Audi

Audi repair questions? Ask a mechanic for answers ASAP

Ask an Expert,
Get an Answer ASAP!

Audi a4 emission control light has just come on but all

Customer Question
Audi a4 emission control...

Audi a4 emission control light has just come on but all running ok

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

The yellow engine light on the dash

Mechanic's Assistant: What year is your A4?

2005 cabriolet

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

Only just come on so have not tried to fix so far

Submitted: 10 months ago.Category: Audi
Show More
Show Less
Ask Your Own Audi Question
Answered in 15 minutes by:
9/21/2017
Audi Mechanic: Todd M, ASE Certified Technician replied 10 months ago
Todd M
Todd M, ASE Certified Technician
Category: Audi
Satisfied Customers: 1,902
Experience: Technician at Montgomery Motors
Verified

Hello. My name is ***** ***** I will be assisting you today. When was your last time having the vehicle serviced? This issue could be caused by many different things like the O2 sensor, cam sensor, spark plugs, etc. This light means that there is a trouble code stored in the system. The first action that needs to be taken is to have the vehicle scanned for trouble codes. The code that is retrieved will direct you towards the problematic area, and then repair can begin. If you are near your local auto parts store, then they usually offer free vehicle scanning. I know that Autozone and Advance does. Once you retrieve the code, if you need further information on the issue, you can provide it to me here, and I will be able to give you a complete description and understanding of the issue.

Ask Your Own Audi Question
Audi Mechanic: Todd M, ASE Certified Technician replied 10 months ago

Just as a reminder, if you have found this information helpful, please do not forget to rate the service, as it is necessary in order for experts to receive credit for answers provided. Thanks again.

Ask Your Own Audi Question
Audi Mechanic: Todd M, ASE Certified Technician replied 10 months ago

If you need further assistance, just let me know, and I will be happy to help.

Ask Your Own Audi Question
Audi Mechanic: Todd M, ASE Certified Technician replied 10 months ago
If you require more information on this issue and/or are not satisfied, let me know, please, and I will attempt to assist you further on this. I hope this information points you in the right direction. If you have any further questions or concerns on this issue, feel free to ask. If you are satisfied, and have found this information helpful, a positive rating would be greatly appreciated. Thank you.A positive rating does not close the session. We will still be able to communicate, and I will still continue to assist you with this issue as needed.
Ask Your Own Audi Question
Was this answer helpful?

How JustAnswer works

step-image
Describe your issueThe assistant will guide you
step-image
Chat 1:1 with an audi mechanicLicensed Experts are available 24/7
step-image
100% satisfaction guaranteeGet all the answers you need
Ask Todd M Your Own Question
Todd M
Todd M
Todd M, ASE Certified Technician
Category: Audi
Satisfied Customers: 1,902
1,902 Satisfied Customers
Experience: Technician at Montgomery Motors

Todd M 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

1,709 satisfied customers

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

Matt

Matt

Engineer

586 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

369 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

250 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
Soft top please lower storage box message when I try to
soft top please lower storage box message when I try to lower top … read more
Kevin
Kevin
workshop foreman /master tech/mot tester
1 satisfied customers
I have a comunication problem with certain modules, Error
I have a comunication problem with certain modules, Error codes ECM 18043 18107, Cent Elec, 01317 00474, HVAC, 01317 00474, … read more
Danny
Danny
Owner, lead mechanic
High School or GED
3,963 satisfied customers
I have a 2003 audi a4 cabriolet water was on the interior
I have a 2003 audi a4 cabriolet water was on the interior floor, as a result Windows alarm interior lights all not working. … read more
kyle swart
kyle swart
Certificate Of Completion, Automotive Technology
327 satisfied customers
2006 Audi A4 cabriolet 1.8L will not start. They don't look
They don't look corroded. I get lights, no horn, locks and unlocks fine. Just doesn't seem to be a battery issue. … read more
kyle swart
kyle swart
Certificate Of Completion, Automotive Technology
327 satisfied customers
Getting a p2006 and p2007 codes, p2006 also p2007, a4
I just started looking, my mech did a reset will check tomorrow for it … read more
vwtech0405
vwtech0405
VW Technician
Associate Degree
8,868 satisfied customers
I have a 2005 audi a4 cabriolet and the air bag light won't
I have a 2005 audi a4 cabriolet and the air bag light won't go out ....doesn't throw an error code either … read more
jim
jim
Vocational, Technical or Trade Scho
702 satisfied customers
I have a 2007 a4 Audi cabriolet that starts and shuts off
I have a 2007 a4 Audi cabriolet that starts and shuts off after 2-3 seconds also have no dash lights and no codes are lit… read more
Wolfgang
Wolfgang
11 satisfied customers
Audi Cabriolet: Hello, I just bought a 1994 Audi cabriolet
Hello, I just bought a 1994 Audi cabriolet automatic and the emission control light has come on and I have notice lag in picking up speed. However, after car get up to speed it seems to run fine. Ligh… read more
Roman
Roman
Master Technician
Associate Degree
366 satisfied customers
audi A4: 2007 and the yellow emissions light has come
I have an audi A4 2007 and the yellow emissions light has come on, is this a valve or a filter, what should I do now????… read more
vwtech0405
vwtech0405
VW Technician
Associate Degree
8,868 satisfied customers
2005 audi a4 cabriolet: check engine light..rpms..new ignition
2005 audi a4 cabriolet 1.8 check engine light flashing. Rough idle and unable to hold rpms. I bought a new ignition could and replaced one at a time but the issue didn't go away after each replacement… read more
AudiDoc
AudiDoc
Independent Audi Shop Owner
Bachelor's Degree
1,709 satisfied customers
audi a4 cabriolet: roof wont..wont open..gets stuck..wont close
I have a audi a4 cabriolet 2003. The roof wont open up just gets stuck midway and it wont close any ideas???… read more
supermechanic
supermechanic
Service consultant
Vocational, Technical or Trade Scho
10 satisfied customers
2003 Audi A4 Cabriolet: no ill noises, The dash indicator light
Hi, I have a 2003 Audi A4 Cabriolet. I've never had a problem opening and closing the top but last week, I was opening it and it simply stoppedabout 20% of the way into the process. There was no ill n… read more
supermechanic
supermechanic
Service consultant
Vocational, Technical or Trade Scho
10 satisfied customers
Audi Cabriolet: battery down..auto has meager 26,000 miles)
I have a 2005 A4 Audi Cabriolet. I loaned the car to a friend who some wore the battery down (battery was installed Feb. 2011 and auto has meager 26,000 miles). Road service restored battery but syste… read more
vwtech0405
vwtech0405
VW Technician
Associate Degree
8,868 satisfied customers
Audi A4 Cabriolet: Im driving..engine light has come
Hi. I'm on holiday in France, Toulouse , and I'm driving an Audi A4 Cabriolet (2003). The engine light has come on (engine managment system). i took it to an Audi garage yesterday and he turned the li… read more
vwtech0405
vwtech0405
VW Technician
Associate Degree
8,868 satisfied customers
a4 avant: emission control light..losing power..accelerating..1.8T
emission control light is blinking, car is juddering and losing power/ not running at full power/ not accelerating at all like normal. How far can i drive it and what is going on. audi a4 avant 1.8T 2… read more
Danny
Danny
Owner, lead mechanic
High School or GED
3,963 satisfied customers
2003 audi a4 cabriolet: spare car sits..start car..stall..illuminated
i bought a used 2003 audi a4 cabriolet in 2004 with 23000 miles. it now has 48000 miles it's a spare car sits in drive way during winter and used on weekends (long island ny) 3 weeks ago my daughter w… read more
David
David
Shop Foreman / Lead Technician
ASE Master and L1+ VW Master Techni
2,315 satisfied customers
I have a 2003 Audi A4 Cabriolet which seems to be having computer
I have a 2003 Audi A4 Cabriolet which seems to be having computer problems. As I am driving the car, the gear (P,R,N & D) lights on the dash all flash at me at the same time instead of just highlighti… read more
Jake
Jake
Audi Technician
Vocational, Technical or Trade Scho
2,110 satisfied customers
2003 Audi A4 1.8t Check Engine Light On PO411, combo valve,
2003 Audi A4 1.8t Check Engine Light On PO411, combo valve, secondary air pump, vac lines Replaced, code cleared . test drive monitors run, last to run secondary air as soon as it runs code po 411 pop… read more
supermechanic
supermechanic
Service consultant
Vocational, Technical or Trade Scho
10 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