FUEL SYSTEM, GASOLINE:DELIVERY:HOSES, LINES/PIPING, AND FITTINGS
1993 Audi S4
Recalls, owner-reported complaints, investigations and safety data
Data refreshed
Overview
Our database contains 16 NHTSA owner-reported complaints for the 1993 Audi S4, most frequently naming the fuel system, brakes and driver assistance categories. 2 safety recalls have been issued covering this model year; 1 NHTSA investigation names it; and 6 manufacturer communications are on file.
Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.
Complaint activity over time
When owners filed reports about this model year
View as table
| Month | Complaints filed | Cumulative |
|---|---|---|
| Feb 1999 | 2 | 2 |
| Aug 1999 | 1 | 3 |
| Sep 1999 | 4 | 7 |
| Oct 1999 | 2 | 9 |
| Apr 2000 | 1 | 10 |
| Aug 2001 | 1 | 11 |
| Dec 2002 | 1 | 12 |
| Feb 2007 | 1 | 13 |
| Apr 2010 | 1 | 14 |
| May 2010 | 1 | 15 |
| Nov 2018 | 1 | 16 |
What owners report
Complaints grouped by the component NHTSA recorded
- Fuel system1168.8%
- Brakes212.5%
- Driver assistance212.5%
- Suspension16.3%
Percentages are of component mentions. A single complaint can name more than one component, so these do not sum to the total complaint count.
Safety recalls
2 campaigns cover this model year
Recalls apply to specific vehicles, not to every vehicle of a model year. Check your VIN with NHTSA or your manufacturer's dealer to confirm whether a recall affects your vehicle.
Check a VIN on NHTSA.govAIR BAGS:FRONTAL:SENSOR/CONTROL MODULE-INACTIVE
Safety investigations
NHTSA inquiries naming this vehicle. An investigation is not a finding of a defect.
Recent owner complaints
Reports submitted to NHTSA, shown in the owner's own words
THIS WAS A CONSUMER CALL RECEIVED BY REGIONAL OFFICE STAFF, AND IS BEING RELAYED. VEHICLE HAS AN ACTIVE FUEL SYSTEM RECALL, AND DEALER IN SALT LAKE CITY, UT SCHEDULED REPAIR, BUT CANCELLED THE REPAIR APPOINTMENT DUE TO NOT HAVING PROPER BILLING CODE TO BE REIMBURSED FOR THE REPAIR BY THE MANUFACTURER. PLEASE CONTACT CONSUMER DIRECTLY FOR FURTHER DETAILS AND TO ASSIST HIM IN RESOLVING THIS ISSUE.
- NHTSA ID
- 11149954
- Incident
- Nov 7, 2018
I OWN TWO OF THE ORIGINAL AUDI S4'S, BOTH 1993 MODELS. MY DAUGHTER WAS DRIVING ONE OF THESE CARS IN 2007 AND THE THROTTLE STUCK OPEN SO THAT THE ENGINE RACED UNCONTROLLABLY. SHE WAS ABLE TO PUT THE CLUTCH IN AND STOP THE CAR AND TURN THE ENGINE OFF. THEN SHE HAD THE CAR TOWED TO THE NEAREST REPAIR SHOP. IT WAS DISCOVERED THAT A PLASTIC PART ON THE TIP OF THE THROTTLE CAM HAD BROKEN OFF AND AS A RESULT THE THROTTLE CABLING MECHANISM STUCK IN THE PARTIALLY "OPEN" POSITION. I HAD THE THROTTLE CAM REPLACED WITH AN ALL STAINLESS STEEL CAM WHICH CANNOT BREAK DOWN AS A RESULT OF HEAT, AS PLASTIC OR A SIMILAR PRODUCT CAN DO. I HAD OEM CAMS REPLACED IN BOTH S4'S. AUDI DEALER WAS NOTIFIED OF THE PROBLEM IN OCTOBER 2007. I HAVE RECOMMENDED TO AUDI THAT ALL 1992-1997 S4 AND S6 MODELS BE RECALLED AND THAT ALL THROTTLE CAMS BE REPLACED WITH AN ALL STAINLESS STEEL CAM (FOR EXAMPLE, ONE FABRICATED BY 034 MOTORSPORT IN FREMONT, CA.) AT LEAST ONE OTHER INSTANCE OF UNINTENDED ACCELERATION, DUE TO FAILURE OF THE OEM THROTTLE CAM, HAS BEEN REPORTED ON THE "WEB" -- IN FACT THAT REPORT LED ME TO 034 MOTORSPORT'S SOLUTION. I KNOW I NEVER RECEIVED, FROM AUDI, A NOTICE OF THIS POTENTIAL PROBLEM. DATE SHOWN BELOW IS APPROXIMATE. I WOULD HAVE TO FIND THE TOWING BILL TO BE PRECISE. *TR
- NHTSA ID
- 10329785
- Incident
- Oct 1, 2007
- Mileage
- 118,000 mi
I RUN A SMALL REPAIR SHOP AND HAVE SEEN A NUMBER OF AUDI VEHICLES FROM 1986 TO 1998 WHICH HAVE STEEL GASOLINE LINES THAT COLLECT ROAD SALT AND RUST IN THE RUBBER SUPPORT GROMMETS ATTACHED TO THE CHASSIS. THE RUST CAUSES A PINHOLE LEAK WHICH THEN BEGINS TO SPRAY GASOLINE ON THE EXHAUST SYSTEM. I HAVE SEEN 5 OR 6 VEHICLES LIKE THIS IN THE PAST 5 YEARS AND SAW ANOTHER ONE LAST WEEK. *TR
- NHTSA ID
- 10325567
- Incident
- Apr 8, 2010
PLASTIC THROTTLE CABLE PIECE BROKE RESULTING IN STUCK THROTTLE CONDITION. FOR AN ACCOUNT OF THE INCIDENT ALONG WITH PHOTOS SEE THE URL BELOW. *NM HTTP://WWW.S-CARS.ORG/POSTNUKE/MODULES.PHP?OP=MODLOAD&NAME=NEWS&FILE=ARTICLE&SID=183
- NHTSA ID
- 10182362
- Incident
- Aug 25, 2005
- Mileage
- 125,000 mi
I HAD PREVIOUSLY CONTACTED NHSTA REGARDING FUEL LINE LEAKS IN THE ENGINE COMPARTMENT OF THE EALRY S4 AND S6 MODELS. THIS RESULTED IN THE "KY" RECALL CAMPAIGN. MORE RECENTLY, SOME OWNERS HAVE BEEN DISCOVERING LEAKS IN THE FUEL LINES GOING FROM THE REAR OF THE CAR TO THE FRONT. THESE LEAKS OCCUR AT THE POINT WHERE THE FUEL LINE GOES THROUGH RUBBER ISOLATION/MOUNTING BLOCKS. MOISTURE ACCUMULATES AT THESE POINTS AND CORRODES THE FUEL LINE RESULTING IN LEAKS. I DISCOVERED THIS ON MY OWN CAR IN EARLY 2002 AND I KEEP HEARING FROM MORE AND MORE PEOPLE FINDING THE SAME THING. THESE CARS HAVE BEEN EXTREMELY GOOD IN OTHER AREAS BUT THE FUEL SYSTEM PLUMING LEAVES MUCH TO BE DESIRED. DT
- NHTSA ID
- 770485
- Incident
- Feb 10, 2002
WHILE DRIVING DURING A RAINSTORM THE REAR END BROKE HARD TO THE RIGHT SENDING THE VEHICLE INTO A COUNTERCLOCKWISE SPIN, AS A RESULT THE VEHICLE HIT A LAMPOST.NLM
- NHTSA ID
- 785469
- Incident
- Apr 6, 2001
FUEL LINE FAILED WHERE BRAIDED LINE MEETS SOLID BRASS LINE. HAS HAPPENED IN MANY OTHER CARS OF THIS MODEL RELATIVE TO THE TOTAL NUMBER SOLD.
- NHTSA ID
- 721260
- Incident
- Apr 1, 2000
FAILURE IS WHERE HOSE FROM FILTER IS PRESS FIT TO METAL FUEL LINE
- NHTSA ID
- 713966
- Incident
- Feb 28, 1998
Manufacturer communications
A bulletin sent by a manufacturer to its dealers. Not a recall, and repairs are not necessarily free.
EQUIPMENT
This special notice is to inform dealers to return all part numbers listed in the document and order the superseded part numbers going forward.
EQUIPMENT
Due to increasing requests for high voltage personal protective equipment (HVE PPE) for dealer technicians working with high voltage vehicles (Hybrid, Plugin Hybrid, Electric Vehicle), the Volkswagen Tools and Equipment Team has identified two US based suppliers to support dealers in USA and Canada.
ENGINE
AUDI: ENGINE, ON SOME VEHICLES, WOULD RUN IRREGULARLY OR HAVE MALFUNCTION INDICATOR LAMP (MIL) ON OR POSSIBLE FILTER ELEMENT FOR CAMSHAFT ADJUSTMENT VALVE CAN LOOSEN AND IN OIL CIRCUIT, THERE IS NO DAMAGE FROM LOOSENED PARTICLES. MODEL ALL. ALL YEARS. *PE
Due to new Minnesota state regulations regarding biofuels, biodiesel blends of B5 or less may not be available in the State of Minnesota.
Google Maps Street View (NVLW))
EXTERIOR LIGHTING:HEADLIGHTS
HEADLIGHT AIMING, USING HELLA UNIVERSAL BEAMSETTER. *KB
Manufacturers file copies of the bulletins they send to dealers with NHTSA. These often describe diagnostic or repair procedures for a known condition. They are not recalls: repairs described in a bulletin are usually only free if the vehicle is still under warranty or the manufacturer has extended coverage.
Compare model years
Complaint and recall counts across every year of this model
| Year | Complaints | Recalls | Investigations | Issue Index |
|---|---|---|---|---|
| 2026 | 0 | 0 | 0 | — |
| 2025 | 0 | 0 | 0 | — |
| 2024 | 0 | 0 | 0 | — |
| 2023 | 0 | 0 | 0 | — |
| 2022 | 1 | 1 | 0 | — |
| 2021 | 2 | 4 | 0 | — |
| 2020 | 16 | 3 | 0 | 41.2 |
| 2019 | 2 | 1 | 0 | — |
| 2018 | 7 | 2 | 0 | — |
| 2017 | 0 | 0 | 0 | — |
| 2016 | 0 | 0 | 0 | — |
| 2015 | 1 | 1 | 0 | — |
| 2014 | 17 | 1 | 0 | 31.6 |
| 2013 | 32 | 1 | 0 | 33.0 |
| 2012 | 22 | 1 | 0 | 40.2 |
| 2011 | 26 | 1 | 0 | 38.1 |
| 2010 | 60 | 0 | 0 | 36.5 |
| 2009 | 0 | 2 | 0 | — |
| 2008 | 4 | 2 | 0 | — |
| 2007 | 13 | 2 | 0 | 48.4 |
| 2006 | 30 | 2 | 0 | 40.3 |
| 2005 | 43 | 2 | 0 | 45.0 |
| 2004 | 29 | 1 | 0 | 34.7 |
| 2003 | 1 | 1 | 0 | — |
| 2002 | 22 | 1 | 0 | 32.7 |
| 2001 | 87 | 1 | 0 | 39.2 |
| 2000 | 143 | 1 | 0 | 39.6 |
| 1999 | 0 | 0 | 0 | — |
| 1998 | 0 | 0 | 0 | — |
| 1996 | 0 | 1 | 0 | — |
| 1995 | 1 | 2 | 1 | — |
| 1994 | 7 | 2 | 1 | — |
| 1993Viewing | 16 | 2 | 1 | 45.8 |
| 1992 | 5 | 2 | 1 | — |
| 1991 | 0 | 1 | 0 | — |
| 1990 | 0 | 1 | 0 | — |
| 1989 | 0 | 1 | 0 | — |
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. Older model years have had longer for reports to accumulate.