Help Please! C180 Automatic Problem

ClassyC180

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Hello,
I dont like starting my first post with a problem but I have a 1996 C180 1.8 Petrol Automatic Mercedes Benz.
This gearbox hasent got a dipstick.
The car went into "limp mode" 6 months ago whilst driving - 2nd gear and Reverse are all thats available.
The Autotransmission fluid and filter were changed about a year ago (the car went perfect before and after this) - there was a clip on the old filter but none on the new, could the new filter have slipped and caused this problem?
There is no malfunction light on the dash.
I am looking forward to getting her polished up and showing her off again!!

Any advice no matter how small may help as my main dealer can offer no help.
 

rpe2

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Has your dealer read any fault codes?
Sound like limp mode, anyones guess as to what's causing it (without a readout)

Welcome to the forums..
 

television

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Hello and welcome,, why not use a piece of curtain wire and test the level,,,it should read 5.6cm up the wire with the engine temp up to 80c
 
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ClassyC180

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Thank You for the Welcome

Has your dealer read any fault codes?
Sound like limp mode, anyones guess as to what's causing it (without a readout)

Welcome to the forums..

The main dealer is quite a bit away - I can bring it to a local garage with dianostic equipment and a lift - I think I'll get him to change the transmission oil and filter anyway
 
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ClassyC180

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Thank's

Hello and welcome,, why not use a piece of curtain wire and test the level,,,it should read 5.6cm up the wire with the engine temp up to 80c

Good Tip - Thank you- That sounds great.
Anyidea how much fluid and what grade of fluid should be in that gearbox if I have my local garage change the filter and fluid?
 

television

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Good Tip - Thank you- That sounds great.
Anyidea how much fluid and what grade of fluid should be in that gearbox if I have my local garage change the filter and fluid?

This depends on the year of the car and what box it uses,,mid 96 on and it is the 722.6 box,, they are all listedhere
 
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ClassyC180

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This depends on the year of the car and what box it uses,,mid 96 on and it is the 722.6 box,, they are all listedhere

Hi again,
How can I be sure this box is in my car?
The list only seems to give a 'new 7.5' listing , what about a oil change?
 
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ClassyC180

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Hi,
I checked my chessic number and its a 722.603 00 164187
so it 7.5 liters new - what about an oil-change?

Can anyone offer me anymore advice on what to check?
 
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television

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Hi,
I checked my chessic number and its a 722.603 00 164187
so it 7.5 liters new - what about an oil-change?

Can anyone offer me anymore advice on what to check?

As you will have a torque converter drain plug it will take ½ liter lees than from new,,some oil will be in the cooler and journals
 
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ClassyC180

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As you will have a torque converter drain plug it will take ½ liter lees than from new,,some oil will be in the cooler and journals
Thank You - much appricatiated. - So I can take it any 722.6-- -- ---- gearbox will fit :confused:- I mite try and sourse a replacement if I cant sort the problem:shock:
 
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ClassyC180

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television

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A good battery would have a standing over night voltage of 12-12.5 volt,, most cars have a running voltage of between 13.8 and 14.2 volts, depending on the state of the battery.

Starting blips are when the voltage falls too low for the ECU's to re set
 

Axcontrols

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Am I right in assuming that Limp Mode can be caused by a fault in many other systems - not just the gearbox.

If that's the case then I'd say that you'd need to read the faults - best thing would be to clear the fault list and then go for another drive and read the faults again - the fault that's causing the limp will re-appear.
 

rpe2

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Am I right in assuming that Limp Mode can be caused by a fault in many other systems - not just the gearbox.

If that's the case then I'd say that you'd need to read the faults - best thing would be to clear the fault list and then go for another drive and read the faults again - the fault that's causing the limp will re-appear.

Yes to the above. It is unlikely to be a duff gearbox that will require replacement.
 
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ClassyC180

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Hi,
I'm gona start with a transmission filter- the one my dad fitted abouut a year ago had no clips & the new one has - I think maybe it slipped?
Should I change the oil in the torque converter?

Also when the car is ticking over Gearbox oil for ten minetes is leaking from the side of auto box. anyone any ideas? Regards Morgan.
 

television

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It depends on the colour and the smell of the fluid,,if it smells burnt,,then change it,,the colour should be a brownish red.

The leak will be the pin bush plug and easy and common to fix
 

rpe2

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Did you have the fault codes read?
 
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ClassyC180

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Hi, I havent got the fault codes read yet. No fault light showed on dash - but the mechanic should be able to access it with his diagnostic.
Regards Morgan.
 


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