BMW 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.
Ajaz is a seasoned automotive electronics engineer with deep expertise in remanufacturing vehicle electronics. He has developed skills in all areas of the automotive field, from rebuilding hydraulic steering components, and mechanical gearboxes and reworking intricate vehicle electronics. Ajaz also acquired Bodyteq, a London-based vehicle bodyshop where he has developed extensive knowledge in automotive refinishing.
Alongside his automotive career, Ajaz has built a career in the IT industry, gaining accredited certification as an AWS Certified Cloud Practitioner, Cloud Architect, and Search Engine Optimisation (SEO) specialist.
Mini R50 auto cvt gear box has p1611 DTC and showing mil lights judders in drive when cold
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
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
I have 2007 mini r52 with p1611 serial Communication loss is it a common problem
jumps out of gear sometimes
Email is all lower case
Hi what is the price of a ecu or do you fix the one on the car
Thanks eddie
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.
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
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?
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?