Audi

Audi repair questions? Ask a mechanic for answers ASAP

Ask an Expert,
Get an Answer ASAP!

A4 2007, engine vibrates on drive. 97k. Computer diagnostic…

Customer Question
A4 2007, engine vibrates...

A4 2007, engine vibrates on drive

Mechanic's Assistant: How many miles are on the car? Is it an automatic or a manual transmission?

97k

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

Computer diagnostic says no fault

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

There is engine light

Submitted: 3 months ago.Category: Audi
Show More
Show Less
Ask Your Own Audi 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 13 minutes by:
12/31/2017
Audi Mechanic: Matt, Engineer replied 3 months ago
Matt
Matt, Engineer
Category: Audi
Satisfied Customers: 22,896
Experience: Mechanical Engineer with 20 years experience in the auto industry, 8 yrs in formula 1 engine testing
Verified

Hello and welcome to Just Answer

can you tell me if the car vibrates only when accelerating? or does the vibration happen at 1 road speed?

also if there's an engine light this typically means one or more of the sensors has failed or has a faulty connection.

The fault can be something quite simple and nothing that’s going to stop the car to something quite major that will reduce engine power and possibly stop the engine

The ECU senses this and may put the car into 'limp home' mode which typically limits the revs and the amount of power available. Usually the car is safe to drive for a short distance as the mode is intended is intended to get you home without incurring any engine damage

The quickest route to repair is to have the car plugged into a diagnostic machine which will read off the fault code stored in the ECU (providing the light is still on at this point) and indicate which sensor has failed or whether the fault is more serious.

You can do a very rough and ready check yourself by unplugging sensors one at a time and seeing if any of them change the driving condition which would indicate the most recently unplugged sensor is the faulty one. This method is not foolproof though and reading a fault code off is the better method

Ask Your Own Audi Question
Customer reply replied 3 months ago
did check with computer, but no fouls found
Audi Mechanic: Matt, Engineer replied 3 months ago

OK

if you have a check engine light but fault is coming up with a regular OBD scan tool then its likely its one of the more subtle faults that need the dealer level kit to diagnose / extract the code

does the vibration occur at a set speed?

Ask Your Own Audi Question
Was this answer helpful?
Ask Matt Your Own Question
Matt
Matt
Matt, Engineer
Category: Audi
Satisfied Customers: 22,896
22,896 Satisfied Customers
Experience: Mechanical Engineer with 20 years experience in the auto industry, 8 yrs in formula 1 engine testing

Matt 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

22,896 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 am having issues with the check engine light coming on and
I am having issues with the check engine light coming on and flashing and my car running very shakey … read more
baddad1
baddad1
technician
High School or GED
5 satisfied customers
I have a 2005 Audi A8 and my pump well I only come on for a
I have a 2005 Audi A8 and my pump well I only come on for a half of a minute when the key is parsley turned on and then the lift cycle is grayed out along with dynamic. And when I turn the key complet… read more
Danny
Danny
Owner, lead mechanic
High School or GED
3,963 satisfied customers
2001 TT, the turn signals blink two or three times then
2001 TT, the turn signals blink two or three times then stop. If I keep turning them on after about the third try they will continue to blink until turn is complete. The four way flashers seem to work… read more
vwtech0405
vwtech0405
VW Technician
Associate Degree
8,868 satisfied customers
2005 a4 3 liter, it miss fires on cyl #3 at take off, we
2005 a4 3 liter, it miss fires on cyl #3 at take off, we have verified the plus colis and injector are fine … read more
eurotec
eurotec
Vice President / Manager
Associate Degree
11 satisfied customers
I have "gearbox malfunction: you can drive further" yellow
I have "gearbox malfunction: you can drive further" yellow error around 160-180 km/h with no inpact on performance. P0730 on diagnostics. … read more
Wolfgang
Wolfgang
6 satisfied customers
My 2007 A4 2.0 smokes black if I try to accelerate to much.
My 2007 A4 2.0 smokes black if I try to accelerate to much. I have to "baby" it at take off. Otherwise, it smokes and then Bogs down. Had to replace Spark plugs twice in last month???? … read more
vwtech0405
vwtech0405
VW Technician
Associate Degree
8,868 satisfied customers
Need replace Audi Q3 airbag control module.Do you know SVM
Hi,need replace Audi Q3 airbag control module.Do you know SVM code? … read more
Wolfgang
Wolfgang
6 satisfied customers
I have a 2015 a5 convertible. Where is the usb connector?
I have a 2015 a5 convertible. Where is the usb connector? … read more
eurotec
eurotec
Vice President / Manager
Associate Degree
11 satisfied customers
Just concerned that UV rays will come thrru w/ only opaque
Just concerned that UV rays will come thrru w/ only opaque close … read more
Jake
Jake
305 satisfied customers
Wont start, troubleshooting. Battery is brand new, starter
battery is brand new, starter is brand new, working up the chain now … read more
AudiDoc
AudiDoc
Independent Audi Shop Owner
Bachelor's Degree
1,695 satisfied customers
It needs a new engine. 108,000. A4 2009. No can't fix it. I
I had to mechanics say it needs a new engine but they can't do it… read more
eauto
eauto
self employed
High School or GED
74 satisfied customers
Just trying to figure out how to remove the rear seat back
Just trying to figure out how to remove the rear seat back rest on my 2009 Audi A4 Cabriolet in order to get my ski rack cushion unstuck. … read more
Mechanic01
Mechanic01
2,358 satisfied customers
Audi TT Flashing engine light and EPC are on -2013 w/40k mi
Audi TT Flashing engine light and EPC are on -2013 w/40k mi shuddering and no power … read more
internal88
internal88
Product Manger
Bachelor's Degree
623 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
The soft top of my 2010 A5 won't open or close. Not by my
hi, the soft top of my 2010 A5 won't open or close … read more
AudiDoc
AudiDoc
Independent Audi Shop Owner
Bachelor's Degree
1,695 satisfied customers
My 2002 A4 1.8t Avant Quattro wouldn't start the other
Hello, My 2002 A4 1.8t Avant Quattro wouldn't start the other morning. I tried again when I got home from work. It would crank and I could hear some relays clicking behind the dash. Still no start. I … read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 satisfied customers
Just purchased 2005 allroad quatro. Cant get it to level
Just purchased 2005 allroad quatro. Cant get it to level properly.front is all the way down back end all the way up at one point it was diagonally off as well. … read more
kyle swart
kyle swart
Certificate Of Completion, Automotive Technology
205 satisfied customers
Trying to locate the crank lock port on my Audi 4.2 engine
Trying to locate the crank lock port on my Audi 4.2 engine code BHF. I have tried alldata and Erwin for the information. Neither one of those sources gives the right location. Neither diagram matches … read more
kyle swart
kyle swart
Certificate Of Completion, Automotive Technology
205 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