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Thread: Knock Sensor Error and Drivetrain Malfunction

  1. #1
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    Moon Knock Sensor Error and Drivetrain Malfunction

    MY CAR: BMW 428i Gran Coup 2015
    MILEAGE: 35,000
    PROBLEM: Knock Sensor Error Code and Drivetrain Malfunction

    I have been receiving drive train malfunction indicators on my dash display, and I finally ran the code reader... Error Code P0327 Knock Vibration Sensor 1, Circuit Low Bank 1 or single sensor.

    Its hard to believe that this sensor has already failed.. considering the car has only 35,000 miles. The engine does not knock or ping as I can notice.. runs smooth. I was planning on new spark plugs.. thinking it was a misfire. However, the Knock Sensor code, has made me think otherwise now? I wanted to know if I should proceed with replacing the Knock Sensors because it ran this code, and if this is the #1 and best course of action. Replacing these sensors is a bigger job, so some confirmation from another source would be great?!?!!? Thanks!!!Knock.jpg

  2. #2
    dworthy's Avatar
    dworthy is offline Wagon meister :) BMW Tech Expert
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    A hand scanner isn't the most reliable thing as it will give you generic codes on a BMW, so take that code with a grain of salt.

    So the spark plugs are a 60k km (37k miles) maintenance item, or ever second oil change, so I am sure you are at or past that already.

    As a general rule of thumb, clear the code to see if it comes back. Sometimes you will get codes out of left field and once you clear them, never see them again.
    Darin
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  3. #3
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    If the code returns and changing the plugs doesnít rectify the issue check the wiring to the sensor. Itís item #11 in the link.

    https://www.realoem.com/bmw/enUS/sho...diagId=11_4760

    Replace the sensor if the wiring looks fine. The part, made by VDO (a subsidiary of Continental), is about $31 from FCPEuro.

    https://www.fcpeuro.com/products?key...SAAEgKK1fD_BwE

    It doesnít look like itís hard to get to. Darin, can you confirm this?

  4. #4
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    A lot is tnose sensors are under 7 years 70 k federal emission warranty, even if the knock sensor I don't think you would hear it ping

  5. #5
    dworthy's Avatar
    dworthy is offline Wagon meister :) BMW Tech Expert
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    Easy to get to? Not really as you have the starter right below it, and the intake above it. If you have big hands, will be hard to get to without removing the intake.

    Yes, I would double check on the warranty for that, for it should be covered under the emission side. The way BMW may try to wiggle out of it is if you don't get the car serviced at their dealerships, or by an Indy with BMW certs.
    Darin
    Current:
    16 220i Active Tourer Platinsilver MET (C08)/Dakota Black (PDSW), P7ACA, P7LDA, P7LHA, P9BDA, 6sp Manual - Wife's new toy!
    05 325it Electric Red(438)/Gray(N6TT) ZCW, ZSP 5sp Manual Back set cover, trunk mat, Euro Infra-Rot front windshield, and mud flaps! Mr. Wagon My new Winter car.
    05 M3 Imolarot II(405)/Gray(N5TT) ZCW, ZPP 6sp Manual C.F. Lip, CSL diffuser, SSK, Euro Infra-Rot front windshield and a trunk liner! Mr. Go_Fast Stored for the Winter
    Past:
    95 318is Montreal Blue Met (297)/Beige(K1SN) RIP, killed by an Idiot.
    84 M535i gray market Burgandy Rot Met/Black Leather Lowered by Intrax on bilies, poly everywhere, B&B cat back system, K&N, and a hitch! Da Beast - Still running w/400k+!
    91 316i euro Tizianrot/Gray cloth - E-36 w/M-40 RIP, but great on gas! Best was 38 MPG
    82 528i euro Saphire Blue Met/Blue Leather RIP
    79 525 euro Green/Green RIP
    79 318 Silver/Black - The first one that got it all started
    M-Flight Member

  6. #6
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    Go to www.bimrs.org to find a reputable indie shop that specializes in bimmers in your area.

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