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PointedThree :  Vans, Trucks, SUVs and Other Forums : W164 & W166 M-Class : 40K Mile Transmission Service

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40K Mile Transmission Service
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Posted 8/26/2008 3:11 PM
DUTCH
Administrator Doppelgänger




Date registered: Apr 2006
Location: US, GA, Atlanta
Vehicle(s): 2015 Audi Q7 3.0 TDI,2018 Sprinter
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RE: 40K Mile Transmission Service

Wolfgang - 8/26/2008 9:46 AM


Mercedes master mechanic Tim Eckart developed a method to change fluids, which seems to be pretty popular:





The impossible part of trying to follow the WIS is that you must first refill 1 liter more than you drained. Then you must run the engine and cycle through P-R-N-D, etc. Then, with the engine idling in P, you must allow any excess oil to drain with the transmission at 40°C. The big problem is that, by this time, the transmission is already much hotter (~70°C); and there is a very big warning about the fact that too much will drain out, if the temperature is more than 40°C.

The only way to do this would be to refill and do the gear cycle. Then shut it off and allow it to cool over night. The next morning you could hook up the STAR, start the engine, remove the drain plug and allow it to drain while warming up. When it hits 40°C, close the plug and be done with it.

The engineer who designed this system must have been doing some very bad drugs when he did it. He certainly never worked on a shop floor or did this procedure himself.
#130242 - in reply to #130202
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Author
Posted 8/26/2008 5:09 PM
Wolfgang

Date registered: Dec 1899
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RE: 40K Mile Transmission Service

DUTCH - 8/26/2008 12:11 PM


The impossible part of trying to follow the WIS....





The difficulty in following WIS without using a machine has probably contributed to why the Eckart system has become so popular. It takes as little as an hour, and usually resolves any issues owners reported. In the meantime he also sold his contraption to quite a number of shops, all over Europe. Someone might be tempted to apply some of the legendary yankee ingenuity and create a similar system on these shores?


Some user reports are collected on this page:


http://www.automatikoelwechselsystem.de/files/Praxisberichte.pdf






#130257 - in reply to #130242
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Posted 9/1/2008 10:05 AM
tirkes
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Date registered: Sep 2007
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RE: 40K Mile Transmission Service

Hey guys, is there any benefit or harm from using a new ATF in 163 transfer case? Is 163 TC is the same as 164?

Wolfgang, can you post these specification lists? What oils are included in 236.12?

Thanks!
#130676 - in reply to #127493
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Posted 9/1/2008 10:55 AM
Wolfgang

Date registered: Dec 1899
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RE: 40K Mile Transmission Service

tirkes - 9/1/2008 7:05 AM

Hey guys, is there any benefit or harm from using a new ATF in 163 transfer case? Is 163 TC is the same as 164?

Wolfgang, can you post these specification lists? What oils are included in 236.12?

Thanks!


The 163 transfer case comes from a different supplier than the 164 transfer case.

Here's the list of 236.12 ATFs, from www.startekinfo.com






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#130680 - in reply to #130676
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