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My X-Trail vibrates when slowing from about 80km/h to 60km/h and feels like it was in third gear when second was required...

My 2010 X-Trail with CVT vibrates when slowing from about 80km/h to 60km/h and feels like (if it were a manual gearbox) it was in third gear when second was required. The transmission has been serviced with apparently very little metal shavings found in the system. The vehicle has done 250,000km. Any suggestions?

It concerns me somewhat that any metal shavings were found in the oil when the gearbox was serviced. That said, some metallic `dust’ is part of the process of a transmission wearing, so it’s not necessarily the end of the world. In fact, this tiny debris is common enough that manufacturers actually often fit magnetic drain plugs to trap the particles and stop them being pumped through the transmission time and time again where they can do more damage.

I guess it all comes down to the size of the particles and whether a specialist transmission shop (which is your first port of call) thinks they are worth worrying about. But as rule of thumb (quite literally) if the particles are big enough to be picked up in your fingers or they feel sharp, then there’s something wrong inside that gearbox.

Metallic dust on its own is also less of a problem if there are no other symptoms. But you seem to think the behaviour and shift patterns of your transmission have changed recently (prompting you to have the unit serviced) and that really begins to sound like there’s something going on inside the transmission. Mind you, at the mileage you’ve quoted, that’s not really a surprise and plenty of CVTs have given up the ghost longer before 250,000km have been covered.

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