Mini Cooper CVT Transmission Problems

2 TRANSMISSION REPLACED, GEE 1: USED,2: NEW3;REBUILT.
MOST USED BOXES ARE NO GOOD , SORRY BUT NOT GOOD.

NO CAR TOLD AND NONE ARE SOLD USA. HERE.
THIS IS WHAT I SEE. (JUST NO CAR TOLD)
SO SCANNING THE PCM(TCM) IS TO HARD? SCAN IT.!!!!!!
THE SHIFTER IS PRNDL,
SOME Y12 DID HAVE CVT BOX
YOU POSTED NO MODEL CAR AND THEN POSTED Y12
AND Y12 SERIES HAD 2 BOXES YOU FAILED TO TELL.
NO TOLD WHAT ENGINE YOU HAVE, OR YEAR???????????
4-speed E-ATx automatic (1.2/1.6 L)
JATCO XTRONIC CVT-M6 (1.5/1.8 L)

GENERIC NORMAL NOT CVT HORROR BOX ANSWER.

SO THERE ARE 3 SELECTIONS (ALL 3 FAIL) NOT TOLD THIS.
LOW,
REVERSE
AND DRIVE
SO ALL THOSE ARE STUCK ON FORWARD 1ST GEAR????
NOT TOLD THAT,
BUT IF IS TRUE THEN THE SHIFT LINKAGE ON THIS CAR IS BAD
BECAUSE REVERSE MUST WORK.AND REV MUST NOT MOVE CAR FORWARD , IF DOES SAY SO.

A/T BOXES ARE COMPLEX. AND SO 'ARE ALL TESTS DONE CORRECTLY.
THE SERVICE MANUAL IF YOU READ IT HAS ALL THE ON CAR CHECKS TO DO MY GUESS 2005 YEAR CAR.
Y12 BOX.
FLUID LEVELS GOOD, NOT LOOK LIKE TAR OR STINKS BURNT.
and dip stick ATF fluid to white paper not full of metal shinny dust? for sure seen on CVT box bad.

ENGINE IS NOT WEAK. (50 WAYS FOR ENGINES TOP FAIL AND BE WEAK OR DEAD) THE PCM (TCM) ONLY UPSHIFT IF ENGINE LOAD AND RPM AND ROAD SPEED ALLOW IT TO DO THAT)
IT IS PURELY ELECTRONICALLY SHIFTED, 1,2,3,4 UP
THE STALL TEST.
IN DRIVE OR IN LOW.
DO THE STALL TESTS, PER THE MANUAL
MY GUESS IS DOING THIS TEST ON CVT IS (NOT WISE)
CLASSIC SIMPLE TEST . A 3 TO 5 SECOND TEST MAX.
HAND BRAKE SET, HARD,
CAR POINTED IN A SAFE DIRECTION, NO KIDS THERE ?
NO CLIFFS (GRIN)
FOOT ON FLOOR BRAKE HARD.PRESSED AND HELD.

ENGINE RUNNING STOMP ON THE THROTTLE PEDAL
IN DRIVE.
HARD SEE RPM RISE, CAR WANTS TO MOVE, AND MAY HIT 3000 TO 3500 RPM THIS THE TC CLUTCH SLIPPING NOW.
AND IS PASSING THIS NOW.
END CLASSIC A/T TEST.

AND THE TC WILL GET HOT SO END THE TEST AT 3 SECONDS
THIS PROVES (MOSTLy ) ENGINE IS NOT WEAK.
IT DOES NO PROVE ROAD SPEED SENSORS WORK,
SCANNING THE PCM LEARNS THAT BUT FAILED TO DO SO)


AND PROVES CLUTCHES TC MAIN AND INSIDE FIRST GEAR CLUTCHES NOT BAD OR HUGE SLIPPING AND RPM GOES WILD TO 5000 RPM AND IF DOES ABORT THE TEST.

THIS IS ALL STANDARD TEST. ON ALL CARS A/T, NO NOT SURE ME ANY CVT BOX. (ID NEVER BUY ONE)

FUSES GOOD CABLES AND CONNECTORS GOOD
REVERSE WORKS AND

END WILD GUESS WHAT TRANSMISSION IS THERE
NO MODEL CAR, ir is a VAN
NO ENGINE TOLD
NO COUNTRY TOLD
NO TRANSMISSION MODEL TOld
not old is 2nd or3rd used, new or rebuilt wow not one clue.
NO Year car told 2005 to present sure. and a useless fact.
just vague y12,

all we know is this. and is no answer. a VAN.

https://en.wikipedia.org/wiki/Nissan_AD#Y12_series

the tcm shifts the transmission but CVT does not shift,. it just changes ratios on the 2 pulleys inside.(not via gears at all)


only planetary gear set a/t boxes shift! using clutch packs(modern)
yes CVT will have special gear set just for reverse.
that is it for no car and no transmission told
and is 100% all about all about

Cvt auto fluid

Changing the fluid after 50,000 with the proper type fluid can't hurt anything. The tech probably didn't have it on hand.

There is a class action lawsuit for the 2002 to 2006 Mini CVT transmission. Worst transmission ever. dealer usually replaces complete trans.

Is the check engine lite on? If it is have the vehicle scanned for codes. Sounds like the Transmission control module not responding to anything.

If your Mini is the CVT automatic, the problem may be software-related. There was a software upgrade issued under warranty during 2002 / 2003. It would be surprising if your car missed out on the upgrade - but worth a check with your Mini dealer.

Next thing to check is your car's battery. If the battery is getting old (and the original battery in a 2002 car would be OLD), you should consider replacing it with a similar high-output battery. The CVT transmission needs plenty of electrical power to operate correctly. After replacing the battery, the transmission will take a couple of days to re-learn your driving technique and return to its original honey-smooth operation.

If the battery replacement doesn't fix things, I regret to inform you that the dealer will become your best and most expensive friend.

The manual has a mis print, according to MINI the correct oil to use is ESSO CVT Z2L 799 fluid and there are no other manufacturers that use it so sorry but you will have to buy it from the main dealer.

The only way to check the trans fluid is to drain the fluid right out of the trans pan. There should be 5 liters. The only way to get the fluid in is by pumping the fluid back in by means of the fill plug on the lower front of the transmission. I believe it is a 4 or a 6mm allen to remove the plug. Whatever you use to pump the fluid back in needs to seal where the fill plug is because fluid will pour right back out. I would change the fluid at least every 50k.

Sounds like an transmission control module problem I have seen this and often times just replaced the trans mission control module and found everything working properly again.

Mini's have had problems in the past with the shift cables coming off or breaking. No worries: the only danger is that you will be stuck in the gear you where in when the cables break. No damage to the car will occur. You should check out the recall notices. Good luck


2002 Mini cvt owner