The 1994 Audi S4 has 2 NHTSA recall campaigns affecting an estimated 27,000 vehicles. Recall repairs are always free at any authorized dealer. Owners have filed 8 complaints with NHTSA, most often about the fuel system, gasoline. Last updated July 5, 2026.
VEHICLE DESCRIPTION: PASSENGER VEHICLES. A FUEL FEED LINE CONNECTING THE FUEL FILTER TO THE ENGINE CAN PREMATURELY AGE AND SHRINK THROUGH EXPOSURE TO HIGH UNDER HOOD TEMPERATURE CAUSED BY THE TURBOCHARGER.
THIS CAN RESULT IN FUEL SEEPAGE AT THE CONNECTION.
DEALERS WILL REPLACE THE ENTIRE FUEL FEED LINE FROM THE FUEL FILTER TO THE ENGINE WITH A FUEL LINE OF SHRINKAGE-PROOF MATERIAL.
DEFECTIVE IGNITION SWITCHES WERE IMPROPERLY MANUFACTURED AND CAN CAUSE SOME ELECTRICAL ACCESSORIES TO MALFUNCTION.
SOME ELECTRICAL ACCESSORIES, SUCH AS, TURN SIGNALS, WINDSHIELD WIPERS, LAMPS, POWER WIND0WS AND AIR CONDITIONERS CAN MALFUNCTION WHEN THE CAR IS STARTED.
DEALERS WILL REPLACE THE IGNITION SWITCH.
Verbatim reports filed with NHTSA, lightly edited for readability and with personal information removed.
“There is a severe safety problem associated with the audi 94s4, other model year s cars and other audi cars with the 100 body. When the plastic part that connects the throttle body to the throttle cable breaks, the engine goes up to 7000 rpm (over red line). If in heavily congested traffic as I…”
“There is a severe safety problem associated with the audi 94s4, other model year s cars and other audi cars with the 100 body. When the plastic part that connects the throttle body to the throttle cable breaks, the engine goes up to 7000 rpm (over red line). If in heavily congested traffic as I…”
“Brakes are not working properly. Dealer has redone brakes twice.*ak”
“Fuel supply line leaks. *ak”
“Intermittent fuel line leak near exhaust manifold and turbocharger. *ak”
“The fuel line was found to be leaking gasoline rather heavily. The leak occured in close proximity to the exhaust and turbocharger. The failed fule line was previously replaced in january 1997 at about 61,622 miles for the same failure. The car was examined by dealer personnel for complaints of…”
“While traveling smelled fuel inside vehicle. Dealer stated fuel line had a leak. Please provide further information. *ak”
“Recall oov068000; ky consumer contacted t manufacturer, manufacturer stated this vehicle not included due to vin. Consumer noted in cold weather fuel leaks at the line, lines are very wet. Also, a gas smell in passenger's compartment. *ak”
There is no summary currently available
There is no summary currently available
Recall, complaint, and investigation records from official NHTSA datasets (FLAT_RCL, FLAT_CMPL, FLAT_INV), synced weekly. Counts reflect NHTSA records for the 1994 Audi S4 as of July 5, 2026. Complaint narratives are consumer-submitted and unverified. This page contains ads and affiliate links. Full methodology.