Yellow cog light

Hoangnguyen95 · 10-25-2016, 08:09 PM

Wondering if anyone has experienced this problem. I was driving my 2007 e90 335i and the yellow gear or cog light comes on. This happened to me a few months ago also when I was driving back from New York. I turn the engine off and on again it disappears. This time when I restarted the engine it comes back and check engine light comes on. I bring it home and turn it on again to draw codes and the lights disappear

has anyone had this problem? Hopefully my transmission isn't failing car drives perfectly fine except when I was driving in Massachusetts a while ago going down hill I felt like there was hesitation in the transmission when switching gears (AT) like it didn't know what gear to go to or the gears were slipping or something. Other than that time car drives awesome. Been hearing a ticking noise from engine bay but pretty sure that's the serpentine belt which I'm going to replace soon.

AM330i · 10-25-2016, 10:35 PM

The gear light is the transmission. Had a similar problem on a 325xi that I owned for less than a month. Basically Came down to I bought a car with a bad transmission. It would start slipping and that light would come on, the repair was going to cost more than I paid for the car. Luckily the dealer bought the car back. First thing to check is codes, you need a bmw specific code reader for this. It is possible that you could be low on transmission fluid which could mean you may have a leak.

Hoangnguyen95 · 10-25-2016, 10:45 PM

Ok thanks. I can pull bmw codes but the lights dissappeared so I didn't bother. Would they be saved on the ecu? I never noticed slipping except that one time I was driving on this curvy road down a mountain. Hopefully it's just a leak and I can get it fixed without spending too much...

kkasson · 10-26-2016, 04:58 AM

Yeah any codes should still be stored. There are a number of different errors that all cause that light, look at this list: https://wiki.bentleypublishers.com/d...90+E91+E92+E93

Did the transmission go into failsafe mode when it happened? You'll definitely feel it...you can hardly accelerate when it happens.

Hoangnguyen95 · 10-26-2016, 10:11 AM

No it didn't feel that at all. Car drives fine even with the light. Usually the lights dissappeared after I restart the car. I'll pull codes on the car later today

Dark_Knight_335 · 10-26-2016, 01:25 PM

Picture of said icon would help.

Hoangnguyen95 · 10-26-2016, 10:51 PM

It's the yellow gear with the exclamation symbol usually indicates a transmission issue..

So I tried pulling codes but I had problems with my voltage regulator not too long ago and the Ecu still had those codes saved. so I cleared them and the lights haven't come back. Hopefully it was nothing. Car feels fine to me

10-25-2016, 08:09 PM	#1
Hoangnguyen95 Enlisted Member 14 Rep 48 Posts Drives: 335i Join Date: Apr 2016 Location: Jersey iTrader: (0)	Yellow cog light Wondering if anyone has experienced this problem. I was driving my 2007 e90 335i and the yellow gear or cog light comes on. This happened to me a few months ago also when I was driving back from New York. I turn the engine off and on again it disappears. This time when I restarted the engine it comes back and check engine light comes on. I bring it home and turn it on again to draw codes and the lights disappear has anyone had this problem? Hopefully my transmission isn't failing car drives perfectly fine except when I was driving in Massachusetts a while ago going down hill I felt like there was hesitation in the transmission when switching gears (AT) like it didn't know what gear to go to or the gears were slipping or something. Other than that time car drives awesome. Been hearing a ticking noise from engine bay but pretty sure that's the serpentine belt which I'm going to replace soon.
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10-25-2016, 10:35 PM	#2
AM330i First Lieutenant 90 Rep 386 Posts Drives: 08 535xi 11 328xi Join Date: Oct 2011 Location: Rochester, NY iTrader: (0) Garage List 2023 BMW M440 [0.00]	The gear light is the transmission. Had a similar problem on a 325xi that I owned for less than a month. Basically Came down to I bought a car with a bad transmission. It would start slipping and that light would come on, the repair was going to cost more than I paid for the car. Luckily the dealer bought the car back. First thing to check is codes, you need a bmw specific code reader for this. It is possible that you could be low on transmission fluid which could mean you may have a leak.
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10-25-2016, 10:45 PM	#3
Hoangnguyen95 Enlisted Member 14 Rep 48 Posts Drives: 335i Join Date: Apr 2016 Location: Jersey iTrader: (0)	Ok thanks. I can pull bmw codes but the lights dissappeared so I didn't bother. Would they be saved on the ecu? I never noticed slipping except that one time I was driving on this curvy road down a mountain. Hopefully it's just a leak and I can get it fixed without spending too much...
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10-26-2016, 04:58 AM	#4
kkasson Lieutenant 187 Rep 589 Posts Drives: 07 BMW 328i, 08 BMW 528i Join Date: Jun 2015 Location: CA iTrader: (0)	Yeah any codes should still be stored. There are a number of different errors that all cause that light, look at this list: https://wiki.bentleypublishers.com/d...90+E91+E92+E93 Did the transmission go into failsafe mode when it happened? You'll definitely feel it...you can hardly accelerate when it happens.
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10-26-2016, 10:11 AM	#5
Hoangnguyen95 Enlisted Member 14 Rep 48 Posts Drives: 335i Join Date: Apr 2016 Location: Jersey iTrader: (0)	No it didn't feel that at all. Car drives fine even with the light. Usually the lights dissappeared after I restart the car. I'll pull codes on the car later today
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10-26-2016, 01:25 PM	#6
Dark_Knight_335 Came to the N55 Darkside 1112 Rep 12,740 Posts Drives: 2011 335 E93 M-Sport Join Date: May 2010 Location: NY/NJ iTrader: (28)	Picture of said icon would help.
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10-26-2016, 10:51 PM	#7
Hoangnguyen95 Enlisted Member 14 Rep 48 Posts Drives: 335i Join Date: Apr 2016 Location: Jersey iTrader: (0)	It's the yellow gear with the exclamation symbol usually indicates a transmission issue.. So I tried pulling codes but I had problems with my voltage regulator not too long ago and the Ecu still had those codes saved. so I cleared them and the lights haven't come back. Hopefully it was nothing. Car feels fine to me
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