No real downside to waiting.
I am a real fan of changing the oil; also the change to a metal pan is a good idea, but in Canada, not as easy to actually get done as in Australia.
I am a little puzzled as to how your independent determined the tranny oil was black unless they undid one of the plugs as there is no dipstick like a "normal" automatic transmission. The oil probably should be black and I assumed it smelled OK - that is my test of trouble or not. The real education is when the plastic pan is pulled and one examines the metal filing goo clinging to the two magnets. On mine, it was sort of a thick paste on both magnets, but fortunately, no chunks.
Nothing bad should happen in then next 5,000 km as I assume that will happen in less than six months so three more months or so on the factory oil should be no big deal. If it is, then may your tranny fail quickly please.
When I did my oil change at about 130,000 km, (five years), the fuel mileage improved about 2 litres/100 km on my 4.4 litre V8 petrol engine.
As such, I will get the cost of the oil change back within a year in saved fuel costs. I also got improved acceleration and the shifting remained good - it was smooth before I might add; hence my surprise when the fuel economy improved as all seemed well.
The link below is to a number of files I have collected re the ZF6HP26X tranny that is on our 3's.
DISCO3.CO.UK Photo Gallery - ZF 6HP26 Automatic Transmission in LR3
So the good news is......
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......:D
Cheers,
Kev.
Jaguar Gearbox Service Kit
