Audi

Audi repair questions? Ask a mechanic for answers ASAP

Ask an Expert,
Get an Answer ASAP!

Emission light that does not go off, On the Audi A4

Customer Question
Emission light that does...

Emission light that does not go off

Mechanic's Assistant: Just to clarify, what are the exact lights you're talking about?

On the Audi A4 dashboard I checked the manual and it says it the emission light

Mechanic's Assistant: What year is your A4?

2009

Mechanic's Assistant: Are you fixing your A4 yourself? What have you tried so far?

Took it for the 3rd time now to the mechanic Volkswagen and Audi mechanic

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

No thanks

Submitted: 8 months ago.Category: Audi
Show More
Show Less
Ask Your Own Audi Question
Answered in 2 minutes by:
9/13/2017
Audi Mechanic: peterpete190, Technician replied 8 months ago
peterpete190
peterpete190, Technician
Category: Audi
Satisfied Customers: 32,110
Experience: Auto Technician with more then 17 years ecperience.Past ASE and other certifications.
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.

Did the mechanics say what has to be done to correct this fault here or did they check for any fault codes set at all with this issue?

Let me know,thanks Pete

Ask Your Own Audi Question
Customer reply replied 8 months ago
They regulated the flaos
Customer reply replied 8 months ago
They regulated the flaps
Audi Mechanic: peterpete190, Technician replied 8 months ago

Is there any codes setting now or are they saying you need to drive to reset the emissions at all?

Ask Your Own Audi Question
Customer reply replied 8 months ago
they say I need to drive
Audi Mechanic: peterpete190, Technician replied 8 months ago

O.k.,this drive has to be done to complete the emission monitors.This can be an extensive drive in some cases as it can take time and certain parameters/signals for the computer to relearn these.Below is a procedure I have used in the past several times before to get this to quickly run and pass.If it runs and passes the light should go off.If it does not go off after doing this drive cycle below once or twice then the mechanic/shop needs to re check for fault codes as there will be another component that is at fault causing this issue needing repaired.

Cold Start
The barometric pressure (BARO) is more than 81 kPa.
The engine coolant temperature (ECT) is between (41-86°F).
The intake air temperature (IAT) is between (41-86°F).
The start-up ECT and IAT are within (16°F) of each other.
The battery voltage is between 9-16 volts.
The fuel level is between 15-85 percent.

Important: Whenever the ignition is turned ON, ignition positive voltage is supplied to the HO2S heaters. After verifying the enable criteria, turn OFF the ignition for approximately 5 minutes to allow the sensors to cool before continuing with the test. Once the engine is started, DO NOT turn the engine OFF for the remaining portion of the set procedure.

Turn OFF all of the accessories,
Set the vehicle parking brake.
Verify the transmission is in Park for automatic transmissions and Neutral for manual transmissions.
Start the engine and allow the engine to idle for 2 minutes.

Acceleration at part throttle to (55 mph) with this speed maintained until the engine reaches operating temperature. This may be up to 8 minutes depending on the start up coolant temperature.
Continued operation under these conditions for an additional 6 minutes.

Acceleration at part throttle to (45-55 mph) with this speed maintained for 2 minutes.
Deceleration to (0 mph).
Engine idling for 2 minutes while the following criteria is maintained:
The service brake is depressed.
The automatic transmission is in drive.
The manual transmission is in neutral with the clutch pedal depressed

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.Keep in mind in some cases it can be difficult to fully diagnose or help repair your vehicle without seeing it and I work on delivering the best possible answer from what I see to work with.

Thanks Pete

Ask Your Own Audi Question
Was this answer helpful?
Ask peterpete190 Your Own Question
peterpete190
peterpete190
peterpete190, Technician
Category: Audi
Satisfied Customers: 32,110
32,110 Satisfied Customers
Experience: Auto Technician with more then 17 years ecperience.Past ASE and other certifications.

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:

AudiDoc

AudiDoc

Independent Audi Shop Owner

1,695 satisfied customers

I've been working on Audis since I was 18 and own an independent Audi repair and performance shop

Matt

Matt

Engineer

569 satisfied customers

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

Chris (aka - Moose)

Chris (aka - Moose)

Technician

351 satisfied customers

16 years of experience

Mike Kelly

Mike Kelly

Audi Mechanic

264 satisfied customers

17 years experience as a auto mechanic, foreign and domestic.5 years running my own repair business.

Tim Mohr

Tim Mohr

ASE MASTER TECH

248 satisfied customers

30 YRS EXPERIENCE, FOREIGN AND DOMESTIC, GAS AND DEISEL

Michael Miller

Michael Miller

ASE Certified Technician

241 satisfied customers

ASE Master Technician. Audi certified, including R8 and TDI (clean diesel).

Quattro King

Quattro King

Technician

140 satisfied customers

ASE Master Certified, 20+ yrs European experience

< Previous | Next >

Related Audi Questions
I REMOVED ALTERNATOR AND ANTIFREEZE AND WATER CAME IS THAT
I REMOVED ALTERNATOR AND ANTIFREEZE AND WATER CAME IS THAT NORMAL … read more
Kevin
Kevin
workshop foreman /master tech/mot tester
1 satisfied customers
The EPC sensor and 4000 rpm limit warning have come on in my
The EPC sensor and 4000 rpm limit warning have come on in my 2014 S7. Both those lights as well as the check engine light came on a week ago. Took it to shop; they said they found various error codes,… read more
vwtech0405
vwtech0405
VW Technician
Associate Degree
8,868 satisfied customers
We locked our only key in the trunk of my A4 Convertible.
We locked our only key in the trunk of my A4 Convertible. Tried reaching through ski bag but can't reach. Is there any way to access the trunk from back seat? (Release button in driver door doesn't wo… read more
Eric
Eric
Retired
N/A
14,436 satisfied customers
Super happy about the one key fob working. We went to the
Hey Kevin. Super happy about the one key fob working. We went to the garden centre and it was so nice to not have to crawl in the car to open the back hatch! 5 stars.....Can you help now with the lock… read more
Kevin
Kevin
workshop foreman /master tech/mot tester
1 satisfied customers
I have a 2001 Audi a6 quattro 4.2l and the check engine
I have a 2001 Audi a6 quattro 4.2l and the check engine light has come on. I got back codes P0491,P0492. Both secondary air injection pump and relay errors. Should/can I drive it like that? And if so,… read more
Kevin
Kevin
workshop foreman /master tech/mot tester
1 satisfied customers
I have a 2005 Audi A4 Quattro 1.8t six-speed manual, with
Hello I have a 2005 Audi A4 Quattro 1.8t six-speed manual , with code P0011 16395 camshaft intake ( retard set point not reached over-advanced ) , cam chain tensioner and cam position sensor were both… read more
kyle swart
kyle swart
Certificate Of Completion, Automotive Technology
223 satisfied customers
I just bought a Tech VCDS - version 18.2. WHile I understand
I just bought a Ross Tech VCDS - version 18.2. WHile I understand software quite well (work in the industry) the Ross Tech has me generally baffled with what it is showing me, telling me, giving me ac… read more
Kevin
Kevin
workshop foreman /master tech/mot tester
1 satisfied customers
We had the oil in my wife's q5 changed and the light came on
we had the oil in my wife's q5 changed and the light came on saying we were a quart low … read more
Kevin
Kevin
workshop foreman /master tech/mot tester
1 satisfied customers
Car will not start,even after charging.Can I use jump leads
Car will not start,even after charging.Can I use jump leads to start? … read more
Anthony P.
Anthony P.
high school
320 satisfied customers
My car won't start. I had removed the battery but upon
my car won't start. I had removed the battery but upon reconnecting the battery, the speedometer is in safe mode … read more
peterpete190
peterpete190
Technician
32,110 satisfied customers
I'm replacing the starter on my 2001 Audi Allroad 2.7t. I
I'm replacing the starter on my 2001 Audi Allroad 2.7t. I have the car on jackstands, have removed the wires and both the top and bottom bolts on the starter, and am having trouble getting it out.It h… read more
Danny
Danny
Owner, lead mechanic
High School or GED
3,963 satisfied customers
After turning my 2002 audi A6 3.0L off, both cooling fans
After turning my 2002 audi A6 3.0L off, both cooling fans keep running at full speed for about 15min. … read more
Wolfgang
Wolfgang
7 satisfied customers
I have been away for 3 weeks and my 2015 Audi TT Roadster
I have been away for 3 weeks and my 2015 Audi TT Roadster has sat idle in the garage for this time. I am now unable to open the doors or boot. I think it may have a flat battery. Neither the remote or… read more
Eric
Eric
Auto Technician
589 satisfied customers
2005 a8 4.2, i screwed up doing the timing belt and niw have
2005 a8 4.2 , i screwed up doing the timing belt and niw have everything out of whack . How can i get the cams and crank in position so i can rotate the engine … read more
Wolfgang
Wolfgang
7 satisfied customers
I have a Audi Allroad 2.7t that is puffing smoke.. I have
I have a Audi Allroad 2.7t that is puffing white smoke.. I have tested for a headgasket leak and all the cylinders have good pressure.. I replaced the turbos.. I have checked the fuel injectors.. I ha… read more
Andrew Martin
Andrew Martin
Level A Technician
Technical Certificate
353 satisfied customers
I have a TTRoadster 2009 and the garage came up with a
I have a TTRoadster 2009 and the garage came up with a trouble code O5386, the car shutters when you start off from a stop but only once it warms up … read more
Danny
Danny
Owner, lead mechanic
High School or GED
3,963 satisfied customers
Audi TT 2002 coupe. Door locks. Key fobs don't work, dealer
Audi TT 2002 coupe. Door locks. Key fobs don't work, dealer says there is something wrong with the door locks. I can lock the doors from inside, and unlock them. When I use the key (works fine in the … read more
kyle swart
kyle swart
Certificate Of Completion, Automotive Technology
223 satisfied customers
I have a 1990 Audi Quattro 7a and was driving around and
I have a 1990 Audi Quattro 7a and was driving around and noticed a flapping sound only during acceleration.… read more
Danny
Danny
Owner, lead mechanic
High School or GED
3,963 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