R50 CVT Gearbox Issue - Over-revving at slow speeds

Results 1 to 3 of 3
  1. #1
    Theory Test Pass Wul100's Avatar
    Join Date
    Jan 2018
    Car
    Mrs S's 55 Plate Cooper CVT :-)
    Posts
    21
    Afternoon all - been a while!

    My wifes 2005 R50 Cooper has developed a wee "issue" with the CVT box. Around town / slow speeds [IE <30mph] it seems to not step up/down the range and instead leaves the car revving up about 4k rpm? Can't tell if this is a CVT or Throttle issue or both? Faster speeds there's no issue and makes no diff if in D or SD.

    Any thoughts?

    As a wee aside [sure I read it somewhere] is there any chance this could be linked to a weak battery at all? It hasn't done a lot of mileage this year and the battery isn't the strongest requiring a top up quite regularly now.

    Cheers :)

  2. #2
    Site Owner MINI William's Avatar
    Join Date
    Sep 2006
    Location
    Midlothian
    Car
    F56 JCW GP, R55 Clubvan
    Posts
    11,685
    I read a thread a few years ago with a similar issue (I’ll try and find it) and it was a battery related problem where the car wasn’t happy at lower speeds in stop start traffic but happy at higher speeds.

    Have you connected a code reader to see if there are any registered issues?
    Racing Grey F56 JCW GP 0370 - Chilli Red Mirror Caps, Custom OHC Alcantara Steering Wheel, Motech Performance By PiperCross Panel Filter, Custom GP Steering Wheel Spoke, Custom GP Stitched Carbon Side Scuttles, JCW Pro Mats, RSI C6 Carbonfibre Scoop, JCW Pro Stitched Carbon Boot Handle

    Ice Blue R55 Clubvan - JCW Shiftlight, JCW Carbon Fibe Handbrake, JCW Carbon Fibre Dash, JCW Steering Wheel, Recaro JCW Sportster CS, CoolerWorx ShortShifter, BC Racing Coilovers, JCW Brembo 4pots, HEL Braided Lines, JCW Front Bumper, MINI Challenge Splitter, White Rota Blitz

  3. #3
    Theory Test Pass Wul100's Avatar
    Join Date
    Jan 2018
    Car
    Mrs S's 55 Plate Cooper CVT :-)
    Posts
    21
    Quote Originally Posted by MINI William View Post
    I read a thread a few years ago with a similar issue (I’ll try and find it) and it was a battery related problem where the car wasn’t happy at lower speeds in stop start traffic but happy at higher speeds.

    Have you connected a code reader to see if there are any registered issues?
    Thanks William - alas don't have a code reader but glad I wasn't imagining the bit about the battery!

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Follow Us
About us
You'll find details of our packed social calendar including MINI Runs, organised car shows, meet-ups for munchies, and other social events. There's also a wealth of information on the three latest generations of the new MINI from BMW, including owners pictures, common fault fixes, "how-to's", owner reviews and a bucket load of advice for all new MINI owners. Whether you have one of the first MINI's from the early 2000's, a second generation R56, or are planning a purchase of a nice shiny new F series, whether your car is a MINI One, a Cooper, Cooper S, JCW or a GP, THIS is the web site for you!