BMW

BMW Questions? Ask a BMW Repair Expert for Answers.

Ask an Expert,
Get an Answer ASAP!

BMW

bmw x5 3.0i: my car today that the code come upp0313..p0174, p0171

Customer Question
i have a bmw x5...
i have a bmw x5 3.0i 2003
i scan my car today that the code come up
P0313, P0300, P1349, P1351,P1085, P1512, P1345, P1347, P1343, P1083, P0174, P0171
Submitted: 5 years ago.Category: BMW
Show More
Show Less
Ask Your Own BMW Question
Answered in 1 minute by:
2/24/2012
BMW Mechanic: Steve, BMW Expert replied 5 years ago
Steve
Steve, BMW Expert
Category: BMW
Satisfied Customers: 24,861
Experience: BMW Expert
Verified
PLEASE NOTE THAT EXPERTS ARE ONLY COMPENSATED WHEN THE ACCEPT BUTTON IS PRESSED

 

.

 

JUSTANSWER IS AN HONOR SYSTEM AND EXPERTS ARE ONLY COMPENSATED WHEN THE ACCEPT BUTTON IS PRESSED

 

.

 

EVEN IF YOU ARE ON A SUBSCRIPTION WITH UNLIMITED OR MULTIPLE QUESTIONS ACCEPT STILL NEEDS TO BE CLICKED TO CREDIT YOUR EXPERT

 

THANK YOU

 

 

*

*

*

*

 

 

 

 

Before reading my answer below, please note that I do not receive any credit or compensation whatsoever for my time and effort until the green ACCEPT button is pressed. Thank you.

 

 

 

 

Hello and welcome to JustAnswer BMW,

My name is Steve and it will be my pleasure to assist you today.

 

These codes indicate lean running and fuel trim problems,

 

This would most likely be caused by an unmetered intake air leak of some kind.

 

Unmetered air leaks allow excess air into the engine and cause the fuel/air mixture to go out of alignment and causes these codes.

 

The definitive test for intake leaks is a smoke test where a smoke machine (kind of similar to a fog machine you would see at a concert or on Halloween) pumps the intake full of smoke and then the smoke reveals the leaks as it seeps out through any cracks or holes.

 

However, you can still check for leaks at home. To check for intake leaks, visually inspect the intake area for any cracked hoses/pipes. If you can't see anything, you can try this trick: spray a can of carb cleaner around the intake with the engine idling. If the idle changes, this indicates that the cleaner is entering the engine and you have localized the area of the leak. You can then inspect further.

 

The most common source of air leaks is from the rubber intake tubes between the air box, and the throttle.

 

Another common issue that causes this problem is a failed crankcase vent valve (aka PCV). This valve regulates a vacuum on the crankcase, when they fail, a high vacuum is put on the crankcase - giving an air leak. You can check for this by removing the oil filler cap with the engine running, if there is a high vacuum holding the cap down, the engine stalls, or idle dips a lot, then this valve has failed and is your problem.

 

Aside from the above, a failed mass airflow sensor can also cause this, a fuel pump / pressure problem, and also possibly an o2 sensor or temp sensor. However, these would be much less likely than the above items.

 

I hope that is helpful, please let me know if you have further questions, or if I can clarify anything for you.


It has been my pleasure to help today and I wish you the best of luck with your purchase decision.


If satisfied with my assistance, please press the green "ACCEPT" button so that I may be credited for helping today. I am not credited or compensated whatsoever until you press the green ACCEPT button.

 

>>>>>PLEASE DO NOT FORGET TO PRESS ACCEPT <<<<<

 

thank you in advance.

 

Steve

Ask Your Own BMW Question
Ask Steve Your Own Question
Steve
Steve
Steve, BMW Expert
Category: BMW
Satisfied Customers: 24,861
24,861 Satisfied Customers
Experience: BMW Expert

Steve 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

517 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

420 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 have a 2005 325ci that has had a check engine light on for
I have a 2005 325ci that has had a check engine light on for a long time. The codes are for lean banks 1 and 2. It has a rough idle at startup but runs good once it warms up. In the last year I have r… read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 satisfied customers
I have a 2006 BMW X5 4.4 engine vehicle, the vehicle has
I have a 2006 BMW X5 4.4 engine vehicle , the vehicle has been seating for 3 months , battery dead so I purchased the proper battery, after installing I turned the key only to get the word code and wi… read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 satisfied customers
I keep getting a few codes from the check engine light.
i keep getting a few codes from the check engine light. P00BC, P0174 and P0171 … read more
Steve
Steve
BMW Expert
24,861 satisfied customers
2009 bmw 528i engine light came on car idles rough
2009 bmw 528i engine light came on car idles rough stopping..smooth if in neutral … read more
eauto
eauto
self employed
High School or GED
74 satisfied customers
I have a BMW 135, 2008 that had water get into the engine
Good morning,I have a BMW 135, 2008 that had water get into the engine during a thunderstorm that caused some flooding. Geico had the engine rebuilt and after 5 months (less than 8,000 miles) a rod be… read more
Marty
Marty
ASE Certified Technician
Associate Degree
517 satisfied customers
I have the engine light (orange colour) coming on for couple
Hi I have the engine light (orange colour) coming on for couple of days and going off. What could that be? It's a BMW X3 sport… read more
Kevin
Kevin
workshop foreman /master tech/mot tester
0 satisfied customers
After degreasing amd washing engine bay the low pressure oil
After degreasing amd washing engine bay the low pressure oil lamp comes on code 212 on a series 1 bmw 2005 … read more
Steve
Steve
BMW Expert
24,861 satisfied customers
I can't started my engine. I checked it. No they not
Yes alittelbit. Now I,v got this fault codes : A0c1 and 932f … read more
Gabriel Grey
Gabriel Grey
Master Service Technician
Associates
368 satisfied customers
2010 BMW 535i with an engine light that comes on and off
2010 BMW 535i with an engine light that comes on and off sporadically. 100k miles. Fault codes are 29E1 and P1074. I think the Engine idles a little rougher when the MIL light is on. Smoother when MIL… read more
Steve
Steve
BMW Expert
24,861 satisfied customers
What would be the cause if the engine cranks, but won't
what would be the cause if the engine cranks, but won't start? The car is a 2007 328iX. … read more
Chad Farhat
Chad Farhat
Owner
Associate Degree
4,393 satisfied customers
Dtc, brake, and check engine lights are on. all in yellow.
dtc, brake, and check engine lights are on. all in yellow. car seems to be running fine. cruise control not working. … read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 satisfied customers
Actually my engin oil was finished and when car engine went
Actually my engin oil was finished and when car engine went off … read more
internal88
internal88
Product Manger
Bachelor's Degree
623 satisfied customers
Dynamic drive inactive fault, if engine is shut off with
dynamic drive inactive fault , if engine is shut off with fault present all power is removed and there is no power to car system it seem as though the battery is disconnected. … read more
Steve
Steve
BMW Expert
24,861 satisfied customers
The mechanic asked for the engine seize and mileage covered
the mechanic asked for the engine seize and mileage covered which I have provided without a response. He said he tried calling me without going through. So he can reply by writing … read more
Chad Farhat
Chad Farhat
Owner
Associate Degree
4,393 satisfied customers
Engine oil doesnot come the the camshaft and case resulting
Engine oil doesnot come the the camshaft and case resulting to seizure of the camshaft. After replacing the case and camshaft, we started it and the engine seized and would not start again. Do I need … read more
Gunvir Singh
Gunvir Singh
1,817 satisfied customers
Engine Warning light,,,yellow engine outline...book says
Engine Warning light,,,yellow engine outline...book says "MIP"...runs rough on restart...Switched out gas filler cap...sometimes after fill up the light goes out....new cap not a fix...vacuum leak? … read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 satisfied customers
Check engine light came on, when engine turned off
check engine light came on, when engine turned off "trans-fail safe" indicator...cleared same day... … read more
Chad Farhat
Chad Farhat
Owner
Associate Degree
4,393 satisfied customers
Engine starts but runs rough, engine starts but runs rough,
engine starts but runs rough JA: Will the headlights turn on? Is the battery fully charged? Customer: engine starts but runs rough JA: What is the model/year of your BMW? Customer: 535i 1985 JA: Are y… read more
Steve
Steve
BMW Expert
24,861 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