Valvtronic Code 135C11 for the motor?

Tiny
BEETLEPUNK21
  • MEMBER
  • 2014 BMW 320I
  • 4 CYL
  • TURBO
  • 4WD
  • AUTOMATIC
  • 109,000 MILES
Hello, I just bought this BMW and have quite a few codes that I pulled from the computer. One in particular that I am concerned about is this 135C11 code for the valvetronic motor.

What would be the process to correct or fix this issue?

Can it be reset? Or is there something that can be done to correct the issue without having to replace it?

Thanks in advance!
Monday, July 28th, 2025 AT 5:54 AM

13 Replies

Tiny
KEN L
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So this is telling you the high pressure fuel pump cannot keep up or the fuel pressure sensor is going out.

Code 135C11 - DME: Fuel pressure too low during cold start

I would try the sensor first because they have a high failure rate, and if that doesn't help you will need a high pressure fuel pump, also check the cam lobe once the pump has been removed, there is a chance the camshaft lobe is worn out FYI. Here is how to change the sensor and HPFP. When you change the parts out be sure to loose the fuel line to release the fuel pressure slowly. Check out the images (below). Please upload pictures or videos in your response
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Monday, July 28th, 2025 AT 2:40 PM
Tiny
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I attached a photo of the code. So, even though it says “valvetronic servomotor position sensors signals implausible” it really means “Fuel pressure too low during cold start”?
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Friday, August 1st, 2025 AT 10:13 AM
Tiny
KEN L
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That is a general code that is telling you one of the sensor is giving back information that is not viable. Which will be the oil pump control solenoid as per the other codes.
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+1
Friday, August 1st, 2025 AT 11:47 AM
Tiny
BEETLEPUNK21
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Ahhh, gotcha. Thank you for clarifying. I dropped the oil pan and found a few broken pieces of plastic from the timing chain guides in there. The oil pump pick-up looked clean and not clogged. I’m assuming that maybe there were some plastic pieces close to the pick up and perhaps it was restricting oil flow?

Because I wouldn’t think that the oil pump is bad, right?
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Saturday, August 2nd, 2025 AT 6:53 AM
Tiny
KEN L
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No the oil pump is probably good, it is the oil pump control solenoid that needs to be replaced.
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Saturday, August 2nd, 2025 AT 9:22 AM
Tiny
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How can I test for that to see if it’s good or not? I have an autel mp808 scan tool
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Saturday, August 2nd, 2025 AT 9:26 AM
Tiny
KEN L
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Bench test by applying 12 V power to the valve terminals:

It should click or move slightly when energized. When power is removed, it should return to resting position. If it doesn’t move or sticks, it’s defective and needs replacement.
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Saturday, August 2nd, 2025 AT 9:28 AM
Tiny
BEETLEPUNK21
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Do you have any detailed instructions for that? Both removing the solenoid and testing it
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Saturday, August 2nd, 2025 AT 9:30 AM
Tiny
KEN L
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It seems like you have two problems, with this car, did you ever remove the high pressure fuel pump to check the camshaft lobe?
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Saturday, August 2nd, 2025 AT 11:03 AM
Tiny
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I have not
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Saturday, August 2nd, 2025 AT 11:04 AM
Tiny
KEN L
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Lets try that, we need to get to the bottom of:

Code 135C11 - DME: Fuel pressure too low during cold start

Lets keep the oil pump problem on this thread.

https://www.2carpros.com/questions/low-oil-pressure-74812562

Please upload pictures or videos in your response
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Saturday, August 2nd, 2025 AT 11:14 AM
Tiny
BEETLEPUNK21
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Hey Ken, could you please send detailed instructions on removing the high pressure fuel pump to check the camshaft lobe?

Thank you very much for helping me
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Saturday, August 2nd, 2025 AT 1:11 PM
Tiny
KEN L
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That is all they give us, I would crack a fuel line to relieve the pressure on both high and low side. Also you can upload images so I can see the vital parts and I can tell you if they need replacement. I would replace the HPFP because they have a high rate of failure.
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Sunday, August 3rd, 2025 AT 11:53 AM

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