2004 Audi S4 Service and Repair Manual
This manual is built specifically for the 2004 Audi S4 in its Avant, Cabriolet, or Base sedan form, keyed to the 4.2L V8 (engine code BHF) so the torque figures, clearances, and diagnostic trees you get are Audi's actual factory data for this car, not an approximation drawn from a related model year.
Engines covered
- 4.2L V8 — DOHC, naturally aspirated, gasoline
Body styles covered
- 2-door convertible
- 4-door sedan
- 4-door wagon
Trims covered
- Base
- Avant
- Cabriolet
Known issues on the 2004 S4. One recall is on federal record for this model year, covering the xenon headlamps: the coating on the lamp can degrade over time, reducing luminous transmittance and narrowing the driver's field of view, which raises the risk of a crash. Owners have filed 29 complaints for the year, and no technical service bulletins are logged. The factory diagnostic and repair procedures behind that system are here.
Whether you're inspecting the headlamp assembly, working through the V8's service intervals, or tracking down another issue owners have reported, it keeps you on Audi's own procedure and specification for your specific 2004 S4.
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.
THIS CONDITION COULD AFFECT A DRIVER'S FIELD OF VIEW, INCREASING THE RISK OF A CRASH.
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.
This bulletin provides information on the additional reporting requirements for safety related inquiries.
High quality media files (video and sound) are now integrated into technical service bulletins on a case-by-case basis. Media files can now be viewed on any smartphone or tablet.
The use of contaminated gasoline or gasoline with a low content of deposit control additives may result in one or more conditions.
This Technical Service Bulletin (TSB) details the general process for carrying out a Software Version Management (SVM) software update for any TSB or Update.
ATF pan leaks
Vehicle lacks power or will not move after stop due to simultaneous depressing of the brake and accelerator pedals
High quality media files (video and sound) are now integrated into technical service bulletins on a case-by-case basis. Media files can now be viewed on any smartphone or tablet.
The use of contaminated gasoline or gasoline with a low content of deposit control additives may result in one or more conditions.
Showing the 8 most recent of 121 technical service bulletins on file with NHTSA.
TL* THE CONTACT OWNS A 2004 AUDI S4. WHILE DRIVING AT NIGHT, THE LOW BEAM HEAD LAMPS FAILED TO ILLUMINATE WITHOUT WARNING. WHILE ATTEMPTING TO THE HEAD LAMP BULBS, THE CONTACT NOTICED THAT THE WIRING
TL*THE CONTACT OWNS A 2004 AUDI S4. WHEN THE WEATHER WAS COLD AND THE CONTACT TOOK HIS FOOT OFF OF THE ACCELERATOR, THE VEHICLE WOULD NOT SLOW DOWN. THE DEALER COULD NOT DUPLICATE THE PROBLEM. THE CUR
2004 AUDI S4 CONVERTIBLE - 40K - REAR WINDOW OF CONVERTIBLE TOP HAS SEPARATED FROM TOP - APPEARS TO BE GLUE, ATTACHMENT METHOD FAILURE. CALLED AUDI OF AMERICA REQUESTING ASSISTANCE, V. NICE - WANTE
ON SATURDAY MORNING 12/15/2014 START MY CARD AND HEARD A RATTLE NOISE ON THE ENGINE, FIRST TIME IT MAKE THAT NOISE SINCE I BOUGHT IT. ON MY WAY TO WORK I STARTED HEARING THE RATTLE NOISE AGAIN BUT TH
CAR ENGINE WAS MISFIRING - WAS INFORMED A FAULTY COIL PACK WAS CAUSING THE ISSUE. ONE WEEK LATER THE MISFIRES STARTED AGAIN. TWO MORE COIL PACKS WERE REPLACED. 2 WEEKS LATER ANOTHER MISFIRING EPISODE.
SEE THE NHTSA ODI COMPLAINTS: 10267048, 10263937, 10262201, 10261864, 10261281, AND 10294798. MY SECOND EXPERIENCE WITH THE CATASTROPHIC ENGINE FAILURE OF THE "CAM CHAIN TENSIONER" COMPONENTS WAS I
SEE THE NHTSA ODI COMPLAINTS: 10267048, 10263937, 10262201, 10261864, AND 10261281 MY FIRST EXPERIENCE WITH THE CATASTROPHIC ENGINE FAILURE OF THE "CAM CHAIN TENSIONER" COMPONENTS WAS IN DEC OF 200
AFTER ENGINE COOLS DOWN, TIMING CHAIN RATTLE CAN BE HEARD UPON STARTING THE CAR. CHAIN RATTLE MEANS THAT PLASTIC GUIDES OR ADJUSTERS ARE WORN, AND MIGHT GO ANY SECOND. SPOKE WITH AUDI REP ONLINE, WHIC
Showing the 8 most serious of 29 complaints filed with NHTSA.
