BMW

BMW questions? Ask a BMW repair Expert for answers.

Ask an Expert,
Get an Answer ASAP!

2b1a code. Miss fire piston five 2b1a. 2011X6 n63. 2011.

Customer Question
Miss fire piston five...

Miss fire piston five 2b1a

Mechanic's Assistant: What is the model/year of your BMW?

2011X6 n63

Mechanic's Assistant: What year is your BMW?

2011

Mechanic's Assistant: Are you fixing your vehicle yourself? What have you tried so far?

Changed spark plugs +swap ignition coils +changed fuel injector

Mechanic's Assistant: Anything else you want the mechanic to know before I connect you?

The car starts fine no codes after mints piston 5 missfire

Submitted: 3 months ago.Category: BMW
Show More
Show Less
Ask Your Own BMW Question
Customer reply replied 3 months ago
Posted by JustAnswer at customer's request) Hello. I would like to request the following Expert Service(s) from you: Live Phone Call.
Customer reply replied 3 months ago
Let me know if you need more information, or send me the service offer(s) so we can proceed.
Answered in 21 minutes by:
4/3/2018
BMW Mechanic: peterpete190, Auto Technician replied 3 months ago
peterpete190
peterpete190, Auto Technician
Category: BMW
Satisfied Customers: 32,975
Experience: Over 17 years diagnosing and repairing vehicles.
Verified

Hi, my name is ***** ***** I will be happy to assist with this today.In some cases, I may need more info to assist better.I apologize for any delay.
I am here Sundays through Thursdays from around 5 am to 2 pm Mountain time.If you respond and I do not respond back right away I will do so as soon as I can.

Have you had a cylinder compression test done at all?

Let me know, thanks, Pete.

Ask Your Own BMW Question
BMW Mechanic: peterpete190, Auto Technician replied 3 months ago

Was cylinder 5's compression the same as all of the rest of the cylinders?

Ask Your Own BMW Question
Customer reply replied 3 months ago
it was 140
Customer reply replied 3 months ago
I did one thing I removed the spark plug 5 but some oil and started the car
She was smoking oil but running fine no misfire but when the oil finish from the exhaust it started misfire again
BMW Mechanic: peterpete190, Auto Technician replied 3 months ago

Did you put the oil in the cylinder itself?

Did you test for injector signals at the injector?

Ask Your Own BMW Question
Customer reply replied 3 months ago
signal cut then check engine came on
BMW Mechanic: peterpete190, Auto Technician replied 3 months ago

Are you saying the injector signal cut out then the misfire occurred?

Ask Your Own BMW Question
BMW Mechanic: peterpete190, Auto Technician replied 3 months ago

Inspect the wiring running from the injector all the way to the DME to see if any issues are found with the wiring itself being broken, corroded or shorting out at all.If a wiring issue is found it will need to be repaired to resolve this fault here.If this is or was checked already and the wiring is found to be o.k. since the injector signal wire comes from the DME and you only have one cylinder cutting out this sounds like the DME itself is at fault needing replaced.It can internally develop a fault cutting out the injector signal.If it was a sensor or any other component causing this here all injectors would cut out which is not the case here.

If more help is needed, use the reply tab to continue our conversation. If no further assistance is needed, kindly rate my service, your 5-star rating is appreciated ( should be a link to click on here or above).You can rate at any time and we can continue to work on your question as this will not close out your question.I work on delivering the best answer and help here but in some cases, it can be difficult to do without seeing the vehicle.

Thanks Pete

Ask Your Own BMW Question
Was this answer helpful?

How JustAnswer works

step-image
Describe your issueThe assistant will guide you
step-image
Chat 1:1 with a bmw mechanicLicensed Experts are available 24/7
step-image
100% satisfaction guaranteeGet all the answers you need
Ask peterpete190 Your Own Question
peterpete190
peterpete190
peterpete190, Auto Technician
Category: BMW
Satisfied Customers: 32,975
32,975 Satisfied Customers
Experience: Over 17 years diagnosing and repairing vehicles.

peterpete190 is online now

A new question is answered every 9 seconds

How JustAnswer works:

  • Ask an ExpertExperts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional AnswerVia email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction GuaranteeRate the answer you receive.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

I would (and have) recommend your site to others I was quite satisfied with the quality of the information received, the professional with whom I interacted, and the quick response time. Thanks, and be sure that I'll be back whenever I need a question answered in a hurry.

Stephanie PElm City, NC

used your service this weekend with "Trecers" help. thank you ,thank you, thank you. replaced an A/C fan motor. Local Auto Zone had part. $15.00 "tracer" fee and $40.00 for parts, I saved several hundreds of dollers at a shop. i will recommend you and use you in the future.

David L.Richmond, TX

9 dollars, 2 hours of my time, and I drove away. Your diagnosis was right on the mark. Thank you so much.

PhilMarysville, CA

Lurch. Thank you very much. I had real doubts about this website but your promptness of response, quick followup and to the point answer with picture was incredible.

CharlesWalnut Creek, CA

As a single woman, I really appreciate an excellent and affordable opinion.
Thank you Geordie, I will not hesitate to contact justanswer in the future!

SueCharleston, WV

Another great insight to what may be the problem. I will have my mechanic take a look at it tomorrow. Thanks again, Frank...you do indeed know your stuff.

JimCastleberry, FL

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help.

Mary C.Freshfield, Liverpool, UK

< Previous | Next >

Meet the Experts:

Roger

Roger

BMW Master Tech

3,050 satisfied customers

10 yrs. experience as BMW Master Technician, shop foreman and dealer.

Marty

Marty

ASE Certified Technician

558 satisfied customers

ASE & Bosch Certified Master Tech. Over 30 years experience.

bimmaster

bimmaster

BMW Technician

1,838 satisfied customers

3 years dealer experience, master bmw tech

Sam

Sam

BMW Master technician

1,043 satisfied customers

BMW S.T.E.P. graduate, 10 years BMW dealership experience

Thebmwbum

Thebmwbum

BMW Foreman

714 satisfied customers

31 years BMW Experience

mike

mike

BMW Technician

694 satisfied customers

bmw master tech ase certified

Matt

Matt

Engineer

444 satisfied customers

Mechanical Engineer with 20 years experience in the auto industry, 8 yrs in formula 1 engine testing

< Previous | Next >

Related BMW Questions
I WOULD LIKE TO TALK TO. I NEED INFORMATION ON A 2002 MINI.
I WOULD LIKE TO TALK TO ROGER. I NEED INFORMATION ON A 2002 MINI COOPER … read more
Kevin
Kevin
workshop foreman /master tech/mot tester
1 satisfied customers
Codes 51A7 and 2A94 I replace crank and still the same codes
codes 51A7 and 2A94 I replace crank and still the same codes came back … read more
eric remington
eric remington
FORMER SHOP OWNER/TECHNICIAN/INSPECTOR
associates degree
856 satisfied customers
2012 i series chugging occasionally and at idle similar to a
2012 i series chugging occasionally and at idle similar to a missfire but nothing showed on diagnostics … read more
Kenny
Kenny
Vocational, Technical or Trade Scho
1,120 satisfied customers
You sent me to a MB mechanic. I have a 2011 BMW X5, no
You sent me to a MB mechanic. I have a 2011 BMW X5 … read more
Stephen, MBA
Stephen, MBA
Master's Degree
166 satisfied customers
I replace the leak detection pump and now doesn't start.
I replace the leak detection pump and now doesn't start … read more
Kenny
Kenny
Vocational, Technical or Trade Scho
1,120 satisfied customers
2008 bmw 328xi n51. So i was replacing the valve cover
2008 bmw 328xi n51. So i was replacing the valve cover gasket on this car and failed to follow the procedure for removing the valvetronic motor did i just completely mess up or can i still install it … read more
Stephen, MBA
Stephen, MBA
Master's Degree
166 satisfied customers
2006 750li with 140k, just changed spark plugs and 2
2006 750li with 140k, just changed spark plugs and 2 ignition coils changed. Problem I'm experiencing is car randomly shuts off. Loss of fluid is on, check engine light on, drive moderately is on.… read more
Stephen, MBA
Stephen, MBA
Master's Degree
166 satisfied customers
Was just trying to figure some error codes that are given
was just trying to figure some error codes that are given after an issue not shifting and going into safemode … read more
JayPutelis
JayPutelis
Associate Degree
565 satisfied customers
I tried to reset my brake lining now I have no power and my
I tried to reset my brake lining now I have no power and my key stuck in the switch and it went start.… read more
Chad Farhat
Chad Farhat
Owner
Associate Degree
5,437 satisfied customers
My 2009 mini S heated up due to a leak at the oil filter
My 2009 mini cooper S heated up due to a leak at the oil filter housing block seal. The engine shut itself off when it heated up. I replaced all the seals in the oil filter housing assembly. The engin… read more
Stephen, MBA
Stephen, MBA
Master's Degree
166 satisfied customers
535i xdrive: As I was driving and getting close to 80mph my
As I was driving and getting close to 80mph my radio dash and headlights started to flicker on and off onto the car shut off now dose t start it's a 2011 bow 535i xdrive… read more
Stephen, MBA
Stephen, MBA
Master's Degree
166 satisfied customers
Bmw 325 I 1987 motor 2.7 it do not start it not have spark
Bmw 325 I 1987 motor 2.7 it do not start it not have spark maybe ane sensor I need help thank for your help.… read more
Stephen, MBA
Stephen, MBA
Master's Degree
166 satisfied customers
H1 working on 04 745i Bmw i change the valve cover gasket
h1 my name is ***** ***** on 04 745i Bmw i change the valve cover gasket after I finish ,and started the car it run smood try to give it gas and it was acting up i turned it off and took out the servo… read more
sprinkles08
sprinkles08
Technician
High School or GED
11 satisfied customers
03 745li clicks when attempting to start. I just replaced
03 745li clicks when attempting to start. I just replaced the starter and it's doing the same thing. The codes present are 2862,2863 & 2807.… read more
Anthony
Anthony
Master Automobile Technician
Vocational, Technical or Trade Scho
8,789 satisfied customers
2005 BMW X5 pushed sos emergency button, cannot shut it off
2005 BMW X5 pushed sos emergency button , cannot shut it off and the radio stopped working i'm a mechanic but not a tech!!!! help… read more
Stephen, MBA
Stephen, MBA
Master's Degree
166 satisfied customers
I have 2006 bmw x5 it has lights on the dashboard related to
hi sir I have 2006 bmw x5 it has lights on the dashboard related to 4x4 and I scan the code its bring upcode on scanner 5f3a how I can fix this code… read more
Stephen, MBA
Stephen, MBA
Master's Degree
166 satisfied customers
What should the total cost be to replace a broken driver
What should the total cost be to replace a broken driver side door latch including all parts and labor on a 1999 BMW Z3.… read more
Stephen, MBA
Stephen, MBA
Master's Degree
166 satisfied customers
X5 3.01: I have a 2002 BMW x5 3.01 I had disconnect my battery
I have a 2002 BMW x5 3.01 I had disconnect my battery to change my headliner because I have airbags up by my headliner. hook up battery everything ok but the shifter light stay on in park and my key r… read more
Stephen, MBA
Stephen, MBA
Master's Degree
166 satisfied customers
Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Show MoreShow Less

Ask Your Question

x