2001 Audi A4 Common Problems, Issues, Recalls, and Reliability

• 2001 Audi A4 Oil Leaks From Camshaft Chain Tensioner and Valve Cover Gaskets

  Engine oil leaks are common from the valve cover gaskets and camshaft chain tensioner gasket.

• 2001 Audi A4 Ignition Coil, Ignition Wires, and Spark Plugs May Fail

  An ignition coil or spark plug may fail unexpectedly resulting in an engine misfire and possible illumination of the Check Engine Light . Vehicles equipped with spark plug wires may also develop a misfire caused by a failed spark plug wire.

• 2001 Audi A4 Rainwater May Accumulate in Plenum Tray Due to Clogged Drains

  Clogged drains can allow rainwater to accumulate in the plenum tray (at the base of the windshield). The water may leak into the vehicle's interior, brake booster, or electrical components, which can lead to major problems. Our technicians recommend keeping the tray clear of leaves, pine needles, and other debris.

• 2001 Audi A4 Check Engine Light Due to Vacuum Leaks, Oxygen Sensor, or Catalytic Converter Fault

  Vacuum leaks, oxygen sensor failure, and catalytic converter efficiency faults can cause the Check Engine Light to illuminate.

• 2001 Audi A4 Inspection of Water Pump and Timing Belt

  The water pump may fail resulting in engine overheating and possible timing belt damage. Overheating and/or timing belt failure can result in very expensive engine repairs. As a precaution, it is recommended to inspect the timing belt and water pump at regular intervals.

• 2001 Audi A4 Premature Wear in Multi-Link Suspension Components May Cause Noise

  Premature wear in various multi-link suspension components can cause noises that are difficult to diagnose. Worn suspension parts can also cause uneven tire wear and create steering alignment problems.

• 2001 Audi A4 Check Engine Light Due to Faulty Torque Converter

  A problem with the torque converter can cause the Check Engine Light to illuminate.

• 2001 Audi A4 Inspect CV Boots and Joints at Each Service

  Our technicians recommend having the constant velocity (CV) boots and CV joints inspected at each service. Servicing torn CV boots early can prevent the need to replace the CV half shaft or CV joint.

• 2001 Audi A4 ABS Light Due to ABS Control Module Failure

  The anti-lock brake system (ABS) control module may fail causing the ABS light to illuminate. Failed modules should be replaced to restore ABS operation.

• 2001 Audi A4 Flasher Relay Failure Can Cause Erratic Turn Signal Operation

  Erratic turn signal operation can be a result of a failing turn signal flasher relay which will require replacement.

• 2001 Audi A4 Use correct oil/filter to prevent sludge accumulation

  To avoid sludge accumulation inside the engine, our technicians recommend using the proper synthetic oil with the appropriate oil filter .

• 2001 Audi A4 Digital Display on Instrument Cluster May Fail

  The digital display portion of the instrument cluster may fail. Our technicians tell us the entire instrument cluster will need to be replaced to correct this concern.

• 2001 Audi A4 No Start after Refueling and Popping Noise from Trunk

  Popping sounds from the rear of the vehicle may be heard moments after starting the engine, or when slowing to a stop. This noise is from the leak detection pump filling the fuel tank with air, and releasing to retest the system when it finds a fault. The sequence of faults identifying this issue are as follows:

  • Succession of loud pops from rear of vehicle
  • Pops go away, and fuel economy decreases
  • Check engine light illuminates
  • OBD trouble code P2404 and/or P0441 is stored
  • Engine will not start after refueling (must crank for over 30 seconds)
  • Vibration when slowing to a stop

  The cause is a valve which is mounted on the front of the intake manifold, commonly called the N80 valve, or EVAP system purge valve. The valve is designed to open under specific circumstances, but a worn valve will remain open at all times, preventing the pressurization of the fuel tank.

  Correction of the issue is to replace the N80 valve with the latest revision.

• 2001 Audi A4 Water From Clogged Sun Roof Drains May Damage Control Modules

  Clogged sunroof drains can allow water to enter the interior and accumulate under the carpet where various control modules are mounted. Over time, the accumulated moisture can damage the control modules.

2001 Audi A4 Questions and Answers

Related Questions

• Audi A4 Brake Light On

  2001 AUDI A4, 4 CYL, AWD, MANUAL, 120, 000 MILES

  related to exterior-light, brake-light

  2001 Audi A4 Has new rotors and pads, the brake light will not stop blinking, they will not do emissions test with the light blinking @media(max-width: 960px) { .adt { display: none;padding:0;..

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• Audi A4 Car Trouble Engine Light On

  2001 AUDI A4, 6 CYL, AWD, AUTOMATIC, 90, 600 MILES

  related to warning-lights, check-engine-light

  I have a Audi 2001 A4 Quattro and My check engine light came on and I have a code reader and two codes came up P491 and P492 which stands for secondary air system bank one and secondary air system b..

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• Audi A4 Does The Hot Lead On A 2001 Audi A4 Symphony Radio...

  2001 AUDI A4, 105, 500 MILES

  related to interior, radio, fuse

  Having problems getting juice to the red/blue constant radio wire. @media(max-width: 960px) { .adt { display: none;padding:0; } } Sunday, January 22nd, 2012 AT 12:23 AM ..

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• Audi A4 No Interior Lights

  2001 AUDI A4, 163, 000 MILES

  related to interior, interior-lights

  Bought my a4 about 3mths ago and none of my interior lights are working I replaced the bulbs and checked the fuses but nothing. Brought it to an auto electrician and he cant help me either @medi..

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• Audi A4 Oil Pressure Light On When Driveing At 50 MPH Por More

  2001 AUDI A4, 92, 500 MILES

  related to warning-lights, oil-light

  The engine is 1.8T, The head was just rebuilt because the mechanic didn't have everything set correctly after replacing the Timing Belt Kit, resulting in some damage. Replaced some valves and head..

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• Audi A4 I Took The Cams Out Of A 2.8 30 Valve Audi. On The...

  2001 AUDI A4, 111, 824 MILES

  related to exhaust

  I took the cams out of a 2.8 30 valve audi. On the drivers side and the tensioner and cams all came apart. Are there marks from the factory on the intake and exhaust cams? So when I put the cams ba..

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• Audi A4 Would Like Instructions And Tool List On Changing...

  2001 AUDI A4, 540, 000 MILES

  related to general, tools

  Want to change serpinted belt, abs lite comes on sometime where do I check for short or wiring or could it be something else @media(max-width: 960px) { .adt { display: none;padding:0; } } ..

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• Audi A4 Advice To Buy It

  2001 AUDI A4, 4 CYL, AWD, AUTOMATIC, 174, 900 MILES

  related to general, used-car-advice

  I am looking for a car under budget of 5k and with affordable maintenance. I love Audi cars so I searched this car 2001 Audi A4 Everything is fine it looks a new car. I just wanna know is it w..

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• Audi A4 2001 Audi A4

  2001 AUDI A4, 4 CYL, 4WD, AUTOMATIC, 62, 000 MILES

  related to trouble-codes, p-codes-powertrain, p0400-p0499, p0411

  Had P0411 secondary air code repaired some vacumn lines now have I/M readiness incomplete how do I correct this @media(max-width: 960px) { .adt { display: none;padding:0; } } Sunday, M..

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• Audi A4 2001 Audi A4 Alarm/security System

  2001 AUDI A4, 4 CYL, 2WD, MANUAL, 100, 000 MILES

  related to security

  On hot days, (the car is black) the alarm system is activated for no apparent reason. In at least one instance, the alarm sounded when the system was not in the alarm mode. What could be cau..

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• Audi A4 2001 Audi A4 Dashboard Lights

  2001 AUDI A4, V8, 4WD, MANUAL, 85, 000 MILES

  related to interior, dashboard, light

  What does the EPC light mean on my dash is staying on while driving @media(max-width: 960px) { .adt { display: none;padding:0; } } Sunday, July 12th, 2009 AT 12:29 PM ..

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• Audi A4 2001 Audi A4 Low Oil Warning Light And Check Engine...

  2001 AUDI A4, 4 CYL, 4WD, MANUAL, 133, 000 MILES

  related to warning-lights, oil-light

  First: My check engine light came on few days ago, I take to Autozone to get fault code. They said either faulty air selenoid valve orfaulty air pump motor, Is this problem easy to fix? Second..

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• Audi A4 2001 Audi A4 Misreading Outside Temperature Sensor

  2001 AUDI A4, 4 CYL, AWD, AUTOMATIC, 130, 000 MILES

  related to body, ambient-temperature-sensor

  I've replaced my outside temperature sensor (twice in 2 weeks after having no luck with the first replacement). The problem is that intermittently my temperature reading on the instrument cluster r..

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• Audi A4 2001 Audi A4 Oil Light; Need Repairs?

  2001 AUDI A4, 4 CYL, AWD, AUTOMATIC, 65, 290 MILES

  related to warning-lights, oil-light

  I just bought a 2001 Audi a4 1.8t quattro with only 65k miles on it, and on the way home the oil light went on so when I got home I put about 3/4 of the oil container in, and it was fine. The next..

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• Audi A4 2001 Audi A4 Oil Pressure Warning Light.

  2001 AUDI A4

  related to warning-lights, oil-light

  Engine Mechanical problem 2001 Audi A4 4 cyl All Wheel Drive Manual Hi. Today after oil pressure warning light come on, the engine makes noise and shaking, I check oil level, still go..

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• Audi A4 2001 Audi A4 Oil Warning Light.

  2001 AUDI A4, 4 CYL, AWD, MANUAL, 130, 000 MILES

  related to warning-lights, oil-light

  Hi. Thank you for your respond, This morning the oil warning light come on and the engine make noise but it happen only when I change from neutral to first and second gear at low RPM (under 2000..

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• Audi A4 2001 Audi A4 Out Side Air Temp Sensor Location?

  2001 AUDI A4, 4 CYL, AWD, MANUAL, 131, 000 MILES

  related to body, ambient-temperature-sensor

  I just wanted to see if any one knew where the outside temp sensor is located so I could start to diagnose the problem. Maybe its no connected well, or wires failing, or I need a new sensor? ..

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• Audi A4 2001 Audi A4 Power Locks

  2001 AUDI A4, 4 CYL, FWD, MANUAL, 114, 000 MILES

  related to body, door, lock, switch

  I just bought this a4 1.8T and the power locks seem to have a problem. When I push the button from the drivers door there is a strange motor like noise that comes from the trunk near the gas cap. Bu..

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• Audi A4 2001 Audi A4 Smoking Car

  2001 AUDI A4, 4 CYL, 2WD, MANUAL, 175, 000 MILES

  related to exhaust, white-smoke-

  I fill up my car with a diesel oil and later it goes to the exhaust and it start smoking white smoke. The pistion have been checked their fine. @media(max-width: 960px) { .adt { display: none;pa..

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• Audi A4 2001 Audi A4 Timing

  2001 AUDI A4, 6 CYL, AWD, AUTOMATIC, 126, 000 MILES

  related to exhaust

  I'm trying to time my audi from scratch. Meaning I removed cams completely. I have the tool to line up the exhaust cams but how do I know if the intake cams are set right? @media(max-width: 960p..

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• Audi A4 2001 Audi A4 Wipers

  2001 AUDI A4, 4 CYL, 2WD, AUTOMATIC, 90, 000 MILES

  related to body, wiper, motor

  The wipers on this car work for about 5 swipes then stop at any given spot on the windshield, we have replaced the wiper motor and transmission, but cant figure out what to do next @media(max-..

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• Audi A4 Drivers Side Rack Boot Replacement

  2001 AUDI A4, 1.8L, 4 CYL, 4WD, AUTOMATIC, 186, 000 MILES

  related to steering, rack-and-pinion, replace-remove

  I replaced my steering rack boot which was old and cracked, and in the process it appears I added or did not do enough turns on the screw in link to the rack. I counted carefully but it seems like ..

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• Audi A4 Code P0441, Evap Solenoid

  2001 AUDI A4, 1.8L, 4 CYL, 4WD, AUTOMATIC, 186, 000 MILES

  related to trouble-codes, p-codes-powertrain, p0400-p0499, p0441

  I replaced my evap solenoid with a factory number replacement from Bosch. Checked the codes, erased them and it seemed to work as the light stayed off for a while. A week or so after (not too many ..

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• Audi A4 Power Steering Valve

  2001 AUDI A4, 1.8L, 4 CYL, 4WD, AUTOMATIC, 181, 300 MILES

  related to steering, hose

  I was wondering if anybody knew what this valve was in my old power steering return line hose for my car listed above A4 1, 8 quattro? Seems like the rack hums without them and I don't remember i..

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• Audi A4 Radiator Fan Fuse Blowing

  2001 AUDI A4, 2.0L, 4 CYL, FWD, AUTOMATIC, 90, 000 MILES

  related to engine-cooling, cooling-fan, fuse

  Within a few seconds of starting engine radiator fan fuse blows at end of dash, the fuse is 15 amp at position 9. I know most are listed as 5 amp at position 4. @media(max-width: 960px) { .adt ..

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• Audi A4 When I Open A Door It Didn't Show On The Dash That...

  2001 AUDI A4, 1.6L, 4 CYL, FWD, MANUAL, 140, 000 MILES

  related to body, door, symptoms, open

  Hello. When I open the driver side door or the passanger door it didn't show on the dash that the door is open. Even with the back doors didn't show on the dash that the door is open. The hud and th..

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2001 Audi A4 Maintenance and Repair

• Causes of 2001 Audi A4 Engine Vibration
• How To Use a 2001 Audi A4 Battery Charger
• 2001 Audi A4 Exhaust Smell Understanding Where The Problem Lies
• How To Tell If You Have a 2001 Audi A4 Faulty Hydraulic Lifter
• How To Repair a 2001 Audi A4 Tire Valve
• How To Use a Trickle Charger on your 2001 Audi A4
• 2001 Audi A4 Exhaust Manifold Leak Repair Cost: Average Prices To Expect
• Average 2001 Audi A4 Brake Repair Cost for Each Brake Problem
• Tips for Recharging your 2001 Audi A4 Battery
• Most Common Signs That Your 2001 Audi A4 Needs a Transmission Flush
• Burning Smell from 2001 Audi A4 - Understand What is Happening
• Causes of 2001 Audi A4 Engine Knock
• The Best 2001 Audi A4 Battery Brand To Use for Lasting Performance
• 2001 Audi A4 Tire Companies To Avoid
• 2001 Audi A4 Tire Alignment: How To Know When You Need It
• How To Tell If You Have a 2001 Audi A4 Faulty Engine Speed Sensor
• How To Tell If You Have a 2001 Audi A4 Faulty Head Gasket
• How To Repair 2001 Audi A4 Hail Damage
• How To Tell If You Have a 2001 Audi A4 Faulty Coil Pack
• How To Tell If You Have a 2001 Audi A4 Faulty Alternator
• Most Common 2001 Audi A4 Transmission Problems
• Using Nitrogen for 2001 Audi A4 Tire Inflation: Advantages Disadvantages
• How To Tell If You Have a 2001 Audi A4 Faulty Distributor
• Symptoms of Fried 2001 Audi A4 Piston Rings
• How To Tell If You Have a 2001 Audi A4 Faulty Coolant Temperature Sensor
• Advantages and Disadvantages of 2001 Audi A4 Radial Tires
• How To Reset The 2001 Audi A4 Tire Pressure Sensor Correctly
• How To Tell If You Have a 2001 Audi A4 Faulty Ecu
• Common 2001 Audi A4 Oil Pump Failure Symptoms
• My 2001 Audi A4 Smells: 7 Tips for Getting Rid of Bad Auto Odors
• 2001 Audi A4 Acrylic Car Paint: Understanding The Pros and Cons
• Understand 2001 Audi A4 Brake Noise for a Proper Diagnosis
• How To Tell If You Have a 2001 Audi A4 Faulty Mass Airflow Sensor
• 2001 Audi A4 Waxing Temperature - Understanding The Best Time To Wax Your Car
• How To Tell If Its Time for a 2001 Audi A4 Engine Rebuild
• How To Tell If You Have a 2001 Audi A4 Faulty Throttle Position Sensor
• Signs Your 2001 Audi A4 has a Faulty Transmission Filter
• 2001 Audi A4 Windshield Repair Quote: Average Prices On Common Repairs
• How To Tell When a 2001 Audi A4 Brake Rotors Need To Be Replaced
• What Happens If Your 2001 Audi A4 Runs Out of Engine Oil
• How To Repair a 2001 Audi A4 Aluminum Radiator
• 2001 Audi A4 Chrome Rim Repair: a How To Guide
• Average 2001 Audi A4 Tire Puncture Repair Cost
• The Best Way To Polish 2001 Audi A4 Paint: Two Methods To Consider
• Causes of 2001 Audi A4 White Exhaust Smoke
• What Should a Full 2001 Audi A4 Detailing Service Include
• What Does It Mean If You Have a 2001 Audi A4 Low Oil Pressure At Idle
• 2001 Audi A4 Wax Formula - Understanding What Its Made Of
• 2001 Audi A4 Polish and Wax: Are They The Same Which Comes First
• Understanding When You Should Wax Your 2001 Audi A4 : Hot or Cold Temperature
• 2001 Audi A4 Paint Types Pros and Cons of Each
• How To Mix 2001 Audi A4 Paint Properly So The Color Spreads Evenly
• 2001 Audi A4 Clear Coat Car Paint - Understanding The Pros and Cons
• How To Apply 2001 Audi A4 Paint Primer Correctly
• 2001 Audi A4 Spray Painting Techniques for a Proper Coat
• 2001 Audi A4 Windshield Scratch Repair: a How To Guide
• A Routine 2001 Audi A4 Maintenance Schedule Based On Engine Mileage
• 2001 Audi A4 Buyers Guide: Oil Free or Oil Air Compressor
• What To Do If You Start To Get 2001 Audi A4 Brake Smell
• Causes of 2001 Audi A4 Blue Exhaust Smoke
• When Should You Turn your 2001 Audi A4 Brake Rotors
• How To Repair a 2001 Audi A4 Leaking Gas Tank
• How To Tell If You Have a 2001 Audi A4 Faulty Manifold Pressure Sensor
• How To Tell If You Have a 2001 Audi A4 Faulty Oxygen Sensor
• What Happens If Your 2001 Audi A4 Runs Out of Coolant
• How Often Should You Replace Your 2001 Audi A4 Radiator Fluid
• 2001 Audi A4 Radiator Fluid: What To Use What To Avoid
• 2001 Audi A4 Repair: How To Use Radiator Sealant
• 2001 Audi A4 Radiator Repair: 3 Soldering Tips for Proper Restoration
• Average 2001 Audi A4 Radiator Repair Costs: Dont Get Scammed
• Signs of a Worn Out 2001 Audi A4 Engine Bearing
• Causes of 2001 Audi A4 Lifter Tick
• How To Bleed a 2001 Audi A4 Radiator: An Auto Diy Maintenance Guide
• 2001 Audi A4 Tire Repair: Tire Patch Vs Plug
• Types of 2001 Audi A4 Brake Pads To Be Aware of
• Pros and Cons of a 2001 Audi A4 High Flow Air Filter
• Benefits of Changing Your 2001 Audi A4 Air Filter
• Common Problems Associated With 2001 Audi A4 Fully Synthetic Oil
• What Is The Difference Between a 2001 Audi A4 Synthetic Oil and Conventional Oil
• How Often Should You Clean and Condition 2001 Audi A4 Leather Seats
• How 2001 Audi A4 Oil Change Affects Gas Mileage
• Advantages That New Tires Give Your 2001 Audi A4
• How To Prevent a 2001 Audi A4 Spark Plug Blow Out Ignition: Problems Solved
• Copper Spark Plugs Vs Iridium and Platinum: Understand for Top 2001 Audi A4 Performance
• How To Fix a 2001 Audi A4 Power Steering Hose Leak
• Essential 2001 Audi A4 Power Steering Parts and What They Do
• How To Get Rid of a 2001 Audi A4 Mildew Smell
• 2001 Audi A4 Battery or Alternator How To Tell Where The Problem Lies
• Everything You Need To Know About 2001 Audi A4 Brake Fluid
• Weird 2001 Audi A4 Air Conditioner Smell: What It Means and How To Fix It