JJack81108
04-28-2005, 07:14 AM
Test your knowledge on this one! I was so excited to purchase my second used BMW a 92 525i. After about two weeks of perfect driving I noticed a small transmission leak. I took it to a transmission specialist. It was the upper seal leaking, They pulled the auto trans and fixed it. However, In the process they noticed my Thrust washer was cracked inside the tranny, After installing a replacement washer. They gave it a test drive. All is fine they said. After driving it a few days in town with no problems I hit the interstate. It wanted to stay in third gear and not go down to fourth. Bing, Limp Mode, Program Transmission.
If I moved the shifter into N while on the interstate I could drop it back down into D and it would drop into 4th for about 10 seconds then rev back up to third. Ultimately, ending up in Limp mode again.
I got 2 codes code 20 Speed Sensor and code 100 Speed Rotation to high for gear selected.
I replaced the shift selector, the shift Assembly, The Trans Speed Sensor and it still does the same. It never did this before the reseal. They swear it is nothing they did and that I may need a new transmission. However it drives fine as long as I’m in the city and don't use 4th gear.
Jonathan
If I moved the shifter into N while on the interstate I could drop it back down into D and it would drop into 4th for about 10 seconds then rev back up to third. Ultimately, ending up in Limp mode again.
I got 2 codes code 20 Speed Sensor and code 100 Speed Rotation to high for gear selected.
I replaced the shift selector, the shift Assembly, The Trans Speed Sensor and it still does the same. It never did this before the reseal. They swear it is nothing they did and that I may need a new transmission. However it drives fine as long as I’m in the city and don't use 4th gear.
Jonathan