Thread: Disco 3/4 Automatic Transmission FAQ - 6 Speed

An interesting dilemma you have there. If the transmission is not slipping the oil change may delay the inevitable and you may not have problems in the future. The alternative would be to get the dealer to do the work and then you would have a documented transmission problem inside the warranty period that you could use in the event that a transmission replacement was needed in the future outside the warranty period.
Or you could buy an extended warranty and hope it would cover the cost of the transmission replacement should it be necessary.

FWIW I would probably go to the dealer with a sample of the oil and ask them what their approach to fixing the problem would be and document their response. Unless the box is slipping they probably will not even investigate further than saying that the transmission is sealed for life......

Regards,
Tote

Hey dk,

Took my truck back to LR again.....I'd had an interesting couple of weeks...

I'm one of the poor souls who had a naughty turbo on their 3.0L TD.....my car got split and the turbo was replaced.


Shortly afterwards I started having all sorts of erroneous faults that seemed to be of an electrical nature:

• A sharp cracking noise (like amplified static) coming through the car speakers...regardless of what was turned on or otherwise.
• My fuel guage stopped working for a few minutes.
• Headlights flickering in sympathy with the cracking noise.
• And finally an engine that cranked but wouldn't start.

I'd booked the car into LR to get these things and the transmission issue looked at (again). I assumed that the electrical issues were caused by something not being reconnected properly. By this stage I assumed the transmission had a mechanical issue.

It was the morning I was due to take the car in that it wouldn't start. It finally did after quite a few attempts.

Got a call from LR.....my battery was 'flat'....well sort of....didn't have the capacity to run all the 'stuff' properly, thus causing all the weird issues.

They'd also had a few bulletins regarding software patches that were needed to fix sound system static, a few other issues......and you guessed it....transmission issues!!!

The long and the short....new battery fitted (under warranty), patches downloaded ....and it's freakin awesome......

No more glitches and the transmission and engine are running like they were when new!

Get your car into LR mate......

Cheers,

Kev.

Does this fit our gearboxes?? ZF 6 Speed Automatic Ford Aston Martin & Jaguar ZF6HP26 Transmission Service kit | eBay

If so would seem to be a good buy.

Garry

According to the LR D4 brochure, the 2.7 is fitted with a ZF HP26.

The 3.0 are listed as ZF HP28.

Regards,

Les.

Originally Posted by garrycol

Does this fit our gearboxes?? ZF 6 Speed Automatic Ford Aston Martin & Jaguar ZF6HP26 Transmission Service kit | eBay

If so would seem to be a good buy.

Garry

HiGary,
Unfortunately to fit that pl;astic pan (IE it is the original one), you need to lift the engine off its mounts etc etc, hence the change to seperate filter and steel pan which only necessitates the undoing of the rear trans mount and lifyting trans uo against the floorpan in order to remove and refit. Saves about half a day!!!
Steel pan kit and filter with gasket etc are up to $440 but can be found for less by the looks of it.

JC
JC

Same seller has steel pan kit ...
ZF 6 Speed Automatic Range Rover ZF6HP26 Steel Sump Conversion Service Kit | eBay

Regards,

Les.

Originally Posted by outasight

Same seller has steel pan kit ...
ZF 6 Speed Automatic Range Rover ZF6HP26 Steel Sump Conversion Service Kit | eBay

Regards,

Les.

Thanks Les, may have to have a chat to my supplier then about prices, Or start getting customers to buy off ebay themselves and get me to fit them then!

JC

Thanks JC - misread the original ebay post to be the steel sump - second link by Les is still a good buy though. Interesting the seller is recommending a change at 60,000km instead of Landrovers 240,000km and indicates even ZF says a max of 100,000km - I wonder where Landrover gets their service interval from. Even talks about different oils - more information in an ebay ad than you get out of your dealer - maybe they need to have a read of the ad.

My car is coming up to 60,000 and I just intend to pull the drain plug and let as much oil as I can out and then refill (maybe 5 litres) to freshen the oil and at 96,000km get a full service and steel pan and get a megaflush done.

After that change 5 litres or so of oli every 24,000km and another full service and megaflush in another 96,000km.

Garry