I have a 2003 MINI (CVT, non-S), and I've been experiencing stutters with the engine in the following circumstances.

- When coming to a hard stop
- When shifting gears from reverse to drive

The entire car shakes a bit and the RPM fluctuates. Any idea what could cause this problem?

Thanks!

 

Could either be the transmission or your mounts. Have you had your transmission drained and refilled? When was the last time you did engine mounts? How many miles are on the vehicle?

 

The car has 87K on it. The engine mounts were replaced around 60K. I'll have to check when the transmission fluid was replaced. I know that I have replaced it at least once, when my CVT was serviced.

 

The shutter between shifting you described is it limited to the engine or the whole car? Does the whole car shudder like it had just been hit?

 

I'm not quite sure where it is originating (engine or the transmission), but it would shake the entire body.

 

I'm thinking its the transmission. If your lucky a drain and refill will save it. Worst case scenario you will need to decide how much you like your MINI.

 

Tough shot but it may need a driver save memory reset so the transmission can relearn for a short time and driver habits. It helped me on a little rpm drop kind of like yours but stopped the yo-yo effect from 5-10mph. Made my transmission work alot smoother and better when i did this simple reset.

Resetting the memory for it is in the display panel through the special menu from holding trip button and turning key to position 1, im sure u know? If not can please someone post link?

Hoped this helped!

 

Hi Tinythumb,
That sounds easy enough to give it a try!

Thanks!

 

Cool i hope so, it Will help, let me know then!

 

Did the ECS reset last night. So far so good, but I'll know more after a weekend of driving.

 

Yeah that reset will help, and sounds like it did! It did on mine hehe

 

If not try the ICM. Clean and refit.

 

Thanks. I'm not familiar with the ICM, but I'll look it up.

 

Cool man, seems like ur doing good.

Btw what is icm n a how to?