Need help with my 335i

Jr335idaily · 10-06-2018, 07:16 PM

2009 335i with 76k miles keeps going into limp mode. It has transmission and engine malfunction also my brake light is on with DSC and DBC malfunction. I replaced my coils and spark plugs and 3 injectors 2 weeks ago. I don't even push my car down a lot. just on Friday driving down the freeway around 80mph it went into limp mode. I pulled to the side and reset the car and it went away for maybe 5 min then again it went to limp mode. I pulled of the freeway and went to a gas station when I went to reset the car and turned it on, it had a long crank it started and still had the lights on. I drove home at 40mph around 2,500rpm-2,800rpm, after I got home I left the car alone for 30 min or so and turned it back on and it went away. Now just today I drove the car around town and it happened again went to limp mode and I went home and left it alone for maybe 10min went to turn it on and it's gone again. I need to know what is the problem?! I know to get the codes read but I just need some guesses what it could be. I used a generic code scanner and got p0335- Crankshaft position sensor a circuit.
I know I need a bmw scan tool but would that be the problem if not what would be the problem??
Please help me I'm taking it to my mechanic on Monday. I also bought the crankshaft position sensor today at bmw dealership. PLEASE HELP ME!

Jeef · 10-07-2018, 11:29 AM

Sounds like you figured it out.

Did you try swapping the sensor you purchased or going to have your mechanic do it?

No need to post up 5 times...

Jr335idaily · 10-07-2018, 11:46 AM

Is that what the crankshaft position sensor would do cause the car to go into limp mode on the engine and transmission malfunction? It comes and goes the malfunction but would it be better if I tested the battery to see what voltage it's getting?

Jr335idaily · 10-07-2018, 11:48 AM

Sorry for posting so much I just need help. you beside one other person has commented back lol
appreciate the reply, I was thinking of taking it to the mechanic tomorrow I know it's underneath the intake and by the starter but I'm not to sure if I can do it myself feel like it might be complicated

Jr335idaily · 10-07-2018, 11:56 AM

I used a generic code scanner, I know it's better to use a bmw scan tool but don't have one and waiting to get the k+dcan cable but would it still be the crankshaft sensor or something else?

Jeef · 10-07-2018, 12:23 PM

One step at a time.

Fix the crankshaft position sensor and hopefully the engine malfunction reduced power will go away.

The other lights are different.

Jr335idaily · 10-07-2018, 12:37 PM

I plan on buying transmission service kit and wanted the mechanic shop to do it, they said I would need a flush but is that recommended with my car only having 76k miles. I read some say don't do a flush it could mess up the transmission?

Jr335idaily · 10-07-2018, 12:40 PM

I read on another forum that the crankshaft would cause all these lights to pop up so hopefully it's just my crankshaft sensor. From what u are saying the other lights will be something different? I just need to scan the codes I only got 2 but that was with a generic code scanner so it won't be specific.

Jeef · 10-07-2018, 12:51 PM

Bmw doesn't ever say to service the transmission. They consider it lifetime which some guys have said it's only 100k miles. ZF trans does mention servicing. It's really up to you.

Most enthusiasts will service the trans 40-50k miles. Fluid Flush, change filter etc. Others who just drive on the daily will run it until their transmission experiences issues.

Jr335idaily · 10-07-2018, 01:23 PM

That's what I don't want is having problems in my transmission later on but would it be safe to do a transmission flush?

feuer · 10-07-2018, 03:10 PM

How about you stop reading and stop creating new threads and take your car to a repair shop before is completely broken!

10-06-2018, 07:16 PM	#1
Jr335idaily Enlisted Member 9 Rep 45 Posts Drives: 2009 335i sedan Join Date: Sep 2018 Location: Fresno iTrader: (0)	Need help with my 335i 2009 335i with 76k miles keeps going into limp mode. It has transmission and engine malfunction also my brake light is on with DSC and DBC malfunction. I replaced my coils and spark plugs and 3 injectors 2 weeks ago. I don't even push my car down a lot. just on Friday driving down the freeway around 80mph it went into limp mode. I pulled to the side and reset the car and it went away for maybe 5 min then again it went to limp mode. I pulled of the freeway and went to a gas station when I went to reset the car and turned it on, it had a long crank it started and still had the lights on. I drove home at 40mph around 2,500rpm-2,800rpm, after I got home I left the car alone for 30 min or so and turned it back on and it went away. Now just today I drove the car around town and it happened again went to limp mode and I went home and left it alone for maybe 10min went to turn it on and it's gone again. I need to know what is the problem?! I know to get the codes read but I just need some guesses what it could be. I used a generic code scanner and got p0335- Crankshaft position sensor a circuit. I know I need a bmw scan tool but would that be the problem if not what would be the problem?? Please help me I'm taking it to my mechanic on Monday. I also bought the crankshaft position sensor today at bmw dealership. PLEASE HELP ME! __________________ E90
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10-07-2018, 11:29 AM	#2
Jeef Lieutenant Colonel 391 Rep 1,943 Posts Drives: AW E92 335i Join Date: Nov 2008 Location: San Diego, CA iTrader: (6)	Sounds like you figured it out. Did you try swapping the sensor you purchased or going to have your mechanic do it? No need to post up 5 times...
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10-07-2018, 11:46 AM	#3
Jr335idaily Enlisted Member 9 Rep 45 Posts Drives: 2009 335i sedan Join Date: Sep 2018 Location: Fresno iTrader: (0)	Is that what the crankshaft position sensor would do cause the car to go into limp mode on the engine and transmission malfunction? It comes and goes the malfunction but would it be better if I tested the battery to see what voltage it's getting? __________________ E90
	Appreciate 0 Quote

10-07-2018, 11:48 AM	#4
Jr335idaily Enlisted Member 9 Rep 45 Posts Drives: 2009 335i sedan Join Date: Sep 2018 Location: Fresno iTrader: (0)	Sorry for posting so much I just need help. you beside one other person has commented back lol appreciate the reply, I was thinking of taking it to the mechanic tomorrow I know it's underneath the intake and by the starter but I'm not to sure if I can do it myself feel like it might be complicated __________________ E90
	Appreciate 0 Quote

10-07-2018, 11:56 AM	#5
Jr335idaily Enlisted Member 9 Rep 45 Posts Drives: 2009 335i sedan Join Date: Sep 2018 Location: Fresno iTrader: (0)	Need help with my 335i I used a generic code scanner, I know it's better to use a bmw scan tool but don't have one and waiting to get the k+dcan cable but would it still be the crankshaft sensor or something else? __________________ E90
	Appreciate 0 Quote

10-07-2018, 12:23 PM	#6
Jeef Lieutenant Colonel 391 Rep 1,943 Posts Drives: AW E92 335i Join Date: Nov 2008 Location: San Diego, CA iTrader: (6)	One step at a time. Fix the crankshaft position sensor and hopefully the engine malfunction reduced power will go away. The other lights are different.
	Appreciate 0 Quote

10-07-2018, 12:37 PM	#7
Jr335idaily Enlisted Member 9 Rep 45 Posts Drives: 2009 335i sedan Join Date: Sep 2018 Location: Fresno iTrader: (0)	I plan on buying transmission service kit and wanted the mechanic shop to do it, they said I would need a flush but is that recommended with my car only having 76k miles. I read some say don't do a flush it could mess up the transmission? __________________ E90
	Appreciate 0 Quote

10-07-2018, 12:40 PM	#8
Jr335idaily Enlisted Member 9 Rep 45 Posts Drives: 2009 335i sedan Join Date: Sep 2018 Location: Fresno iTrader: (0)	I read on another forum that the crankshaft would cause all these lights to pop up so hopefully it's just my crankshaft sensor. From what u are saying the other lights will be something different? I just need to scan the codes I only got 2 but that was with a generic code scanner so it won't be specific. Attached Images __________________ E90
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10-07-2018, 12:51 PM	#9
Jeef Lieutenant Colonel 391 Rep 1,943 Posts Drives: AW E92 335i Join Date: Nov 2008 Location: San Diego, CA iTrader: (6)	Bmw doesn't ever say to service the transmission. They consider it lifetime which some guys have said it's only 100k miles. ZF trans does mention servicing. It's really up to you. Most enthusiasts will service the trans 40-50k miles. Fluid Flush, change filter etc. Others who just drive on the daily will run it until their transmission experiences issues.
	Appreciate 0 Quote

10-07-2018, 01:23 PM	#10
Jr335idaily Enlisted Member 9 Rep 45 Posts Drives: 2009 335i sedan Join Date: Sep 2018 Location: Fresno iTrader: (0)	That's what I don't want is having problems in my transmission later on but would it be safe to do a transmission flush? __________________ E90
	Appreciate 0 Quote

10-07-2018, 03:10 PM	#11
feuer Major General 4289 Rep 9,226 Posts Drives: wife crazy! Join Date: Apr 2015 Location: Chicago, IL iTrader: (5)	How about you stop reading and stop creating new threads and take your car to a repair shop before is completely broken!
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