R52 CVT Jumps when put into Drive

[trig748]

Hi
Have recently bought a 2007 R52 Mini CVT (42000 Miles) with the same sort of problem. Only 'jumps' when cold when put into D. No problem going into R. If the car is left a couple of minutes to warm up, it does not jump.

Service sheets show a new battery, ECU software update and gearbox values reset 11-2014.

I can't see any evidence of an oil change at any time during the life of the car. So I have started with an oil change at a gearbox specialists at £110. They have also changed the oil filter. What oil filter?!? I haven't found any detail of a filter anywhere. Are they correct?

The car still has the same issue. The specialist suggested checking for error codes, update of ECU and also something about 'adaption'?

I found this comment, probably on this forum:
After starting, wait about ten seconds for the engine to warm and the fuel primer to set. Then, after backing up (if you do) wait a couple seconds after shifting into Drive before hitting the gas. After about thirty seconds or so of driving, the tendency to jerk should disappear. Everyone has their own "magic ritual" that they do for this, so give it a shot!

So should I be concerned for the welfare of the gearbox and pursue a cure (how?) or just live with it?

Thanks

[Dr Interceptor]

The 'jerk' going into Drive is a common quirk, and is more pronounced in cold weather, and when the CVT fluid is cold. I wouldn't worry too much.

You've done the right think by having the fluid changed, every 25k miles is ideal and will prolong the life of the box.

There were some electronic updates for the CVT box which improved its smoothness, but this was mainly for changes between 1st and 2nd ratio at low speeds around town, either way it sounds like yours has the latest software.

I would expect the 'jerk' to improve slightly come the Spring, once temps don't dip down to freezing overnight.

[trig748]

Thanks very much for your feed back which is in line with below;

I spoke to Mini in Chelmsford and they state:
The issue I have with selecting D when car is cold is normal and caused by cold oil causing stiction between the drive clutch plates. I get the same thing with old motorcycle clutches which I 'free off' before kick starting.
The only time the car will need an ECU software reset is if some kind of repair is done.
The only time the gearbox Adaptions need to be reset is if a repair has been done and the car is setting its gearbox values as it is being run.
I know that sounds a bit sketchy and it is my interpretation after a quick phone call but it has put my mind at ease!

I have found out that the CVT does have an oil filter and that Mini are not doing ECU software updates on this model any more.

Hope this helps anyone else with the same issue.

[Dr Interceptor]

Yeah there won't be any more software updates, the CVT gearbox was discontinued in 2008 with the demise of the R52.

The R56/R57 based 2nd gen cars don't use a CVT auto.