Dazz360 wrote:

What's the best fluid for these auto boxes at a good price ?

gstuart wrote:

See this company are selling 10 x litres of mannol AG55 for £46 delivered

https://www.ebay.co.uk/itm/MANNOL-AG-55-10...0011.m1850

Also agree with the other guys , not hard to do the oil change urself

Reminds me I still got to do mine

kajtzu wrote:

Sounds like the ATF hasn’t been changed. I think there are at least three camps of thought:

1. Don’t do anything
2. Change filter, change ATF
3. Change ATF

There are also many camps of thought on how the change of ATF should be done:

A. Drop pan, new filter and pan, add until full again
B. Mega flush
C. Filo flush
D. A but several changes of oil to dilute

Myself I took option 3-B. Plenty of threads with differing opinions. Read some/all and form your own.

Also there are other places you might want to change fluids:

- coolant, change date; if you can’t tell the date it can be tested; change interval is 10 years
- brake fluid, change date; if uncertain, either change it since it’s supposed to be done every three years or test the boiling point
- rear diff
- front diff
- transfer box
- when was oil changed; oil/fuel/engine air/cabin air filters

Next the other stuff:

- when was AC last refilled with refrigerant
- brake hoses; change interval is 6 years
- auxiliary drive belts

You could get a maintenance sheet for the D3, try to determine what has been done and then attempt to determine what hasn’t been done and go from there.

Note I listed only the time interval, the maintenance sheet will also have the recommended mileage interval between changes. It’s ehichever comes first which matters.

Good luck.