Can anyone tell me which of these is my TD6 transmission fill hole.

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In your first photo it is the one to the right (rear) of where you have the socket. It should be a 14mm allen key (hex key). Not much clearance between it and the subframe.


I made up one like this cutting the end off a 14mm allen key and using a 14mm socket https://www.amazon.co.uk/Teng-M121514c-Soc...B0001P0WMK

Don't forget to have the engine running when you remove it. Otherwise it's a sleeve full of transmission fluid.

PS. It might be the angle of your photo that makes the socket look further forward than it is. John
2008 Stornoway Grey 3.6 Tdv8 Vogue - SOLD
2005 TD6 Java Black Vogue - Written off!!
GAP iiD BT-Sold

Thanks Weegie but the hex hole to the right of my socket is just a round void. Its part of the casing. Nothing to be moved there. I know its hard to judge in the photos and I did doyble check when I saw your post.

Im going to go with my gut and try the hex nut  2002 TD6 Epsom Green

Yes, the workshop manual suggests it should be where the ‘round void’ is on your transmission casing but it looks like yours is an earlier design or something and they subsequently relocated it.

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Thanks Phil. Im currently struggling to get it undone. I think they relocated it because there is no room to get good purchase on it. Spanners are slipping off it because they are at an awkward angle and there isnt room for a socket as the driveshaft is in the way. Im going to have to get creative here. Nut is close to rounding off.  2002 TD6 Epsom Green

Hope you finally managed to get the plug out.

I notice that the ATSG manual for the 5L40-E suggests that the filler/level plug position is a petrol vs. diesel thing (which obviously doesn’t make sense for your vehicle)

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Ahh, that might explain it!

The number 4 says it’s a 2004MY transmission
The G just means it’s a 5L40 model (it would be a letter Z for the 5L50)
The YZ says your transmission (or the casing, at least) is from a petrol 3.0i BMW X5, which would explain why your filler plug is where it is

Phil

Thanks for that Phil. I knew myself there was something odd about it. Nice to know where I stand now and what all those letters mean.

I take it the transmission oil will be the same between the two.? 2002 TD6 Epsom Green

Over the years the fluid requirement for the 5L40-E changed from Dexron III to Texaco Texamatic 7045E to Texaco ETL 8072B and finally to Dexron VI - the Dexron III specification having been retired in 2006. Unfortunately we don’t have the facts as to what the differences are between them (some argued that the fluid formulation was being changed as part of a continuous development to try to reduce the valve block wear problems). But to answer your question, as far as I know, Land Rover are still recommending the use of 7045E in the TD6 transmission.

Phil