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I have a 2001 a4 1.8t. The CEL is on for code P0420 cat
Hi. I have a 2001 a4 1.8t. The CEL is on for code P0420 cat converter efficiency is low. Recently it has stumbled at idle and recovered and has also had a high idle sometimes about 1200 rpm. If I turn… read more
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Matt
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I just installed a new motor in my b5 1.8t and the
I just installed a new motor in my b5 1.8t and the speedometer works for about 5 minutes when the car is first started then it stops … read more
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I have a 2003 audi a4 1.8t quattro. I ran it through the car
i have a 2003 audi a4 1.8t quattro. I ran it through the car wash, now it acts like its not getting the gas unless you drive it in the high RPM s. At low speed it doesnt want to go. Check engine light… read more
BOBBYSS
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2004 Audi A4 Quattro 1.8T 6 speed Base. Car starts but wont
2004 Audi A4 Quattro 1.8T 6 speed Base. Car starts but wont move. I can shift from reverse to 6th gear, but wont move at all, Just RPM's go up, No unusual noises, if car is on and in any gear, if i le… read more
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I just installed a front mount intercooler on my 99 audi a4 1.8t and now it won't idle right our go over 1200 rpms why is this. my guess would be my house from the front mount to the diverter valve is… read more
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Audi A4 Quattro: Hi. I have a 98 audi a4 1.8t Quattro. Problem
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Audi A4 Quattro: I have a 07 Audi A4 quattro which I bought
I have a 07 Audi A4 quattro which I bought CPO. I have been having an on going issue with oil consumption with the engine. I have had the pistons and rings replaced and the turbo as well but it is sti… read more
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Audi A4 Quattro: I have a 2001 Audi A4 1.8T Quattro, manual
I have a 2001 Audi A4 1.8T Quattro, manual transmission and the engine check light turned on a couple of days ago. It was time for some routine maintenance so I took it into my regular mechanic (not t… read more
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I have an Audi A4 1.8t 2002 with slightly rough idle when stopped
I have an Audi A4 1.8t 2002 with slightly rough idle when stopped in gear or park.I had timing belt replaced,new spark plugs and coils.All fluids are at correct level.engine has done 96000km.outsie te… read more
Danny
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2001 Audi A4: My check engine..abs light..Brake light keeps blinking
I purchased a 2001 Audi A4 1.8T Quattro from a private buyer lastnight. My check engine was on, then turned off all of the sudden after putting high octane fuel. The ABS light in on while the Brake li… read more
Matt
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2001 audi a4 quattro: manual trans stalls wont start..ecu..timing belt
2001 audi a4 quattro wagon 1.8t manual trans stalls wont start right away/ new maf/new recall coils / fuel injector service/new bg fuel kit/ecu power supply relay/new evap purge valve pipe/timing belt… read more
vwcrazynm
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Audi A4 Quattro I have a 2006 audi a4 2.0t Quattro. Recently
I have a 2006 audi a4 2.0t Quattro. Recently experienced fuel cutoff with WOT at around 4000-5000rpms. Threw a CEL 2 days ago and when I started my car this morning the CEL cleared. Luckily my auto pa… read more
AudiDoc
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2005 Audi A4: turbo..There is a slight hesitation at take off
We have a 2005 Audi A4 with turbo. There is a slight hesitation at take off. What is the probable cause and fix for this issue?… read more
Justin
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2001 A4: I recently purchased a new aftermarket diverter valve..hose
Hello, I recently purchased a new aftermarket diverter valve for my 2001 A4 1.8t manual. the new valve has a place on top for a small vacuume hose but the old one did not. I installed with some modifi… read more
AudiDoc
AudiDoc
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1997 audi a4: quattro..it possible to put the 2.7 biturbo s4 engine
I was just wondering. I have a 1997 audi a4 1.8t quattro and I love 2000-2001 s4's, is it possible to put the 2.7 biturbo s4 engine in my a4?… read more
JOE AUDI
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Corvette: turbo..rod or main bearing noise..revs..intake..car started
Hi again Audi Doc, I recently tried to add an aftermarket turbo diverter on my 01 A4 1.8t, but caused another problem - and there may have been something already in place, so here is my detailed descr… read more
AudiDoc
AudiDoc
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Audi a4: 1.8T..quattro..a high pitched noise after its warmed..models
I have a Audi a4 2004 1.8T quattro. The car is making a high pitched noise after it's warmed up. I've been told it's a crank case ventilation problem that is common on these models. I have less than 5… read more
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1997 audi a4: there is a clicking sound..it roll..clutch is engauged
im an owner of a 1997 audi a4 1.8t quattro manual and i have a problem i believe with my trani, i know my car quite well and cant put my finger on this problem. there is a clicking sound while i put t… read more
AudiDoc
AudiDoc
Independent Audi Shop Owner
Bachelor's Degree
1,709 satisfied customers
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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

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

Chris (aka - Moose)

Chris (aka - Moose)

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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

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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.

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