Audi S4 electrical problems
22 complaint narratives mention electrical terms.
Key facts
574 owner complaints analyzed
16 distinct recall campaigns
55,000 mi median reported failure mileage
Scope: 1989 to 2022 model years. Data snapshot: . 377 complaints include usable failure mileage.
Electrical and battery issues evidence
22 of 574 complaints match this topic (3.8%). The keyword filter can include complaints that mention a transmission without reporting its failure. View matching rules.
Owner report 10091120 · 2004-09-16 (September 16, 2004)
IT SEEMS THAT THERE IS A MANUFACTURING DEFECT AMONG B5 PLATFORM AUDI A4 VEHICLES, WHERE EITHER THE ABS CONTROLLER IS APT TO FAIL PREMATURELY, OR THE CONNECTION BETWEEN THE CONTROLLER AND THE INSTRUMENT CLUSTER FAILS. DUE TO THE HIGH FREQUENCY OF FAILURES, IT SEEMS HIGHLY UNLIKELY THAT THE ABS CONTROLLER IS AT FAULT AND PRONE TO SUCH A HIGH FAILURE RATE. WIRING TO THE INSTRUMENT CLUSTER SEEM TO BE THE MORE LIKELY CAUSE, YET DEALERS ALMOST EXCLUSIVELY DECIDE TO POINT TO THE CONTROLLER, WHICH COSTS UPWARDS OF $1200. THIS CONDITION IS UNDOUBTEDLY…
Owner-reported narrative. Look up ODI 10091120 at NHTSA ↗
Owner report 10100341 · 2004-11-22 (November 22, 2004)
THE ABS AND BRAKE LIGHTS ON MY DASHBOARD INITIALLY FLASHED AND BEEPED INTERMITTENTLY, BUT NOW ARE ON CONSTANTLY. UPON RESEARCHING THE ISSUE, I'VE DISCOVERED THAT THIS IS A PROBLEM EXPERIENCED MY MANY OTHER MY2000 S4 OWNERS. THIS IS A SIGNIFICANT SAFETY ISSUE, AS THERE IS THE RISK THAT BRAKES MAY LOCK UP (EVEN WHEN RELEASING THE PEDAL) UNDER BRAKING WHEN EXPERIENCING THESE SYMPTOMS. PLEASE TAKE ACTION ON THIS ISSUE. I KNOW MANY OWNERS WHO HAVE NO CHOICE BUT TO HOLD OFF ON THE REPAIR DUE TO THE AMOUNT BEING CHARGED BY DEALERS TO REPLACE THE PART …
Owner-reported narrative. 67,000 miles reported. Look up ODI 10100341 at NHTSA ↗
Owner report 10112416 · 2005-03-02 (March 2, 2005)
2000 AUDI S4 ABS COMPUTER MODULE IS DEFECTIVE. CODE 01203. THE ABS AND BRAKE LIGHT FLASH AND BEEP ALL OF THE TIME FOR NO REASON. THIS IS A KNOWN ISSUE WITH THE ABS UNITS. AOA HAS NOT FILLED A SAFETY RECALL FOR HTIS ITEM YET. WE NEED TO HAVE A SAFETY RECALL FOR THE ABS COMPUTER/MODULE DUE TO POTENTIAL ACCIDENTS WHEN WHEELS LOCK UP AND CAR SKIDS OUT OF CONTROL. NUMEROUS OTHER COMPLAINTS ABOUT ABS PROBLEMS AND ACCIDENTS HAVE BEEN DOCUMENTED DUE TO ABS FAILURE. IT IS A SIMPLE FIX BUT PART COSTS $1K ALONE NOT INCLUDING LABOR. LOOKED ON FORUMS, IT SE…
Owner-reported narrative. Look up ODI 10112416 at NHTSA ↗
Owner report 10116441 · 2005-04-05 (April 5, 2005)
LIKE MANY OTHER PEOPLE WHO OWN AN AUDI S4 WITH 50,000 MILES, I AM HAVING BRAKE LIGHT ISSUES. ONLY MINE ARE MUCH MORE SEVERE THAT WHAT I HAVE READ THUS FAR. I TOOK MY CAR IN FOR IT'S 60000, AND HAD THE MECHANIC CHECK THE BRAKE LIGHT. LEADING UP TO THE REPAIR, I HAD BEEN *LOSING BRAKE FLUID* ALMOST MONTHLY. THIS SHOULD NEVER HAPPEN, FOR ANY REASON. BUT, MY MECHANIC TOOK THREE HOURS AND DISCOVERED THAT THE BATTERY WAS LEAKING SULFURIC ACID ONTO MY BRAKE LINE, MY POWER STEERING LINE, AND MY CLUTCH LINE. HE STATED, "ONLY A MECHANICAL MORON WOULD HOU…
Owner-reported narrative. 56,000 miles reported. Look up ODI 10116441 at NHTSA ↗
Owner report 10116550 · 2005-04-07 (April 7, 2005)
POSTED COMMENT EARLIER ABOUT BATTERY ACID LEAKING ONTO CLUTCH LINE AND BRAKE LINE CAUSING SEVERE DAMAGE TO BOTH LINES... SPOKE WITH AUDI AND THEY STATED THAT THE ENGINE DOES NOT HAVE TO BE REMOVED FOR THE BRAKE LINE TO BE FIXED... THE MOST LIKELY CULPRIT OF THIS LEAK IS DUE AN OVERCHARGED BATTERY DUE TO A JUMP OR MANUAL RE-CHARGE (NOTE: ACCORDING TO AUDI, NEVER REPLACE THE S4 BATTERY WITH ANYTHING OTHER THAN WITH AN AUDI BATTERY... OF COURSE THEY WOULD SAY THIS, BUT HE WAS PRETTY CONVINCING... 2ND NOTE: I DO HAVE AN AUDI BATTERY IN MY S4, AND I…
Owner-reported narrative. 59,000 miles reported. Look up ODI 10116550 at NHTSA ↗