

If a late model transmission (computer-controlled transmissions started becoming popular in the early '90s) is not shifting properly, it is often the result of a computer sending incorrect signals due to a faulty sensor, or the transmission is not reacting to the computer command because of a bad connection or defective solenoid pack. These problems can be corrected while the transmission is in the car for considerably less money then a complete overhaul.

If a non computer-controlled transmission is shifting too early or too late, it may require an adjustment to the throttle cable. Since throttle cables rarely go out of adjustment on their own or due to wear and tear, these mis-adjustments are usually due to other repair work or damage from an accident. If the vehicle has a vacuum modulator instead of a throttle cable, there is an adjustment that can be made using an adjustment screw in some modulator designs. In vehicles with modulators, however, it is very important that there are no vacuum leaks and the engine is running at peak efficiency. Engine vacuum is very sensitive to how well the engine is running. In fact, many technicians use a vacuum gauge to diagnose performance problems and state-of-tune. Many problems that seem to be transmission problems disappear after a tune-up or engine performance related repair was completed.
Quote:

Schenker wrote:
Quote:

oceanblu wrote:
Bro Yus,
Today I collected my C220 from the workshop too.
Costs as follows:-
1. MB ATF 7 litres - RM343 (from Kuching)
2. ATF Filter - RM46 (from Kuching)
3. Oil Pan gasket - RM23 (from Kuching)
4. GB overhaul set seal - RM398 (from BK autohaus)
5. Clutch disc - RM312 (from BK autohaus)
6. Reverse piston(found broken) RM345 (from BK autohaus)
7. Piston spring (found broken) RM40 (from Bk autohaus)
8. Bearing RM16
Labour charge for overhaul - RM800

Total RM2323.00 * This is just to solve my GB leaking

Also replaced the followings:

1. Flex disc (coupling) - RM230 (from BK autohaus)
2. Fan belt + damper - RM105
3. Steering box seal - RM48

Oh my God, I spent almost 3K, and now my car still no power (the gear change too fast). When the gear change back from high to low, the jerk is still there!

I am so helpless! I called Ah Tee of City Cycle just now. He said very unlikely is the valve body. He advised me to check on the GB cable and also there is somewhere on the GB to adjust pressure? Life sux... :(
Quote:

YUS wrote:
Bro Oceanblu,

Today I collected my C220 from the workshop due to the gearbox leaking and the cost (phew!) are as follows:

1. Auto oil (5 ltr) - RM125.00
2. Auto Filter (1pc)- 45.00
3.Oil Pand Rubber (1pc)- 38.00
4.K1 Support O-Ring(1pc- 15.00
5.K2 Support O-Ring(1pc)-15.00
6.Workmanship -380.00
Total is RM618.00

Before, the workshop est ard RM1k. Im quite surprise the cost is lesser. According to him the others are still in
order so no need to change. Of course this is my regular workshp and I trust them. So now I just cross my fingers....
hoping nothing to happen cos I did told the mech if need
to overhaul just adv me.

So I wish the best for your repairs...



Bro dont panic, Adjust the bowden cable anti -clockwise shift later, clock-wise shift sooner...this should solve your short shifting and gear skipping
for the smoothness of change you will need to adjust the vacuum.....you will need a vacuum gauge to do this....I did mine through trial and error until I got it perfect...it is on the left side of the GB....remove a black cap and pull adjust the T like pin


On the bowden cable and the vacuum modular , dont turn too much , make little adjustment and keep a mark on where you started
Schenker
Posted on: 2011/1/27 22:08
Penghulu
Joined: 2010/2/6
From: Johore Baru / Kulaifornia
Posts: 6220
Benz Model: W126 300SE C124
Message:
Re: Gear Box Leaking
Quote:

oceanblu wrote:
Bro Yus,
Today I collected my C220 from the workshop too.
Costs as follows:-
1. MB ATF 7 litres - RM343 (from Kuching)
2. ATF Filter - RM46 (from Kuching)
3. Oil Pan gasket - RM23 (from Kuching)
4. GB overhaul set seal - RM398 (from BK autohaus)
5. Clutch disc - RM312 (from BK autohaus)
6. Reverse piston(found broken) RM345 (from BK autohaus)
7. Piston spring (found broken) RM40 (from Bk autohaus)
8. Bearing RM16
Labour charge for overhaul - RM800

Total RM2323.00 * This is just to solve my GB leaking

Also replaced the followings:

1. Flex disc (coupling) - RM230 (from BK autohaus)
2. Fan belt + damper - RM105
3. Steering box seal - RM48

Oh my God, I spent almost 3K, and now my car still no power (the gear change too fast). When the gear change back from high to low, the jerk is still there!

I am so helpless! I called Ah Tee of City Cycle just now. He said very unlikely is the valve body. He advised me to check on the GB cable and also there is somewhere on the GB to adjust pressure? Life sux... :(
Quote:

YUS wrote:
Bro Oceanblu,

Today I collected my C220 from the workshop due to the gearbox leaking and the cost (phew!) are as follows:

1. Auto oil (5 ltr) - RM125.00
2. Auto Filter (1pc)- 45.00
3.Oil Pand Rubber (1pc)- 38.00
4.K1 Support O-Ring(1pc- 15.00
5.K2 Support O-Ring(1pc)-15.00
6.Workmanship -380.00
Total is RM618.00

Before, the workshop est ard RM1k. Im quite surprise the cost is lesser. According to him the others are still in
order so no need to change. Of course this is my regular workshp and I trust them. So now I just cross my fingers....
hoping nothing to happen cos I did told the mech if need
to overhaul just adv me.

So I wish the best for your repairs...



Bro dont panic, Adjust the bowden cable anti -clockwise shift later, clock-wise shift sooner...this should solve your short shifting and gear skipping
for the smoothness of change you will need to adjust the vacuum.....you will need a vacuum gauge to do this....I did mine through trial and error until I got it perfect...it is on the left side of the GB....remove a black cap and pull adjust the T like pin


On the bowden cable and the vacuum modular , dont turn too much , make little adjustment and keep a mark on where you started


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

Fo shizzle ma nizzle!
Schenk a.k.a Kunjisutra, President Of Kunjistan

oceanblu
Posted on: 2011/1/27 22:01
Not too shy to talk
Joined: 2011/1/14
From: Kuching, Sarawak, Malaysia.
Posts: 40
Benz Model: W204, W212
Message:
Re: Gear Box Leaking
One more thing, when I stepped on my fuel pedal hard, I can't even overtake a Kancil as my car won't gain speed! Life really sucks....Quote:

oceanblu wrote:
Bro Yus,
Today I collected my C220 from the workshop too.
Costs as follows:-
1. MB ATF 7 litres - RM343 (from Kuching)
2. ATF Filter - RM46 (from Kuching)
3. Oil Pan gasket - RM23 (from Kuching)
4. GB overhaul set seal - RM398 (from BK autohaus)
5. Clutch disc - RM312 (from BK autohaus)
6. Reverse piston(found broken) RM345 (from BK autohaus)
7. Piston spring (found broken) RM40 (from Bk autohaus)
8. Bearing RM16
Labour charge for overhaul - RM800

Total RM2323.00 * This is just to solve my GB leaking

Also replaced the followings:

1. Flex disc (coupling) - RM230 (from BK autohaus)
2. Fan belt + damper - RM105
3. Steering box seal - RM48

Oh my God, I spent almost 3K, and now my car still no power (the gear change too fast). When the gear change back from high to low, the jerk is still there!

I am so helpless! I called Ah Tee of City Cycle just now. He said very unlikely is the valve body. He advised me to check on the GB cable and also there is somewhere on the GB to adjust pressure? Life sux... :(
Quote:

YUS wrote:
Bro Oceanblu,

Today I collected my C220 from the workshop due to the gearbox leaking and the cost (phew!) are as follows:

1. Auto oil (5 ltr) - RM125.00
2. Auto Filter (1pc)- 45.00
3.Oil Pand Rubber (1pc)- 38.00
4.K1 Support O-Ring(1pc- 15.00
5.K2 Support O-Ring(1pc)-15.00
6.Workmanship -380.00
Total is RM618.00

Before, the workshop est ard RM1k. Im quite surprise the cost is lesser. According to him the others are still in
order so no need to change. Of course this is my regular workshp and I trust them. So now I just cross my fingers....
hoping nothing to happen cos I did told the mech if need
to overhaul just adv me.

So I wish the best for your repairs...
oceanblu
Posted on: 2011/1/27 21:56
Not too shy to talk
Joined: 2011/1/14
From: Kuching, Sarawak, Malaysia.
Posts: 40
Benz Model: W204, W212
Message:
Re: Gear Box Leaking
Bro Yus,
Today I collected my C220 from the workshop too.
Costs as follows:-
1. MB ATF 7 litres - RM343 (from Kuching)
2. ATF Filter - RM46 (from Kuching)
3. Oil Pan gasket - RM23 (from Kuching)
4. GB overhaul set seal - RM398 (from BK autohaus)
5. Clutch disc - RM312 (from BK autohaus)
6. Reverse piston(found broken) RM345 (from BK autohaus)
7. Piston spring (found broken) RM40 (from Bk autohaus)
8. Bearing RM16
Labour charge for overhaul - RM800

Total RM2323.00 * This is just to solve my GB leaking

Also replaced the followings:

1. Flex disc (coupling) - RM230 (from BK autohaus)
2. Fan belt + damper - RM105
3. Steering box seal - RM48

Oh my God, I spent almost 3K, and now my car still no power (the gear change too fast). When the gear change back from high to low, the jerk is still there!

I am so helpless! I called Ah Tee of City Cycle just now. He said very unlikely is the valve body. He advised me to check on the GB cable and also there is somewhere on the GB to adjust pressure? Life sux... :(
Quote:

YUS wrote:
Bro Oceanblu,

Today I collected my C220 from the workshop due to the gearbox leaking and the cost (phew!) are as follows:

1. Auto oil (5 ltr) - RM125.00
2. Auto Filter (1pc)- 45.00
3.Oil Pand Rubber (1pc)- 38.00
4.K1 Support O-Ring(1pc- 15.00
5.K2 Support O-Ring(1pc)-15.00
6.Workmanship -380.00
Total is RM618.00

Before, the workshop est ard RM1k. Im quite surprise the cost is lesser. According to him the others are still in
order so no need to change. Of course this is my regular workshp and I trust them. So now I just cross my fingers....
hoping nothing to happen cos I did told the mech if need
to overhaul just adv me.

So I wish the best for your repairs...
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