hardly worth mentioning
Crashes / Fires:
0 / 1
Injuries / Deaths:
0 / 0
Average Mileage:
85,286 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2003 Audi A4 electrical problems

electrical problem

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2003 Audi A4 Owner Comments

problem #12

Aug 052015


  • 200,003 miles


The contact owns a 2003 Audi A4. The contact stated that while driving at 35 mph, various electrical functions of the vehicle shut off and the steering wheel seized. The engine warning light illuminated. The failure occurred once. The vehicle was taken to an independent mechanic where it was diagnosed that the transmission control module needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 200,003.

- Lamesa, CA, USA

problem #11

Jul 282012


  • 133,000 miles
Headlight keeps going out and blowing the ballast causing headlight not to work at all. Replaced this expensive part multiple times and still breaks. Not a cheap part and a safety hazard.

- Gallitzin, PA, USA

problem #10

Dec 072010

A4 4-cyl

  • 140,000 miles
Failure of ignition coils on Audi A4 1.8 turbo engine.

- Smyrna, GA, USA

problem #9

May 032010

A4 8-cyl

  • 98,000 miles


Car left headlight failure (hid/xenon). Fault not with bulb or fuse.

- Philadelphia, PA, USA

problem #8

Jun 122008


  • 91,904 miles
Forgot to install C clip on temp sensor on radiator hose which popped out causing major engine damage and blown head gasket which was denied for many months. In Oct. 08 they forgot to tighten bracket which caused wires to smoke and fire.Aug 08-trimmed serpentine belt rather than replaced and car stopped running in middle of interstate. Sept 09 replaced oil pan but forgot to put plug back Oct 08 oil residue on damper they threw out and did not replace. They forgot to put bolts back on sub frame and miracle I was not killed. This caused axle problems. When they replaced bolts they did not have bushings in stock and they released car without these bushings which is a safety violation. When bushings came in they refused to work on our vehicle and we had to go to different mechanic. They told us we needed timing belt when the headgasket was blown. Now there is new recall for coil packs and they refuse to work on our car. The new GM is listening to the service mgr. Who is not telling the complete story nor is the new GM reviewing the facts. Our lives are in danger with this vehicle and since we still owe $15K we cannot trade it in. Started June 2008 and continues until today. Coil packs which were just recalled are causing car not to run and we are stuck

- Largo, FL, USA

problem #7

Aug 142008

A4 4-cyl

  • Manual transmission
  • 31,342 miles
The contact owns a 2003 Audi A4. The contact noticed water in the foot wells on both the driver's and passenger side of the vehicle. When he started the vehicle, the electrical system went haywire. The dealer stated that the electronic control module was flooded due to clogging of the intake plenum drain grommet. The contact was advised to have it cleaned in order to prevent future failures. The manufacturer stated that there was no recall for his year, make, and model vehicle. The current mileage was approximately 37,000 and failure mileage was 31,342. Updated 8/7/09 updated 08/11/09.

- Chestnut Hill, MA, USA

problem #6

Nov 242008


  • 90,053 miles


I own a 2003 Audi A4 1.8. I was driving my car and pulled into a parking space while adjusting my car to the space, the engine cut off and when I turned the key to restart the engine nothing happened. I had the car towed to the dealer only to be told it was the fuel pump. When I was told this I immediately went online to research what could cause this only to discover that there was a recall on the fuel pump. I called the number given for the recall only to be told that my car was not one on the recall list. I then went on line to Consumer Affairs to see if there was any complaints about this problem only to find that there were several with fuel pump complaints and was given the same reason. The car could have cut off in traffic or while I was driving if I did not pull into a parking space, creating a safety hazard or causing an accident. I believe this is unfair to sell defective parts, have a recall and refuse to acknowledge the problem exists in other models other than what they have listed. That repair costs me $768, I should and so should the other complainants be reimbursed for this defect by Audi., why does someone have to die or be seriously injured before these manufacturers acknowledge defects. Same problem with the ignition coils, I repaired the first ignition coil, then the second one went bad, it was recommended that I change all, pulled up this info on Consumer Affairs, again there was a defect with this part. Consumers are being ripped off and no one seems to care.

- Millersville, MD, USA

problem #5

Jul 132008


  • 102,000 miles
Engine box floods after driving through long distances in heavy rain. Results in car that will not run at all (needed to be towed) diagnosis is that the engine box floods from insufficient drainage from the cowl which then shorts out the engine control module and transmission control module (basically the car's computer center) this is the second time this problem has occurred (both after driving through difficult rain storms) the first time this happened was in October of 2005, and it took nearly 6 weeks to diagnose and repair. Repair was done by authorized Audi dealer that originally sold me the car. The final bill was nearly $5000. They insisted it was a fluke and had me make an insurance claim to cover the repairs as flood damage. I made a formal complaint to Audi at that time since it is clearly a design flaw. (someone the dealer acknowledged to me that they had witnessed this before, each time telling the customer to go through their insurance to cover the cost). Here I am less than 3 years later and the same exact thing happened this weekend. I drove through an intense rainstorm and I have a flooded engine box. The bill is once again going to exceed $4000, not to mention the amount of time that I will need to rent a car (again) to conduct my business. I sell real estate and depend on my vehicle. Once again I phoned Audi customer care and lodged another formal complaint with this issue and they refuse to acknowledge this design flaw. I am currently seeking legal council in order to recoup these costs. I have both complaints which are exactly the same filed with Audi. I do not have the first set of parts, but I can certainly keep the ones that have recently failed. At this point I do not have a car, I am waiting to see if my insurance company will again pay for this claim. I truly believe this is something that Audi needs to take care of and acknowledge the flaw.

- Kingston, NY, USA

problem #4

Jun 202008


  • 55,000 miles
1.the events leading up to the failure: Audi A4S have an intake plenum drain grommet located near the battery; this funnel is known to become clog due to debris and grime. The drain grommet on my vehicle became clogged some time ago and I did not become aware of this problem until the funnel stopped working and allowed water to drain inside my car. This caused my comfort module to fail - my power windows, power locks, interior lights, keyless remote entry, alarm, trunk, battery and gas tank lid ceased to function. 2.the failure, how often it occurs, its consequences; and, Audi of America knows about this problem. This problem is pretty common in the 2003 Audi A4's. if you do a search about it online, many consumers are affected by this clogged drain grommet. Upon doing more research, I was shocked to learn that the 2002 Audi A4 models had exactly the same problem, but had its vehicles recalled. 3.what was done to correct the failure; I.e, parts repaired or replaced (and if old part is available) I brought my 2003 Audi A4 to the dealership (Audi of Hawaii) to correct the problem, which cost me $1400. The technicians replaced the plenum grommet drain, comfort module, battery, and had to clean the bottom interior of my car which was saturated with water, mold, and mildew. I also wrote a letter to Audi of America and Audi of Hawaii to address this problem to other 2003 Audi A4 owners since it was addressed for the 2002 Audi A4 vehicles. Their reply was that since it had not been ┐federally mandated┐ they will not have a recall for the 2003 Audi A4.

- Kaneohe, HI, USA

problem #3

May 292007


  • miles
Ignition coils have gone out 2 times already. First incident happened on May 29,2007, second happened in August of 2007.

- Redwood City, CA, USA

problem #2

Mar 202007

A4 4-cyl

  • Automatic transmission
  • 52,125 miles
I purchased a brand new 03 Audi A4T quattro in June of 03. The dealer is great and thank god they value their customers because my car has given them alot practice on everything. I think germany sent us a dud! since buying the car I have needed various items replaced: A new computer, (replaced by the dealer), a new fuel system was needed because my car stalled in the left lane of a highway while driving in the middle of nowhere (later recalled by Audi but after I needed to be towed and have the cpmponent fixed along with other items supposedly attached to the sytem), and most recently 2 separate problems that have not yet been fixed but have occurred within 1100 miles of each other. First diagnosis of the noise and shimmy while driving was tire balance and later rack and pin steering and after all that they are trying to figure out what the shimmy at 65mph + is along with the whinning in the car the first 10 miles fo each day (after it is warmed up or even if it is a warm day). And what supposedly was first thought to be a coil is now a mystery. They have had my car for over 2 days and are still unsure as to what is going on. Thank god I bought the extended warranty!

- Garfield, NJ, USA

problem #1

Nov 242006

A4 6-cyl

  • Manual transmission
  • 30,000 miles
Audi A4 2003, the clutch failed at 30,000 miles, but Audi refused to fix the problem until it was completely undrivable. I had to pay out of pocket because it was categorized as wear and tear, thus not covered by Audi's least. The electrical system and the fuel pump also failed and needed to be replaced. The jack broke while changing a flat tire and I was told that this had happened to other Audi owners, but still had to pay the damage to the plastic siding out of pocket.

- Naperville, IL, USA

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