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-   -   Auto Powershift Gearbox Problem! V40 MPS6 Error P284B Shift (https://www.volvoforums.org.uk/showthread.php?t=298289)

kid n london Sep 4th, 2019 15:47

Auto Powershift Gearbox Problem! V40 MPS6 Error P284B Shift
 
Have anyone else had any serious problems with their Automatic Powershift gearbox?

After only 63900 miles my 2014 V40 is indicating “Transmission Reduced performance” (limp mode) and the TCM is indicating the trouble code P284B: Shift Fork 3 blocked/stuck.
An authorised Volvo Service changed Oil and filter in December at 51780 miles

I don’t understand how a gearbox can cause trouble so early. I’ve learned that the MPS6 gearboxes are among the worse on the market and comes from Ford. However I’m surprised that I can’t find many posts on the forum with similar issues (only one).

Anyone heard or have any experience?

Is this so serious so the gearbox has to be replaced? Or is it a reprogram of the TCM controller? Cleaning the indicators? The box have never felt bad or it doesn’t sound or feel bad when driving it in limp mode (gears 1-3).

Thanks

Tannaton Sep 8th, 2019 09:44

I believe Volvos policy is not to open up gearboxes, so a dealer is likely want to replace it entirely if the oil change/software updates don’t fix it.

There are transmission specialists out the who can overhaul it, might be better to ask for recommendations on a Ford forum?

Opinions are divided on this gearbox, but I think you’ve been very unlucky, most of the dealer mechanics will tell you the are usually reliable if looked after...

chr1s1 Jan 7th, 2022 00:20

Hi @kid n london,
What was the solution for you in the end? I'm having a similar problem, and hoping that I can avoid an entirely new gearbox!
Thanks.


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