Auot box - lifetime?

[Fatskeleton]

its a dilemma to choose to do it or not. All I know is that after 100k they need it doing. The garage I use is a small Volvo independent place. The spannerman took my car out for a drive to see the condition of the gearchange before going ahead with the work. And it was touch and go in their opinion, but with the computer upgrades it just saved it. I also had the cambelt done as it was the original on 133k!!!

[NorthantsPete]

i guess the question is how much is it to repair

or replace


then have money to cover that

[Fatskeleton]

Originally Posted by NorthantsPete

i guess the question is how much is it to repair

or replace


then have money to cover that

£250 for flush and upgrade flash.
£4000 for new box.

[XC90Mk1]

Originally Posted by NorthantsPete

anything to report? I used the search function and get scared, and close the browser - too many reports of crap happening after even partial changs

Im tempted to run it until it dies

Its not hard. The AutoBOX has a Transmission Control Module (TCM). The TCM controls changes based on current condition and fluid service life etc.

The fault you discuss is when degraded worn fluid is discharged and new fluid with different charecteristics is replaced the TCM logs a fault as it cant cope with the change.

Your choices are 2 fold, use the method I described above or have it done at a dealer both are euqlly as vaild.

Via sump dump you will require 12l and via proper discharge and refil you will require around 8l. The only difference getting it done at a dealer is that they will reset the box adaptations and reset the fluid change counter both of which I can do but didnt see the need to.

Would imagine doing it yourself you would be looking at £60 and a few hours work (easy), doing it via a volvo dealer probably closer to £300 but instant.

End result is the same, what do you value more, your time or cash?

[XC90Mk1]

Originally Posted by NorthantsPete

introduce too many problems if i change it now?

no history of it being done before other than stamps in the book

No, you will b highly unlikly to have problems. Do however make sure you order a replacement fill plug o-ring, integrated level plug o-ring and drain plug aluminium gasket.

[PEGE63]

Had mine changed last week, just a dump and re-fill (think they used 6.5L) at the service and it was apparenly like tar. Will do another at next service. Mileage 112K.

[XC90Mk1]

Originally Posted by PEGE63

Had mine changed last week, just a dump and re-fill (think they used 6.5L) at the service and it was apparenly like tar. Will do another at next service. Mileage 112K.

That's the best way to do it. give the box a year to circulate fresh fluid, pick up all the old dirt then replace.

[Clan]

Originally Posted by NorthantsPete

so, my autobox is fine (or appears it is).

Its on 125k.

Do i do a drain and refill or are they best left alone?

I dont know if im supposed to be maintaining it or could mess it up.

At this milage its confusing the hell out of me.

cheers

how long ? anything from 60000 to 20 years .. I would certainly get the oil changed and the software updated too if it has not had a volvo service for years ...

[XC90Mk1]

Your auto box is not fine. It’s more than likely full of black burnt fluid blocking the valve block up and will probably not be fine in 50,000 miles.
Just pay a Volvo dealers to do it or do it yourself it’s not hard to dump dump.

Or give it a year or 2 to break down.

Goodness only knows what you will be like when you realise that you have an active on command clutch pack for the 4 wheel drive system which has a filter and fluid. Especially when you realise virtually all other applications which use identical AOC recommend changes every 30 or 40k!

That’s many hundreds of pounds if and when that fails which it probably will soon if you don’t change the filter and solution (£40 if you do it yourself!)

[Waynedance]

I did mine the flushing method to make sure all the old fluid was out. Used about 10 or 12 litres.