XC70: Gearbox Auto Transmission Fluid Change

[tt82]

We've just bought an 07 C70 D5 for my mother. It's on 115k and had bad shifting but after doing an ATF change, it's now much better. We're doing another tomorrow to get rid of any gunk that the new fluid may have dislodged. Ask Volvo how long their goodwill offer stands for and see if a ATF change helps first!

[RM955I]

https://www.youtube.com/watch?v=o690DovjDAc

[luggsey]

Originally Posted by tt82

We've just bought an 07 C70 D5 for my mother. It's on 115k and had bad shifting but after doing an ATF change, it's now much better. We're doing another tomorrow to get rid of any gunk that the new fluid may have dislodged. Ask Volvo how long their goodwill offer stands for and see if a ATF change helps first!

I'll be interested to find out the mileage between changes and the colour of the oil?
I did mine last summer and I just got another 20l from Germany to do it again for the same reason.

[Kaygeee]

Originally Posted by Kaygeee

I have been told by Volvo that my car needs a new gearbox - quoted over £5K for the job although did agree to 20% "goodwill" gesture towards this. Car has done 91K mainly motorway miles and I have had since 28K - purchased from a Volvo main dealer and always serviced/repaired there. Have spent many £000's over the years!

Now to the point, I am having difficulty in understanding why the gearbox should fail at this mileage - particularly as I believe it has received fairly light use because of the large number of miles driven on motorways.

I came across comments on this forum which seem to say Volvo recommend a gearbox oil changes although this has never been recommended to me. These problems only start when car is warmed up and symptoms of failure are:

-rough gear changes, particularly between 2nd and 3rd gear
-a little bit of what I believe is called "flaring up" - like clutch slipping although this has only happened a couple of times
-problems when in auto and manual mode

Any ideas would be appreciated. I believe the gearbox is the AW50/55 and it is 5 speed.

Thanks.

Kaygeee

**UPDATE** - tried a couple of local garages who say they are "Volvo Experts" but both have told me a new gearbox is required (without even checking the symptoms). I forgot to mention earlier that I have no fault codes showing either in the car (or on Volvo main dealer computer).

I did have to get towed home by the RAC just before Christmas when the car just stopped. RAC computer when plugged in showed

System Type: GEARBOX
Name: GEARBOX - DIAGNOSIS
DTC: E000,Communication control module

and

System Type: BRAKES
Name: ANTI-LOCK BRAKING SYSTEM - CONTROL UNIT BRAKE SYSTEM
DTC: 0115,SWM (Steering Wheel Module)
DTC: 0100,Engine control unit
DTC: E003,Control module
DTC: 0097,Control unit central electronic (CEM)
System Type: STEERING
Name: POWER STEERING - ELECTRICAL POWER STEERING
DTC: 0080,Steering angle sensor, incorrect signal
DTC: E003,Module Configuration Failure
DTC: E000,(CAN) and (ECU) communications failure
DTC: 0082,Engine status, incorrect signal
System Type: IMMOBILISER
Name: IMMOBILISER - DIAGNOSE (CEM)
DTC: E000,control unit
DTC: DE49,SWM (Steering Wheel Module)
DTC: DF17,CAN-L, high speed n

The only problem turned out to be part of the wiring loom that had touched the radiator and melted through the insulation!

Now have a quote for recon gearbox about £2k but not sure it's worth spending that sort of money?

Anyone got any ideas?

How much do you think I could get selling the car as it is. It is a Volvo C70, 2006 D5 SE LUX Geartronic Celestial Blue. Has winter pack and full Volvo service history. Dynaudio sound and power front seats with memory. Bodywork in good condition and four decent tyres.

Thanks.

[Simon Jones]

Originally Posted by Kaygeee

I did have to get towed home by the RAC just before Christmas when the car just stopped.

Presumably the front wheels were lifted off the road when being recovered? Automatic gearboxes are quite fussy when it comes to being towed.

[Kaygeee]

Yes they were, than ks.

[Tatsfield]

Have you tried changing the ATF. It may be a forlorn hope but compared with the costs you are expecting, it wouldn't be too much money to gamble to see if a series of oil changes would improve the operation of the box. Three gearbox "sump dumps" with a couple of hundred miles between each would change most of the fluid and then you could re-judge the situation.

[Neilmathews]

Hi, following applying an old excellent post on auto fluid change...transformed my box changes so much smoother...a remaining question. Does the xc70 2007 6 speed auto box have a serviceable filter?

[Bonefishblues]

Originally Posted by Neilmathews

Hi, following applying an old excellent post on auto fluid change...transformed my box changes so much smoother...a remaining question. Does the xc70 2007 6 speed auto box have a serviceable filter?

It has one, but it's effectively unserviceable as it's buried in the bowels of the torque converter IIRC

[Simmy]

Originally Posted by Neilmathews

Hi, following applying an old excellent post on auto fluid change...transformed my box changes so much smoother...a remaining question. Does the xc70 2007 6 speed auto box have a serviceable filter?

only the powershift gearbox has replaceable filter at intervals of 50k