Transmission Control Module Repairs - BMW Mini ONE

BMW Mini 1999 – 2006 R50 / R52 CVT Transmission Controller TCU / TCM Problems & Repairs

Transmission Control Module Repairs - BMW Mini ONEBMW Mini TCU / TCM Problems & Repairs
The BMW Mini from 1999 – 2006 (R50 / R52) was fitted with a Motorola TCU (Transmission Control Unit), also known as a TCM (Transmission Control Module). It is fitted to automatic models with the Continuously Variable Transmission (CVT).

The TCU / TCM is a very common failing part and can be very expensive to replace. Replacement units will require coding to your vehicle and come with a limited warranty – typically between 30 days and 12 months.

There are many problems associated with this type of transmission control module but the most common fault is the vehicle “jumping” into gear or not selecting the right gear. This will occur more often on a cold morning or whilst the engine is still cold.

Common Transmission Control Module Faults:

  • Not selecting correct gear (especially when cold)
  • Not going into gear at all
  • Rough gear changes
  • Warning lights on dash
  • No communication faults

Our TCU / TCM Rebuild Service
We are able to fully test & repair all types of TCU / TCM units. When rebuilding the Mini transmission modules we use new genuine OEM components to ensure that each rebuilt part will meet & exceed OE specifications. A rebuilt transmission control module (Gearbox ECU) from us will come with a Lifetime warranty and will not require any programming when being fitted back to the vehicle. The unit will be fully plug & play. We’re offering a fast, efficient & affordable repair service as an alternative solution to having the module replaced for a new expensive part. We also offer a professional fitting service if required.

Comments(32)

  1. Joseph Beasley 17 January 2024

    i have 2006 mini CVT transmission that wont shift from first Gear. revs high then EP shows on the cluster. could this be the TCM/TCU?

  2. Kory 12 May 2020

    I have an 08 mini cooper cvt trans. Had the TCM replaced with a new one, then had the ECU sent out and fixed. ECU is good, TCM still, will NOT communicate, thoughts?

  3. andy Bushell 8 April 2020

    Hi ive got a 2005 r53s with auto box problems
    Where are you based please? And whats the cost of the gear box ecu repair
    Thanks andy

  4. wil Lopez 2 April 2020

    hello, i own 2006 MIni cooper havin problems with the cvt
    starts find drive for about ten minutes and down shift and engine accelerate and stays in one gear, i have a guy checked with a scanner and said that is no comunication with the cvt, i use a different ecu and engine didnt accelerate but shifting is delayed, would you will be a able to check my ecu and how much it will cost for the test , and how much if in case it needs to be rebuilt.

  5. Edward beacro 17 March 2020

    Email is all lower case
    Hi what is the price of a ecu or do you fix the one on the car
    Thanks eddie

  6. alan beach 16 February 2020

    jumps out of gear sometimes

  7. Douglas Owens 11 February 2020

    I have 2007 mini r52 with p1611 serial Communication loss is it a common problem

  8. Craig Stirling 8 February 2020

    I have an 06 MCS and getting a AISIN TCU OBD relevant fault and KOMBI fault in transmission management. Can I get some information on repair? Thanks

  9. paul stone 5 February 2020

    HI I HAVE A MINI COOPER S AUTOMATIC WICH WILL EVERY COUPLE OF DAY WILL DROP OUT OF DRIVE.I PULL OVER SWITCH OFF THEN START AGAIN AND ITS FINE .THE OTHER DAY DONE IT AGAIN AND THIS TIME EML LIGHT CAME ON.PLUGGED IT IN CAME UP WITH PO700 TCM UNIT HOW MUCH WOULD YOU CHARGE TO INSTALL REPLACEMENT ITS R52 MODOLE

  10. Gwinyayi Musuka 30 January 2020

    Mini R50 auto cvt gear box has p1611 DTC and showing mil lights judders in drive when cold

  11. Mahmuod kames 22 April 2019

    لدي ميني كوبر .
    ولقد عانيت من كود EP على لوحة القيادة إلى جانب ضوء محرك فحص ومراجعات RPM عالية جدًا.
    يبدو أن جهاز ميني كوبر S الخاص بي لم يكن يتحول عن السرعة الأولى أو الثانية.
    تعاني من زيادة الدورات في نطاق 5 إلى 6000.
    يمكن حل مشاكل

  12. Rich Firth 4 April 2019

    2004 R50; no comm with TCU, No obvious wire damage, Gear Selector Module is functional; Sport Mode Inoperative…Crawls up to speed in First, shifts into second. Step down switch functions, but leaves car stuck in one gear until roll down to a stop.

  13. John 19 February 2019

    Hi,

    I have a 2007 Mini Cooper S Chile Convertible autotransmission. The car starts and revs but when shifted to dr forward or reverse drive, the car wont move. Is it a TCM problem?

  14. Jemal 24 January 2019

    Hi, I have R50, sometimes vehicle doesn’t shift gear atall, can’t drive more than 30km, check engine and elm error comes up on dashboard, when I reset come it helps for a while than the error comes again. When diagnosed by obd can’t access gearbox computer parameters are showen 0. What could be the problem?

  15. Jesse 24 April 2018

    Hi i just bought an 04 mini cooper. It stays on 1st gear.i scanned the car And it has a code p1611 serial communic link transm control module

  16. Joey 11 April 2018

    02 mini cooper no communication with tcm will not go into drive will go in reverse.occasionally will go into drive and works good after key off no drive again all started after battery was replaced

  17. Nik Xidakks 28 January 2018

    2011 Mini cooper Auto, R56, keeps sticking in park.( After a manual release limp mode.) It has been suggested control module.

  18. Brian Bernhardt 25 January 2018

    I have 2005 Mini Cooper 1.6 not a S model that is stuck in Limp Mode (6th GearOnly) error code comes up P1787 .

    One Mechanic tells me its the Catalytic Convertor? Any suggestions

  19. John 2 December 2017

    HI,
    DO YOU DO BMW 7 series 730 2008-10 TRANSMISSIONS CONTROL MODULE TCM WHILW MY HAVE HAVE TURBINE SPEED SENOSOR FAULTY.

  20. Carlos 17 November 2017

    I have a 2006 Mini Coooper S and am being tols by the dea service center that ther may be a “short ” in the TranS Controller Module. Causing engine lights to turn on . Shifts ok up to 55MPH then stays stuck and doesnt shift. Revs hig at 400 RPM +. Can you help with possible solution. You say there is no need to program and have the to re learn? This is a plug N Play solution?
    What is the price of replacement unit ?
    thanks
    Carlos

  21. Tracey cooper 15 October 2017

    Hi i hsve a mini cooper s 2006 with tcu fault. Can u repair and what would be the cost please. I am in paignton devon

  22. catalin nica 3 January 2017

    You repair TCU/TCM for bmw F10 2011 520d gearbox GA8HP45Z
    8hp??? Thanks

  23. Darren 5 October 2016

    Looking for your price To rebuild/repair tcm for r50 2003 cooper base. The car is currently stuck in eP mode and showing fault code p1611 (serial comm link trans control module). I believe the ECM is working. Thanks

  24. Melissa 15 August 2016

    Hello can you Give me give me an idea of the cost to rrplace cvt transmission on 2007 Mini cooper sidewalk?
    Thank you

  25. Cathy 29 May 2016

    As above with the mini sport 2006 jumping. Can you send further info please

  26. Daniel armson 28 May 2016

    Hi i have 2001 mini the symptoms im experiencing are ep showing in the display after A few miles driving, sluggish gear change And unsble to select gears manualy fault, codes state vehicle speed output speed signal out of range and transmision ecu controling malfunction, do you think this is fault you can fix? Thanks
    Dan

  27. Stuart du Casse 17 May 2016

    Hi
    Is there a benchmark figure for fixing an 06 Mini Cooper S auto transmission? I’m going to look at one for my wife on saturday. I’d like to factor the cost of this in. Years ago she had a similar problem with a CVT transmission in a Nissan Micra, so i kind of know what I’m looking at and the symptoms whereby it doesn’t go into drive.

    Regards
    Stuart

  28. Billy 30 April 2016

    2006 mini with cvt, slow to change up and changes down Rapidly when slowing down, engine Reving high unless you put foot hard down. Operates fine above 35mph.

  29. robin 20 January 2016

    mini S6 WNS
    Fault intermittant changing to 1st at 30mph+ when this happens gear indicated using scanner live data is 1st gear.
    Fault codes output speed sensor and tcm fault. when fault is evident no output from speed sensor, changing sensor didnt cure fault.
    HELP!!

  30. john vinton 27 December 2015

    i have a 2003 mini cooper, had trouble with gearbox shifting into e p mode. changed gear selector for another 2nh one seems in good condition. it worked fine in D mode but would not reconize S D mode i then put the old gear select scanner into the new one and it worked ok! for about 20 min until i put it into s d it would work ok until i wanted to manually change
    a gear it would work fine for a short while and then it wouLd go back into E P MODE. take it out s d and it would in time go back to d mode . and then if you left it long enough it would not show any control lights at al all.(all over the place) could you please give me and idea of cost for replacement parts if you think they are needed. your info much appreciated john vinton

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