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Looking to change most fluids on my new (old) 2003 RR HSE. I dont know that much about cars but would rather learn than go to the $160/Hr Land rover dealer. If anyone has instruction on how to change the transmission fluids that would be awesome.

Thanks,
 

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Re: Newbi question: How to change the transmission fluid RR 2003

At the top right hand of your screen is a search button, try it.
 

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Re: Newbi question: How to change the transmission fluid RR 2003

axle said:
At the top right hand of your screen is a search button, try it.
Dont be a dipshit. Atleast he isnt asking more rim questions.

Google Rave and you wil find a link to it. Download it. Its the shop manual for your truck. It will have step by step guides to every repair on your truck.
 

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Re: Newbi question: How to change the transmission fluid RR 2003

How many km?
If over 100k may be you should not.
According to some specialists oil change is great at 50-60k.
After that oil starts to get thicker then you suddenly put thinner fluid there.
Problems may start afterwards.
 

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Re: Newbi question: How to change the transmission fluid RR 2003

But changing the fluid will also cure harsh shifting on higher milage Rovers. So idk about that. Im going to say changing the fluid wont harm anything. Someone that speaks German should give ZF a call and see what their engineers have to say
 

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Re: Newbi question: How to change the transmission fluid RR 2003

The official ZF repair manual for the 5HP24 states “The oil does not have to be changed until it has been in use 10 years”.

ZF’s latest LifeGuard fluid brochure states "Oil regeneration and oil filter change beyond 100,000 miles will have a positive effect on the service life ....." so they clearly recommend an oil (& filter) change late in the transmission's "lifetime"

Their latest ‘List of Lubricants’ (TE-ML11) includes the following statement (though they could probably do with getting another English translator) :

ZF 5 and 6-speed as well as the ZF 4HP20 automatic transmissions are filled maintenance-free with specially developed partially synthetic ATF oils. Maintenance-free fills are intended for normal operating conditions.

Especially driving at very high operating temperatures can result in accelerated aging or increased wear of ATF oils. It is recommended, in the event of severe operating conditions, such as :
- frequent highway driving in top speed range,
- offensive, sporty driving style,
- frequent trailer operation,
being above average, oil purification (oil change) on automatic transmissions is recommended between 80,000 km and 120,000 km, or 8 years, depending on the load.


Would anyone care to admit to having an ‘offensive, sporty driving style’? :D

Clearly they’re saying that if you do a lot of high speed driving, or hard driving, or towing (which causes the fluid to operate at elevated temperatures) they recommend a fluid change between 50,000 and 75,000 miles (or after 8 years).

Phil
 

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Re: Newbi question: How to change the transmission fluid RR 2003

I wouder if this applies to the P38 tranny?
 

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2010-2012 Range Rover MkIII / L322
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Re: Newbi question: How to change the transmission fluid RR 2003

Leo, I'm sure there is a number for ZF support in the US. There is one in the UK and they are excellent to deal with, call when they say they will call etc...

I know Land Rover design for an 8 year life. I thought it would be longer as so many of their previous creations are still running, but no. 8 years is life. :roll:

The other thing is that even the most lightly stocked dealership parts department carries the filter kits and lubricant. What does that say? :think:
 

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Re: Newbi question: How to change the transmission fluid RR 2003

I have changed trans oil and filter before, it was a messy job and i have been thinking of a way to do it better.

Two metal cooler lines that go from trans to transmission oil cooler, what if I get two short metal open-ended lines that quick-connect into factory clips (that normally attach directly to the transmission cooler), and dip one (passenger side return) into bucket with new oil, and the other (drivers side cooler feed) into another bucket to evacuate old oil? And do this while motor is at operating temp, and running? would this exchange majority of the fluid or would it just be a mixed mess of new and old oil?
 

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Re: Newbi question: How to change the transmission fluid RR 2003

I've just emptied the sump and refilled it to dilute the old oil. (Got about 6 litres out each time). Did this three times with a good run inbetween. Also changed the filter, cleaned the magnets etc.

For your flush to work, you'd need to have a pump sending new oil into the line from the bucket. The transmission pump will only pump into the bucket, its suction is not supplied directly from the other oil cooler line so it will only empty the sump in the gearbox and then pull air through..

Its a good idea in theory but I'd be inclined not to do it unless you can get a feed pump that has the same flow rate as your tranmission pump because it would have to balance outputs by venting or sucking through the breather.

You'd also need to remove the level plug to get the level right and if you were going to that extent, you'd defintely want to drop the sump off to clean the magnets/ fit a new filter.
 

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Re: Newbi question: How to change the transmission fluid RR 2003

I’m in complete agreement with DeltaC on this one. There is no suction on the ‘cooler-out’ side by which the fresh fluid would be drawn in. The fluid flow through the cooler pipes & cooler comes wholly from it being pushed through by the pump. The transmission pump flow incidentally is such that, even at tickover, it would take less than a minute to circulate the full fluid capacity of the transmission. Pump flow rate saturates at around 47 litres/minute at engine speeds above 2500rpm as the suction flow valve kicks in to minimise losses (diverting the excess flow back to the suction side of the pump).

Phil
 

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Re: Newbi question: How to change the transmission fluid RR 2003

Doctor Leo said:
But changing the fluid will also cure harsh shifting on higher milage Rovers. So idk about that. Im going to say changing the fluid wont harm anything. Someone that speaks German should give ZF a call and see what their engineers have to say
I have a contact at ZF (UK) [email protected] (Paul Loomes)
 

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Re: Newbi question: How to change the transmission fluid RR 2003

understood, thanks delta and phil
 

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Re: Newbi question: How to change the transmission fluid RR 2003

kinggillen said:
Looking to change most fluids on my new (old) 2003 RR HSE. I dont know that much about cars but would rather learn than go to the $160/Hr Land rover dealer. If anyone has instruction on how to change the transmission fluids that would be awesome.

Thanks,
An alternative (which I did at about 90,000 km) would be to take the Range into an automotive transmission specialty shop. They have the experience of working with these Zf transmissions, ( also found on Audis and BMWs and some other German cars) and would have lower labour rates than the dealer and probably would have a cheaper supply of the correct ATF under a ZF or BMW brand name.

When they did my transmission they had trouble lowering the pan because some of the bolts were badly corroded from Ontario use of road salt.
Besides Rave, there are several threads on this forum with descriptions of people's experiences doing it themselves.
 

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Re: Newbi question: How to change the transmission fluid RR 2003

I played with it today a little. Tested radiator for stoppage, and it was barely leaking any coolant out the bottom/ with drain unscrewed :oops:
That was most likely cause for Trans Overheating issues. Removed radiator in 20 min (thanks RSW solutions for Youtube tutorial!) and flushed it out with hose, then blew out lower openings with compressed air, and after a while was able to get good flow to the bottom rows. Then I shot some compressed air into the transmission cooler (water passages), and they were clean and wide open. Threw new heated thermostat in there while it was accessible (Behr / $65). Didnt have any G48 handy, so i filled it with water while it was running, and then added some Cascade dishwasher detergent (no suds). Ran to VW dealer and got some coolant, back home, flushed out the system (which removed more silica deposits) and filled with G48. Drove around all day, highway, stop-go, let it idle outside garage for 45 min, no errors, no leaks, nice and cool, transmission shifts smooth. Gotta change trans oil next
 

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Re: Newbi question: How to change the transmission fluid RR 2003

Doctor Leo said:
axle said:
At the top right hand of your screen is a search button, try it.
Dont be a dipshit. Atleast he isnt asking more rim questions.

Google Rave and you wil find a link to it. Download it. Its the shop manual for your truck. It will have step by step guides to every repair on your truck.
LOL... you mean you don't like the ultra interesting and uber-technical "rim questions"!?!?!?! :lol:
 

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Re: Newbi question: How to change the transmission fluid RR 2003

DeltaC said:
I've just emptied the sump and refilled it to dilute the old oil. (Got about 6 litres out each time). Did this three times with a good run inbetween. Also changed the filter, cleaned the magnets etc.
Did you replace the filter after the first drain (to remove a bit more of the old fluid the first time around) or after the final drain?
 

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Re: Newbi question: How to change the transmission fluid RR 2003

I removed the filter the first time round. I'm going to run it for a few hundred miles and then do the whole lot one last time - fluid, filter, magnets etc. Basically because I've not seen significantly clean(er) fluid coming out yet.
 

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Re: Newbi question: How to change the transmission fluid RR 2003

Im keen to change my ATF fluid in ZF box, can I ask what brand oil your using?
 

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Re: Newbi question: How to change the transmission fluid RR 2003

Use only OEM spec Esso LT71141 - but don't buy it from a dealer.
Transmissions have come a long ways since nearly all manufacturers just spec'd Dexron II.
 
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