How do i reset my automatic transmission on a bmw 318i 2003?

BMWs in the 3 Series and 5 Series that come with the 5-speed ZF transmission commonly experience problems with torque converter delamination. Drivers will notice signs of this problem when the car appears to shudder or misfire at around 40-50km/h.
This BMW transmission problem needs to be repaired as soon as the first signs are noticed. If you drive until the converter lining actually fails, it can destroy the entire pump assembly in the transmission. This will require a complete reconditioning of the automatic transmission.
BMW drivers are cautioned that it is better to spend a little now, rather than a lot later.
Apart from the problem with the torque converter delaminating, these 5-speed transmissions commonly suffer breakage of the D/G cylinder. If this breaks, the car loses reverse gear. This automatic transmission problem is another that requires a total transmission overhaul to repair.

the transmission warning light is an indication of a fault in the transmission which you apparently ignored. You were supposed to have that fault codes read immediately the light came on as that is when the repair will be at the cheapest. have the codes read now to determine what is wrong

https://www.google.com/search?q=1998+BMW+318i+Automatic+Torque+settings+Head+gasket&biw=1360&bih=650&tbm=isch&tbo=u&source=univ&sa=X&ved=0ahUKEwie8o3ix8_QAhUJRSYKHdIXBrkQsAQIKQ

Hope this helps

Check engine light? If not try changing the transmission filter.

Get an owner's manual to be absolutely sure. 318i e46 too nice a machine to screw up...

no the auto is shorter because the transmission is longer

Definitely a trans problem

Seeing as how you have continued to
drive it, even 5 miles,when it wasn't working
correctly, as well as ignoring the fault code
light,I doubt that there will be a fix

Your most likely going to spend north of $3,000
for a reman trans

The air filter housing would have to be almost off
& you would have checked that before asking

If it were loose, it may upset the shift stratagy,as the
MAF Sensor may be part of that

But the slowing down,& slamming into different gears,
just one day of driving like that, you ruin the trans

If you are not very experienced with automatic transmissions, dont let this one be the learner.You will need a thousand dollars in speacial tools to get it apart and back together, not counting knowledege and experience that will not come easily. A diagram will not give you the needed tricks to get the job done.

The automatticc ttransmission fire the gears from higgth to low went the car desaceelerate

Hello there

If you drive an automatic and it starts to judder at low speeds than that means you transmission isn't down shifting as the speed is reduced. In the first instance you should get your transmission oil changed.

Hope this helps and please don't forget to rate me.