[jeeve.x]

Hey guys, so today I went to start my car and the Service Engine Soon light came on together with a flashing gear-like warning light, I am assuming it is the transmission.

I restarted the car a couple of times and on the second try, the gear warning light went off just the SES light stayed on. I tried to put the car in reverse but it would not move. So I restarted the car again, this time the SES light is still on but car moves.

I drove around the block slowly, seems to be working fine. I restarted the car and all went back to normal, no lights, nothing.

Does anyone have any idea what seems to be the problem? Does the temperature play a part? It was below freezing btw. Any help is greatly appreciated!

[kfrazie1]

How many miles? at or mt? Is your battery good?

[BMWM.D.]

Possibly low-voltage causing communication issues on the PT-CAN. Like stated above, how is your battery? Clock been resetting at all?

[jeeve.x]

Originally Posted by kfrazie1

How many miles? at or mt? Is your battery good?

It's an auto with 89k miles. No signs of a weak battery though. I have to double check on that. So it's most likely not a mechanical problem?

[jeeve.x]

Originally Posted by BMWM.D.

Possibly low-voltage causing communication issues on the PT-CAN. Like stated above, how is your battery? Clock been resetting at all?

I have to check the battery. No I don't think the clock reset.

[GoRomeo]

Yeah I would start by testing your battery since we ve seen low battery causes weird icon readings in dasboard. Especially with cold weather were you are. Keep us posted. That transmisson icon its scary.

[jeeve.x]

Originally Posted by GoRomeo

Yeah I would start by testing your battery since we ve seen low battery causes weird icon readings in dasboard. Especially with cold weather were you are. Keep us posted. That transmisson icon its scary.

Thanks a lot guys. Will keep you posted

[BMWM.D.]

Originally Posted by jeeve.x

Thanks a lot guys. Will keep you posted

Yeah, the transmission warning isn't super common to see on these cars. Could be a lot of things, though.

[jeeve.x]

Originally Posted by BMWM.D.

Yeah, the transmission warning isn't super common to see on these cars. Could be a lot of things, though.

Couldn't find a shop today. But I have been driving around today with no lights no problems. However there was one single instance where I started from a red light and there was a major jerk going into second gear. Any thoughts?

[kfrazie1]

Originally Posted by jeeve.x

Couldn't find a shop today. But I have been driving around today with no lights no problems. However there was one single instance where I started from a red light and there was a major jerk going into second gear. Any thoughts?

That jerk your felt is most likely software related if you still run the older MSD80 software. Very common. It happens when engine is cold and can not be reproduced in DS mode. I get the jerk often because I never bothered to update the software.

My recommendation is just to check the battery. I jumped my car once because battery died on me and when I restarted I had transmission light on and it locked up in 3rd gear. If battery voltage is low it can't supply all the auxiliary components and odd things start happening.

[kfrazie1]

Update on this?

[jeeve.x]

Originally Posted by kfrazie1

Update on this?

Been busy lately, didn't check the forums.

Well, the car has been running perfectly so far. No weird lights, no major jerks either. Hope it stays this way. I did not get the battery checked however.