E320 2004 transmission fluid leaking

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luckyus

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I noticed I was leaking transmission fluid. Found out that my screws needed to be tighteded around the transmission pan. Has this happened to anyone else? How did the screws get loose?
 

Arnie

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Screws can become loose with vibration and temperature changes over many miles; and indeed the major service checks include checking the tightness of many nuts and bolts.

However, as your car is relatively new, I would guess that someone probably forgot to tighten them in the first place! ...:shock:
 

landover

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As Arnie says this should have been checked at service.Unusual to leek in a car so new.

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OlafMaxwell

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Makes me glad I passed up on that shiny new E320 earlier this year....Does anyone get a Merc without problems these days?
 

piestore

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leak atf

Hi

Its more than lkley to be leaking from the electric plug 10 minutes and three o rings to fix, get it done on warrenty
 

landover

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Re: leak atf

piestore said:
Hi

Its more than lkley to be leaking from the electric plug 10 minutes and three o rings to fix, get it done on warrenty

The guy just told us it was the bolts that needed tightening.!!!!!!!!
 

piestore

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atf leak

Hi

Only giving the benifit of my experince. I see between 1 and 8 auto gearboxes per day half of which will leak from the plug, I have never had a 722.6 box leak from the sump gasket, yes if you go to tighten the bolts they will turn but the leak will still be there
 

OlafMaxwell

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That seems like a pretty major job then, if the leak is from the gasket rather than the plug. It's a case of insist on it being sorted out under warranty.
 

OlafMaxwell

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Piestore,

In my car the oil level sensor was faulty. It took three MB dealers six attempts over two years to get it replaced. When I did eventually manage to get it sorted the service manager in the MB garage could not even tell me where the sensor was located!! I used replace the oil pressure sensors in my Fiats in same time as it took to change a spark plug. I thought an oil level sensor should be a simple fix. It was anything but. Anything that takes that much effort is major. I know a sump gasket or O rings is a simple to anyone else but it is a mammoth task to an MB dealer.

Sorry if I sound cynical but I am a veteran [for veteran read victim] of MB service.
 

maybach

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Piestore
For your info it is not the "O" rings that fail it is the nylon housing that causes the concern, it shrinks.
Regards
Maybach
 

piestore

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oil leak

Hi
Maybach

Have a look at the latest TIPS document (211 atf leaks) there is an issue with the tab on the housing not allowing the the housing to seat and hence causing a leak, the fix for that is to remove the tab, at no time is the housing replaced unless cracked or damaged 99 times out of a hundred just the three o rings are required if you inspect the O rings you will notice that there have been three different types :-

1 early 7226 box black o rings leaked
2 later 722.6 box and any replacment O rings were red and didn't leak
2 new 7226 box as of mid 03 have clear/white latext type seal and these leak more than ever, although the replacment is the same, I still fit the red O rings when available
 
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