RoadVitals

2004 Audi A4 Electrical Problems

Owner-reported complaints naming the electrical system, filed with NHTSA

Data refreshed

Electrical reportsComplaints are reports submitted to NHTSA by owners and drivers. NHTSA does not verify most reports before publishing them, and a complaint does not establish that a defect exists. Volume is influenced by how many of a vehicle were sold, how long it has been on the road, and how much attention an issue has received.
15
Latest Sep 16, 2022
Share of all reportsThis category as a share of every owner report on file for this model year. One report can name more than one component, so the categories overlap.
8%
of 189 total
Crash or fire reportedReports in this category whose submitter recorded that a crash or a fire occurred. The reporter's own answer on the NHTSA form, not a verified finding.
1
Injuries or deaths reportedTotals the submitters entered on their own reports in this category. Not verified by NHTSA and not a casualty statistic.
0

What this page shows

Reports naming the electrical system — wiring, battery, charging, control modules, infotainment and electrical accessories. Every record below is an owner-reported complaint about the 2004 Audi A4 submitted to NHTSA — not a confirmed defect, not a recall and not a manufacturer bulletin. 15 reports on file name it.

Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.

Owner reports naming electrical

Shown in the owner’s own words, exactly as filed

Electrical
Filed Sep 16, 2022
Fire reported

This took place about a week ago. The car was parked in our driveway when the fire started. My husband had returned home just 15 minutes prior to the fire starting. I noticed there was smoke coming in our living room window. Then I looked at our security camas. And saw smoke pouring out from underneath the hood of my car. We tried to put the fire out with our two hose system set up and it wouldn't go out. So we knew it was electrical. We couldn't get close enough to open the hood so I couldn't pour baking soda on it. Two fire extinguishers later like 10 minutes the firefighters showed up and we're able to put it out. They confirmed that the arch came from the battery terminals /cables. Two of the fireman said they'd never seen anything like this before. Then the car tried to START ITSELF as my husband and the two fireman were standing right in front of the Audi. They had to cut the remaining battery cable that wasn't completely burned through before it stopped. My neighbor has a recording of the whole incident. The engine compartment is destroyed! The engine might be all right but we don't have the finances to do anything but clean up. Oh and for extra fun one of the fireman took an ax the the hood of the A4 cabriolet I have had for maybe a month. Now we have no car and no real means of being able to fix it.

NHTSA ID
11484914
Incident
Sep 7, 2022
ElectricalPowertrain (other)
Filed Aug 23, 2021

PRNDS appeared in red on my dash and then started blinking. Went on line regarding this and read about a TCM switch or a lever switch malfunction.Have an appt with mechanic on 8/26/21. From what I have read we are looking at a cost prohibitive repair of several thousands of dollars. Does Audi have any responsibility? Apparently it is a common complaint with the A4 model. Felt loss of power when decelerating.

NHTSA ID
11430229
Incident
Aug 23, 2021
Electrical
Filed Jul 25, 2015

ELECTRONIC DEFICIENCY OVERRIDING SPEEDOMETER AND ODOMETER ON THE CAR. WHEN CAR IS FIRST STARTED...THREE LOUD BEEPS OCCUR AND THE ABS AND BRAKE WARNING LIGHTS START BLINKING ON AND OFF. FOLLOWING THE THREE LOUD BEEPS BOTH THE SPEEDOMETER AND ODOMETER ARE DISABLED. WHEN DRIVING, THE SPEEDOMETER DOES NOT INDICATE THE SPEED OF THE VEHICLE AND THE ODOMETER DOES NOT INDICATE ANY MILEAGE DRIVEN.

NHTSA ID
10743455
Incident
Jun 5, 2015
Mileage
93,000 mi
Electrical
Filed Mar 18, 2014

TL* THE CONTACT OWNS A 2004 AUDI A4. THE CONTACT STATED THAT WHILE DRIVING 50 MPH, THE VEHICLE BEGAN TO LOSE POWER. THE VEHICLE WAS RESTARTED AND FUNCTIONED PROPERLY. THE VEHICLE WAS TAKEN TO THE DEALER FOR INSPECTION WHERE THEY STATED THAT THEY COULD NOT DETERMINE THE CAUSE OF THE FAILURE. THE VEHICLE WAS NOT REPAIRED AND THE FAILURE RECURRED SEVERAL TIMES LATER. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 34,000.

NHTSA ID
10573084
Incident
Feb 17, 2010
Mileage
34,000 mi
Driver assistanceElectricalFuel system
Filed Oct 28, 2013

I WAS DRIVING MY 2004 AUDI A4 (1.8, CONVERTIBLE) ON A LOCAL ROAD AT APPROX 30MPH, WHEN THE ACCELERATOR SUDDENLY DROPPED FROM UNDER MY FOOT AND THE CAR ACCELERATED VERY RAPIDLY. IT FELT LIKE THE CRUISE CONTROL HAD COME ON BY ITSELF (THE CRUISE CONTROL WAS COMPLETELY OFF AT THE TIME). I PUT THE CAR IN NEUTRAL AND PULLED OVER. WHEN I SHUT THE CAR OFF, THE GAS PEDAL POPPED UP AND FELT NORMAL. WHEN I TURNED THE CAR BACK ON SEVERAL TIMES, IT CONTINUED TO IMMEDIATELY ACCELERATE ALL THE WAY WITH THE GAS PEDAL DROPPING TO THE FLOOR. THE CAR IS NOW BEING TOWED TO A MECHANIC. HAD I BEEN IN A TIGHTER SITUATION AT THE TIME, IT COULD'VE BEEN UGLY. *TR

NHTSA ID
10549744
Incident
Oct 28, 2013
Mileage
41,000 mi
Driver assistanceElectricalPowertrain (other)
Filed Sep 29, 2011

THE VEHICLE ACCORDING TO THE AUDI DEALER HAS A BAD AUTOMATIC TCM TRANSMISSION CONTROL MODULE THAT CAUSES THE CAR TO SLIP GEARS OR NOT SHIFT DOWN WHEN COMING SLOWING DOWN AND THEN NEEDING TO ACCELERATE. THE VEHICLE WILL STAY LOCKED IN 3RD GEAR AND WHEN PULLING OUT ON TO THE FREEWAY OR A BUSY STREET IT MAKES IT DIFFICULT TO GET UP TO SPEED. WHEN PARKED ON A SLANTED DRIVEWAY OR STREET THE VEHICLE MAY NOT ENGAGE A GEAR ONCE IT HAS BEEN SELECTED AND THE CAR WILL ROLL DOWN HILL. *TR

NHTSA ID
10427880
Incident
Sep 23, 2011
ElectricalEngine
Filed Sep 21, 2010

2004 AUDI A4 1.8T ENGINE SLUDGE--COMPLETE ENGINE FAILURE. AUDI ABSURDLY REFUSES TO HONOR THEIR OWN EXTENDED WARRANTY ON THE BASIS THE CAR WAS RUN WITHOUT OIL. THE ENGINE FAILED INTERNALLY BECAUSE THERE WAS AND IS SLUDGE BLOCKING LUBRICATION PORTS TO THE MOVING PARTS, I.E., FAILURE. THIS IS MY EXECUTIVE SYNOPSIS, BUT I HAVE VOLUMES OF SUPPORTING EVIDENCE, UNBELIEVABLE AS IT IS TO THINK THIS COULD HAPPEN IN AMERICA. *TR

NHTSA ID
10356718
Incident
Jul 8, 2010
Mileage
99,000 mi
ElectricalExterior lighting
Filed Jun 22, 2010

I OWN A 2004 AUDI A4 AND LAST YEAR MY PASSENGERS SIDE HEADLIGHT STARTED TO FLICKER AND WOULD EVEN GO OUT AS I WAS DRIVING! MAJOR SAFETY HAZARD! I AM ON MANY AUDI FORUMS AND THERE ARE PAGES AND PAGES OF THE SAME ISSUE! DO YOU KNOW HOW DANGEROUS THIS IS FOR ME AND MY CHILDREN! AND LAST TIME I WENT TO AUDI TO FIX MY RIGHT (DRIVERS SIDE) HEADLIGHT IT COST ME OVER $1,000 DOLLARS. I JUST DO NOT HAVE THE MONEY FOR THAT RIGHT NOW AND I THINK IT IS RIDICULOUS THAT AUDI CUSTOMERS ALL HAVE THE SAME PROBLEMS AND THE NHTSA OR AUDI ARE DOING NOTHING TO SOLVE IT. I KEEP THIS CAR UP IN IMMACULATE CONDITION WITH FOLDER AND FOLDERS OF SERVICE PAGES SO ITS NOT FROM NEGLECT AND EVERYONE ELSE IS HAVING THE SAME PROBLEM! I DON'T KNOW IF YOU KNOW HOW DANGEROUS IT IS BECAUSE THE ONLY WAY TO TURN MY PASSENGER SIDE HEADLIGHT BACK ON WHEN IT GOES OUT IS TO PULL OVER SHUT MY LIGHTS AND TURN THEM BACK ON THEN IT COMES BACK ON AND WILL EITHER STAY ON FOR A LITTLE BIT AND THEN START FLICKERING AGAIN AND GO OUT AGAIN. I AM TAKING MY LIFE IN MY HANDS DRIVING THIS CAR AND ITS MY ONLY CAR TO COMMUTE WITH. THIS ISSUE NEEDS TO BE FIXED VERY SOON! *TR

NHTSA ID
10339610
Incident
Dec 1, 2009
Electrical
Filed Jan 15, 2010

WHILE DRIVING THE CAR, THERE WAS A POP, THEN THE CAR STARTED RUNNING POORLY. I STOPPED THE CAR AND CHECKED THE GAUGES; THE CHECK ENGINE LIGHT WAS ON. I RETURNED HOME AND CALLED THE DEALER WHO SUGGESTED I CALL FOR A TOW TRUCK AND HAVE IT BROUGHT IN. HE SAID THAT THE VEHICLE COULDN'T BE DRIVEN IN THIS CONDITION. HE TOLD ME IT WAS PROBABLY THE COIL PACK. I CALLED A TOW TRUCK AND IT WAS TAKEN TO THE DEALER. THEY REPLACED THE COIL PACK THAT HAD BEEN RECALLED AT NO CHARGE TO ME, IT HAS RUN FINE SINCE. *TR

NHTSA ID
10299932
Incident
Jan 8, 2010
Mileage
59,000 mi
Body & structureElectricalEngine+2 more
Filed Oct 22, 2008

2004 AUDI A4 HAS HAD SEVERAL REPAIR PROBLEMS. CONSUMER FEELS THAT THE VEHICLE COULD BE IN AN ACCIDENT DUE TO THE PROBLEMS. *NJ THE CONSUMER STATED ALL OF A SUDDEN, THE VEHICLE STOPPED RUNNING WHILE IN TRAFFIC. THE DEALER WAS UNABLE TO FIND ANY PROBLEMS. SEVERAL MONTHS LATER, THE ENGINE WOULDN'T TURN OVER. THE BATTERY WAS REPLACED AS WELL AS A BULB. THE CONVERTIBLE TOP WOULD NOT GO DOWN. AN ELECTRICAL PART ON THE CONVERTIBLE WAS REPLACED, ONE OF THE HEADLIGHTS HAD BURNED OUT AND THE CRANK PULLEY WAS REPLACED.. *JB THE CONVERTIBLE TOP BECAME STUCK IN THE OPEN POSITION AND HAD TO BE REPLACED. THE CONVERTIBLE TOP REPLACEMENT CAUSED DAMAGED TO THE HEADLINER AS WELL THE DRIVERS SIDE WINDOW HAD A LEAK. UPDATED 02/07/11

NHTSA ID
10247008
Incident
Sep 13, 2008
Mileage
19,102 mi
Electrical
Filed Mar 3, 2008

VEHICLE BREAKS DOWN IN TRAFFIC DUE TO IGNITION COIL FAILURES. REPLACE 6 IGNITION COILS, VEHICLE RUNS FINE AGAIN. THIS IS A COMMON DEFECT OF THIS GENERATION AUDI A4. *TR

NHTSA ID
10219911
Incident
Jan 18, 2008
Mileage
65,483 mi
Electrical
Filed Jan 10, 2008

TL*THE CONTACT OWNS A 2004 AUDI A4. THE CONTACT STATED THAT THE LCD INSTRUMENT CONTROL PANEL WARNING LIGHTS ILLUMINATED SPORADICALLY. THE DEALER STATED THAT THEY RECEIVED COMPLAINTS ON THIS COMPONENT AND INFORMED THE CONTACT THAT THE INSTRUMENT CONTROL CLUSTER WOULD NEED TO BE REPLACED. THE CURRENT AND FAILURE MILEAGES WERE 70,000.

NHTSA ID
10214386
Incident
Mar 2, 2007
Mileage
70,000 mi
Electrical
Filed Dec 12, 2007

I WAS DRIVING ON INTERSTATE 85 IN SOUTH CAROLINA RETURNING TO CHARLOTTE, N.C. WHEN THE ENGINE OF MY 2004 AUDI A4 STARTED SKIPPING SEVERELY. AFTER PULLING TO THE SIDE OF THE ROAD AND LETTING THE CAR SIT FOR A WHILE, I RESTARTED THE ENGINE AND THE PROBLEM SEEMED TO MINIMIZE SOMEWHAT. THE FOLLOWING MORNING ON THE WAY TO WORK THE ENGINE STARTED SKIPPING SEVERELY, AND THE VEHICLE SEEMED TO BE BUCKING HEAVILY. I WAS ABLE TO GET OUT OF THE TRAFFIC AND PULL TO THE SIDE OF THE ROAD. I CALLED AUDI OF CHARLOTTE, AND THEY ADVISED TO DRIVE THE CAR TO THERE FACILITY IF IT WAS DRIVABLE. I MANAGED TO GET THE CAR THERE DRIVING AT 25 MPH WITH THE MOTOR SKIPPING HEAVILY. THE PROBLEM WAS DIAGNOSED AS AN IGNITION COIL FAILURE, AND WAS REPAIRED AT A COST OF $472.04. THIS WAS THE SECOND MAJOR FAILURE OF A COMPONENT OF THIS VEHICLE IN A TIME SPAN OF TWO MONTHS ( FUEL PUMP-6/14/07 ), AND AS A FEMALE DRIVER I AM CONCERNED THAT I'M GOING TO BE LEFT ON THE SIDE OF THE ROAD AT NIGHT. *TR

NHTSA ID
10211559
Incident
Aug 13, 2007
Mileage
69,250 mi
Electrical
Filed Mar 22, 2006

I OWE A 2004 AUDI A4 CONVERTIBLE. IN LATE FEBRUARY OF 06, I STARTED TO EXPERIENCE PROBLEMS WHEN I PUT THE GEAR ON D (DRIVE) OR R (REVERSE) AND GAVE GAS; THE CAR DID NOT MOVE AT ALL. DASH BOARD INSTRUMENT WAS NOT RESPONSIVE EITHER. INITIALLY I THOUGHT THIS WAS DUE TO COLD WEATHER. ON MARCH 13, 06, I WAS RUNNING ERRANDS IN A VERY BUSY AREA OF NORTHERN VIRGINIA. THE CAR WAS WARM AS IT HAS BEEN RUNNING FOR A COUPLE OF HOURS. I APPROACHED A BUSY INTERSECTION TO MAKE A LEFT TURN. WHEN THE ROAD WAS CLEARED, I ATTEMPTED TO MOVE FORWARD BUT THE CAR WAS TOTALLY FROZEN - IT WOULD NOT MOVE REGARDLESS OF HOW MUCH I PUSHED THE GAS PEDAL. I WAS NOW FACING THE ONCOMING TRAFFIC OF THREE CARS BLOWING THEIR HORNS LIKE CRAZY. I JUST COULD NOT MOVE THE CAR AND WAS TERRIFIED THAT I WOULD BE HIT BY THE ONCOMING TRAFFIC. THE ONCOMING TRAFFIC CAME TO AN ABRUPT STOP AND AFTER SEVERAL ATTEMPTS I WAS ABLE TO MOVE THE CAR. I WAS VERY SCARED AND CALLED THE AUDI OF TYSONS CORNER (HBL) IN VIENNA, VIRGINIA IMMEDIATELY AND TOOK THE CAR IN THAT DAY. THE NEXT DAY (3/14) AFTERNOON, I RECEIVED A CALL FROM THE SERVICE ADVISOR INDICATING THAT THEY WERE NOT ABLE TO DUPLICATE THE PROBLEM AND THAT NOTHING WAS WRONG WITH MY CAR. I INSISTED THAT THEY RECHECK AS I EXPERIENCED THE PROBLEM SEVERAL TIMES AND THAT THE LAST INCIDENT WAS COULD HAVE BEEN FATAL AS I WAS STUCK IN THE MIDDLE OF THE INTERSECTION. THEY AGREED AND KEPT THE CAR FOR ANOTHER DAY; HOWEVER, THE NEXT DAY THEY CALLED AND SAID THE SAME THING - NOTHING WRONG WITH THE CAR. I PICKED THE CAR ON MARCH 16, 06. WHILE WAITING IN THE LOBBY, I SAW ANOTHER AUDI A4 CONVERTIBLE DRIVER. I APPROACHED HER ABOUT MY EXPERIENCE AND ASKED IF SHE EXPERIENCED THE SAME OR SIMILAR PROBLEMS. SHE SAID YES AND THAT IS WHY SHE BROUGHT HER CAR IN ALONG WITH A REGULAR SERVICE CHECK. SHE RECEIVED THE SAME FEEDBACK FROM THE AUDI OF TYSONS - NOTHING WRONG WITH HER CAR EITHER. I HAVE THE NAME, PHONE NUMBER, ETC., OF THE OTHER DRIVER IF NEEDED. *JB

NHTSA ID
10153390
Incident
Mar 13, 2006
ElectricalEngine
Filed Sep 28, 2004

VEHICLE HEATED UP UNDER THE STEERING COLUMN, ESPECIALLY WHEN DRIVING 50 MPH OR GREATER. CONSUMER TOOK VEHICLE TO THE DEALER, AND THEY TEST DROVE THE VEHICLE FOR EIGHT DAYS AND FOUND THE SAME FLAW AS THE CONSUMER. MANUFACTURER INDICATED THAT THE VEHICLE WAS OPERATING UNDER NORMAL RANGE, AND THERE WAS NOTHING THEY COULD DO. *AK *NM

NHTSA ID
10088041
Incident
Aug 7, 2003
Mileage
8 mi

Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.

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