Thread: Disco 3 transmission issues

Originally Posted by ~Rich~

Hi Disco-------,
A few other answers will help:
How many kms has the car done?
Has the auto been serviced?
If so how often?

The auto should really be serviced every 50,000 - 60,000 k to prolong it's life.
If it had it's first change over 100,000 then some damage will have already been done to it, even if you then had it serviced every 50,000 there after.

What should you do?
Get the auto serviced and flushed is the first thing.
If you have shudder get them to add Dr Tranny as per here:
Dr Tranny for Auto Shudder fix

If all else fails then you will need to recondition the auto.

Mine had the variation in revs too, some shudder and also a PO741 fault code recorded - Torque Converter Clutch solenoid stuck off or faulty.
Nearing the point where I decided to have the rebuild done I had a weird occasion that the box threw up a transmission fault which meant the auto was fine at 100 / 110kph doing approx 2100 revs on the flat then uphill the revs would go up to 3200 revs without changing gear! Slippage
Then downhill the gearbox would disengage resulting in revs being on idle speed!
Weird.

Get my D3 back this week after Toll lost my gearbox for 5 days

Rich

Hey Rich - I know it’s and old thread but I’ve just picked up a 2005 D3 TDV6 and have the same issue as you described - What was the problem?

Thanks

Sounds to be the TC to me.

Mine was doing that, did a triple flush with LG6.
Replaced the 3 seals on top of the mechatronics and also the pump bridge seal and electrical connector seal.

Then added 2 tubes of Dr tranny.

Its still working reasonably well for 261,000 KM