Crank case ventilation hose breaks and engine runs poorly part#06C103235B
The worst 2003 Audi A4 problems
Ranked by number of owner complaints. Mileage and cost come from what owners wrote.
Problems by type
Tap a problem to see which part fails, at what mileage and in which other years.
- Fuel system51
- Transmission43
- Electrical32
- Engine24
- Lights23
- Acceleration22
- Visibility20
- Body14
- Airbags12
- Steering7
- Tires6
- Driver assistance3
- Suspension3
- Brakes2
- Seats2
- Wheels2
- Locks1
- Seat belts1
Specific symptoms reported on the 2003 Audi A4
Fuel pump 44Stalling 23Headlights 17CVT failure 13Check engine light 10Loss of power 9Jerking 8Won't shift 6Transmission failure 6No deployment 5Engine failure 5Fire or smoke 5
Trouble codes owners of the 2003 Audi A4 mention
P0706 2
Recalls 3
Fuel system, gasoline: delivery: fuel pump
- What is wrong
- On certain vehicles equipped with 1.8l turbo, 2.8l v6, or 3.0l engines, a change in the electrical motor components in the fuel pump can lead to an inoperative fuel pump and, ultimately, stoppage of fuel supply to the engine causing it to stall.
- Risk
- If fuel flow to the engine is interrupted, the vehicle could stall without warning and thus present a potential risk of crash.
- Remedy
- Dealers will install new fuel pumps free of charge. The recall began on september 28, 20007. Owners may contact vw at 1‑800‑222‑8987 or audi at 1‑800‑822‑2834. This recall is a supplement to a previous campaign (please see 06v017).
Recall number 07V375000 · Recall details
Fuel system, gasoline: delivery: fuel pump
- What is wrong
- On certain vehicles produced from september 2002 - march 2003, equipped with 1.8l turbo, 2.8l v6, or 3.0l engines, a change in the electrical motor components in the fuel pump can lead to an inoperative fuel pump and, ultimately, stoppage of fuel supply to the engine causing it to stall.
- Risk
- If fuel flow to the engine is interrupted, the vehicle could stall without warning and thus present a potential risk of crash.
- Remedy
- Dealers will install new fuel pumps free of charge. The recall began on april 10, 2006. Owners may contact vw at 1‑800‑222‑8987 or audi at 1‑800‑822‑2834.
Recall number 06V017000 · Recall details
Exterior lighting: headlights
- What is wrong
- On certain passenger vehicles, there is a possibility of xenon headlamp coating degradation over time. The luminous transmittance of the headlamp may decrease over a period of time.
- Risk
- This condition could affect a driver's field of view, increasing the risk of a crash.
- Remedy
- Dealers will replace the left and right xenon headlamp reflectors free of charge. The recall began on april 11, 2005. Owners may contact audi at 1‑800‑822‑2834.
Recall number 05V096000 · Recall details
Technical service bulletins for the 2003 Audi A4 163
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- This bulletin provides information on the additional reporting requirements for safety related inquiries.
- This special notice is to inform dealers to return the parts listed if it meets the criteria provided.
- This informational bulletin explains how to order replacement VIN plates, Safety Certification Labels, etc.
- This information bulletin contains instructions for technicans on how to ensure their TAC call goes smoothly.
- 00 Software Version Management (SVM), operating instructions
- This communication is issued to inform dealers of updated shipping regulations related to lithium ion...
- This communication is issued to remind dealers of the repair validation process for repair group 19....
- This bulletin contains instructions for additional reporting requirements for safety related inquiries...
- This informational bulletin contains technical information for when there is condensation visible on the...
- This special notice is to inform dealers to return all part numbers listed in the document and order the...
2003 Audi A4 fuel economy
Official EPA estimates in miles per gallon (MPGe for electric). Ranges cover trims that share the same engine.
| Engine | Drive | City | Highway | Combined |
|---|---|---|---|---|
| 1.8L 4‑cyl | FWD | 20 | 27-29 | 23 |
| 3.0L 6‑cyl | FWD | 18 | 25-26 | 21 |
| 1.8L 4‑cyl | 4WD | 18 | 26 | 21 |
| 3.0L 6‑cyl | 4WD | 16 | 23-24 | 18-19 |
What 2003 Audi A4 owners say
Most recent owner complaints, unedited.
Water pump failed inside lights sometimes work and signal lights aren’t accurate
Radio intermediate goes out hitting bumps speedometer stopped working the number ninth digit is not pulling up when I search vehicle information Replaced engine vehicle only had 20,000 miles
The contact owns a 2003 Audi A4. The contact stated while driving 65 MPH, the vehicle decelerated, lost motive power and stalled without warning. The contact stated that the vehicle failed to restart and there was steam coming from the vehicle. The vehicle was towed to the residence where an independent mechanic diagnosed the vehicle and determined that the vehicle had experienced a similar failure to the federal safety agency Campaign Number: 14E007000 (Engine and Engine Cooling). The vehicle was not repaired. The dealer was contacted and notified of the failure. The manufacturer was contacted and stated that the VIN was necessary to check for recalls. The failure mileage was 100,000. The VIN was not available.
Left turn signal works fine. Right turn signal alternates between flashing left and right.
The contact owns a 2003 Audi A4. The contact stated that while driving at an undisclosed speed, a fuel odor was detected. The contact parked the vehicle and noticed there was fuel leaking on the rear driver's side. The vehicle was taken to the dealer and diagnosed that the fuel pump flange and hoses needed to be replaced. The vehicle was not repaired and remained at the dealer. The manufacturer was made aware of the failure and informed the contact that they would cover the part replacement. The failure mileage was 143,839.
The coolant light came on after I replaced coil packs and I stopped to look wasn't leaking anywhere. Drove to work and it caught on fire due to overheating I guess not really sure. I was driving a car on fire down a highway and didn't even know it. I stopped to take a left turn into work and smoke stared billowing out and around the entire car. Other drivers couldn't see me or nothing I could have been in an accident. The fire department checked the car out sort of and it's in a mechanics shop now. Trying to figure it out. Oil light was on and that's it. AN then the coolant light would kick on and off. Nothing else after I changed the coil packs. And it was well after I did that.
2003 audi a4 3.0 cabriolet convertible started shifting rough and hesitant and shut off, cranked back up went into limp mode and all the shifting gear lights came on r n d 2 , barely made it back home, put code reader on car had a lot of codes on it I reset codes but rnd2 lights still on , possible bad TCM?
Initially drove car home from grocery store hit a bump and noticed a spark coming from front driver's side of car. Pulled over and checked for spark evident once stopped there was no sign of spark or anything. Got car home and parked about an hour later my car was on fire, after putting the fire out my husband lifted the hood and tried to investigate the issue when he discovered the battery was melted to the hood and is where the fire initially caught. The location of the battery we believe to be the issue and wanted to make sure to report it immediately.
Transmission control module transmission slips out of drive while driving into like neutral and when I accelerate the car does not move and comes to a full stop and I have to stop and turn the car on and off till it works again
Compare the 2003 Audi A4
A4 vs Mercedes-Benz C300A4 vs BMW 328IA4 vs Cadillac CTSA4 vs Lincoln MKZA4 vs Lexus ES350A4 vs Acura TLX
Other model years
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Questions about the 2003 Audi A4
Is the 2003 Audi A4 reliable?
Owners have filed 210 complaints about the 2003 Audi A4, 3.7 times a typical A4 model year. It is one of the years we flag to avoid.
What is the 2003 Audi A4 year score?
The 2003 Audi A4 scores 24 out of 100 (poor). The score compares it with the other model years of the Audi A4: 75 is a typical year, 50 means twice the usual complaints, and serious complaints and recalls lower it.
What is the most common problem with the 2003 Audi A4?
Fuel and propulsion system, with 51 complaints, typically around 55,000 miles. Next is transmission (43).
How many recalls does the 2003 Audi A4 have?
3 recalls, covering fuel system, gasoline and exterior lighting.
What gas mileage does the 2003 Audi A4 get?
Official estimates for the 2003 Audi A4 range from 18 to 23 mpg combined. The most efficient version (1.8L 4-cyl, FWD) gets 20 city and 27-29 highway.
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