Gearbox Service

**wayneg** · 2nd February 2011, 06:08 PM

I am planning on a fluid, filter a sump gasket change on the Auto box. Something I have never in my life done on any car. Have read all the usual threads on various sites and cant get how much fluid I can get out and thus replace.
Mine is the later type with no dipstick. The only figure I have got is 5ltrs that Paulp38a used is that right.
I will be doing this on my back on the floor so any tips tricks or warnings please feel free to help me get my head round whats involved.

**Hoges** · 2nd February 2011, 06:35 PM

Did you see the extensive write up on Range Rovers on this topic? It's most informative. Good luck!!

**wayneg** · 2nd February 2011, 07:18 PM

Yes reading that gave me the incentive to DIY. Was going to take it to a gearbox place but as it seems relativly easy and my wish to do all I can will prevail Still cant get why it holds 10 litres buy only half can be changed

**Junosi** · 2nd February 2011, 07:35 PM

I did mine about 6 months ago - filter and oil. Was pretty painless and not difficult. Was much easier than doing the same job on my old discovery. Can't recall how much oil I used - but 5 litres (or less) sounds about right. I do remember buying two containers of oil and only using one. Mine has a dipstick

mike 90 RR · 3rd February 2011, 10:38 AM

Originally Posted by wayneg

Still cant get why it holds 10 litres buy only half can be changed

Wayne
The gearbox has 2 parts
1 is the gearbox ... The other is the Torque converter
Both act as separate vessels (containers) for holding the oil

When you drop the oil pan of the box ... all your changing (dropping) is the oil that the gearbox holds ....

For the final level .... (You will have to research it) .... but I think you will find it is "fill to the level of the bung hole" (filler hole) on the side of the box, where the dip stick tube use to be on previous models

To figure out how much oil to use ..... drop and collect the oil in a clean tray
Grab an old oil container and fill it up .... Oil containers usually have a clear line and litre amount written on the side of them .... other way is, buy a cheap plastic food measuring container and just record it

Cheers
Mike

**glenhendry** · 3rd February 2011, 11:08 AM

I can confirm that when I dropped the ATF out of my 2000 HSE Auto last weekend that only 5 litres went back in. So buying two 5 litre bottles was a waste.

Dont forget that after you fill it until it starts to run out of the filler hole, you have to partially screw the filler plug back in and turn the engine on and run through the gears and complete the fill while engine is idling. I have the forearm burns from the exhaust pipes to prove it.

Absolutely buy a plastic pump that screws onto the new bottle of ATF from supercheap or similar for <$10. They work magic. And some turps to clean it up after.

Lots of rags and carboard boxes for the garage floor, and consider doing the TC at the same time, it uses the same fluid/tools.

My gearbox used allen screws, 8mm for the filler bung and 6mm for the drain bung I think.

**wayneg** · 28th March 2011, 06:46 PM

Did the service today , All straightforward, no burns on arms and 5 litres of oil was enough.
The Old oil looked nasty brown and the magnet had 2 to 3mm of metalic slime attached.
As I have no service record is this the norm for a regularly serviced auto or does this indicate an extended period since the last ( if ever ) change. The orange oil seal on the old filter pickup broke up on removal.

**Blknight.aus** · 28th March 2011, 08:10 PM

now change the oil again and I bet that it comes out the same icky colour the first lot did.

**wayneg** · 28th March 2011, 08:59 PM

do you think its necessary?

**Blknight.aus** · 28th March 2011, 09:34 PM

yep...

all told the ZF takes about 10l when its running because most of the oil is in the TC and the cooler. if youve only put in 5l then you've only changed half the oil.

if the oil was shot then all youve really done is contaminated your new oil with the old stuff and if the old stuff was shot.......

if you're going to do "progressive" oil changes on the auto then you do the change every 12 months if your going to do full flush and filter then you only need to do it every 50K Km or so. There's advantages and disadvantages to both methods.

Thread: Gearbox Service

Thread Tools

Gearbox Service

Bookmarks

Bookmarks

Posting Permissions