1994 Audi S4 problems
The Audi S4 is the high performance variant of Audi's compact executive car A4. The original Audi S4, built from 1991 until 1994, was a performance-oriented version of Audi's 100 saloon/sedan. All subsequent S4s since 1997 have been based on the Audi A4; and as the A4 has evolved from one generation to the next, so has the S4.
Like its regular A4 counterpart, all S4 variants have had longitudinally oriented, front-mounted engines. All versions of the S4 have their transmission mounted immediately at the rear of the engine in a longitudinal orientation, in the form of a transaxle, and like all Audi "S" cars, are only available as standard with Audi's quattro all-wheel drive (AWD) system, using a Torsen-based centre differential system. A more powerful internal combustion engine, larger upgraded brakes, firmer suspension, larger wheels, and distinctive sheetmetal, styling clues and badging have always been amongst the many upgrades the S4 receives over its mainstream 100 and A4 siblings. In markets where the even higher-performance Audi RS 4 is not offered, the S4 is the top-of-the-line trim of the A4 family.
A single turbocharged 2.2-litre inline five-cylinder powered the original C4 version, and a 2.7-litre twin turbocharged V6 engine was found in the B5 generation. The B6 and B7 versions shared a common 4.2-litre V8 engine, the first time that a V8 engine was placed in a compact executive car, placing it in direct competition with the BMW M3 (3.2 L inline 6) and Mercedes-Benz C32 AMG (3.2-litre supercharged V6). The B8 generation uses a supercharged 3.0-litre V6 TFSI engine and competed with the BMW 335i, BMW 335i/340i xDrive, and Mercedes-Benz C350. The current B9 generation is powered by a turbocharged 3.0-litre V6 TFSI engine, with rivals including the BMW M340i xDrive and Mercedes-Benz C450 AMG/Mercedes-AMG C43 4MATIC.
All versions of the S4 have been manufactured at Audi's plant in Ingolstadt, Germany; they are, or have been available as a four-door five-seat saloon and a five-door five-seat Avant (Audi's name for an estate car/station wagon) body styles since the model's inception in 1991. A two-door four-seat Cabriolet (convertible) S4 variant was introduced as part of the B6 and B7 generation A4 lineups. The B8 Cabriolet has now been built off the A5 coupe body style and the "S" variant is marketed under the Audi S5 nameplate.
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Common 1994 Audi S4 problems
The Audi S4, first introduced in 1994, has been a popular choice among car enthusiasts for its high-performance capabilities and luxurious features. However, like any car, the Audi S4 has its share of common problems that owners should be aware of.
One of the most common issues reported with the first generation Audi S4 is a failure of the turbocharger system. This can be caused by a number of factors, including a worn wastegate or a malfunctioning boost pressure control valve. Symptoms of a failing turbocharger system include a loss of power, poor fuel efficiency, and increased exhaust smoke.
Another issue reported with the first generation Audi S4 is a failure of the camshaft position sensor. This can cause a range of problems, including rough idling, poor acceleration, and difficulty starting the engine. In some cases, the engine may even stall while driving. This issue can be particularly problematic for owners, as it can lead to more serious engine problems if not addressed promptly.
Other issues reported with the first generation Audi S4 include problems with the fuel system, including a faulty fuel pump or fuel pressure regulator. These issues can cause a range of symptoms, including poor fuel efficiency, a loss of power, and difficulty starting the engine. Owners of the first generation Audi S4 should also be aware of potential issues with the transmission system. Some owners have reported problems with the transmission slipping or failing to shift properly, which can cause damage to the gearbox and other components.
The 2015 Audi S4, which marked the final year of the third-generation model, also had its fair share of issues. One of the most common issues was related to the engine, with some drivers reporting engine misfires and rough idling. This could be caused by a faulty ignition coil. Other drivers reported issues with the turbocharger system, including boost pressure problems and turbo failure.
Another common issue reported by 2015 Audi S4 owners was related to the transmission. Some drivers experienced delayed shifting, which could be caused by low transmission fluid or a malfunctioning valve body. Other drivers reported issues with the transmission control module, which could cause the car to jerk or hesitate when accelerating.
In addition to these mechanical issues, some drivers reported problems with the car's electrical system. This included issues with the infotainment system, such as freezing or crashing, as well as problems with the car's lighting system, such as the headlights flickering or turning off unexpectedly. Finally, some drivers reported issues with the car's suspension system, including problems with the car's shocks and struts, which could cause a bumpy or uncomfortable ride. Other drivers reported issues with the car's steering system, including steering wheel vibrations and steering fluid leaks.
Overall, the Audi S4 is a high-performance sedan that has been well received by car enthusiasts and reviewers alike. However, owners should be aware of potential issues with the turbocharger system, camshaft position sensor, fuel system, transmission system, electrical system, and suspension system in order to properly maintain and address any problems that may arise. Regular maintenance and careful attention to any warning signs can help ensure a safe and enjoyable driving experience.
What is the top speed of the Audi S4 1994?
The top speed is electronically limited to 250 km/h (155.3 mph).
Is an Audi S4 a fast car?
0-60 MPH Times
Looking at the numbers, the S4 ranks above most competitors in performance. The 0-60 mph time for the Audi S4 in our testing was 4.2 seconds.
What is the problem with the Audi S4 B5?
This is because the B5 S4 does not have a reputation for reliability. Common problems include (but are definitely not limited to) wheel bearings, spark plugs, coils, ignition control modules, diverter valves, rear main seal, valve cover gaskets, chain tensioner and gasket, and the coolant temperature sensor.
What is a Audi S4 worth?
2021 Audi S4 Value - $27,430-$37,864 | Edmunds.
Is the Audi S4 engine reliable?
The S4 is known to have a lot of issues like a failed thermostat, turbocharger failure, engine oil leaks, and premature brake wear, among others. Maintaining an unreliable sedan like the Audi S4 can be costly, but facing a few common issues is worth it if owning a high-performance car can give you a lot of joy.
What is the top speed of the Audi S4 1994?
The top speed is electronically limited to 250 km/h (155.3 mph).
How many miles can an S4 last?
You can expect the average Audi S4 to last up to and potentially over 100,000 miles without the need for significant repairs, but only if you take the time to perform routine maintenance while driving in a safe and controlled manner.
Is a B5 S4 reliable?
This is because the B5 S4 does not have a reputation for reliability. Common problems include (but are definitely not limited to) wheel bearings, spark plugs, coils, ignition control modules, diverter valves, rear main seal, valve cover gaskets, chain tensioner and gasket, and the coolant temperature sensor.
1994 Audi S4 car problems categorized by type of issue
After analyzing all complaints sent to the NHTSA and researching popular Audi S4 problems, we found that the most common problems with these 2023 model year vehicles are:
- Fuel system problems
- Gasoline problems
- Engine and engine cooling problems
- Service brakes problems
- Hydraulic problems
The graph below shows statistics for all 1994 Audi S4 vehicle components and the number of complaints received.
1994 Audi S4 complaints
The NHTSA has received 7 complaints about various vehicle components related to the 1994 Audi S4.
ENGINE AND ENGINE COOLING,FUEL SYSTEM, GASOLINE PROBLEM
- Date Of Incident: 2007-01-16
- VIN: WAUHR84A1RN
- Components: ENGINE AND ENGINE COOLING,FUEL SYSTEM, GASOLINE
- Summary: 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 WAS, THE OWNER RISKS HIS LIFE OR HIS ENGINE. SINCE I DECIDED MY LIFE AND THAT OF MY PASSENGERS WAS MORE IMPORTANT THAN THE ENGINE, I LET THE ENGINE RACE AND USED THE BRAKE TO CONTROL SPEED UNTIL I COULD SAFELY GET OFF THE BELTWAY AND ONTO A SIDE ROAD. ONCE THERE, I SAW THAT MY EXHAUST MANIFOLD HAD GOTTEN CHERRY RED WITH AND COULD HAVE CAUSED A FIRE. THESE CARS NEED IMMEDIATE RECALL AS A SAFETY MEASURE AND THE PART REPLACED WITH METAL. FAILURE WAS WITHOUT WARNING, CAR''S SPEED BEGAN TO INCREASE WITHOUT WARNING AND THROTTLE PRESSURE HAD NO IMPACT WHATSOEVER. LESS SKILLFUL PERSON WOULD HAVE PANICKED AND CAUSED SEVERE PILE-UP IN RUSH HOUR TRAFFIC. MANY OTHER AUDI OWNERS HAVE REPORTED THE PROBLEM ON THE VARIOUS COMPUTER LISTS AND WEB SITES USED BY AUDI OWNERS. CALL OR WRITE FOR DETAILS. AUDI DEALER WAS UNCONCERNED ABOUT PROBLEM AND PART IS NOT LISTED NOR CAN BE PURCHASED SEPARATELY. MUST PURCHASE ENTIRE THROTTLE BODY AT COST OF OVER $800. *NM
SERVICE BRAKES, HYDRAULIC PROBLEM
- Date Of Incident: 2001-04-01
- VIN: WAUCK84AIRN
- Components: SERVICE BRAKES, HYDRAULIC
- Summary: BRAKES ARE NOT WORKING PROPERLY. DEALER HAS REDONE BRAKES TWICE.*AK
FUEL SYSTEM, GASOLINE PROBLEM
- Date Of Incident: 2024-11-24
- VIN: WAUAR84A9RN
- Components: FUEL SYSTEM, GASOLINE
- Summary: 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
FUEL SYSTEM, GASOLINE PROBLEM
- Date Of Incident: 2000-02-01
- VIN: WAUHR84A7RN
- Components: FUEL SYSTEM, GASOLINE
- Summary: INTERMITTENT FUEL LINE LEAK NEAR EXHAUST MANIFOLD AND TURBOCHARGER. *AK
FUEL SYSTEM, GASOLINE PROBLEM
- Date Of Incident: 2024-11-24
- Components: FUEL SYSTEM, GASOLINE
- Summary: WHILE TRAVELING SMELLED FUEL INSIDE VEHICLE. DEALER STATED FUEL LINE HAD A LEAK. PLEASE PROVIDE FURTHER INFORMATION. *AK
FUEL SYSTEM, GASOLINE PROBLEM
- Date Of Incident: 2000-03-01
- VIN: WAUHR84A2RN
- Components: FUEL SYSTEM, GASOLINE
- Summary: FUEL SUPPLY LINE LEAKS. *AK
FUEL SYSTEM, GASOLINE PROBLEM
- Date Of Incident: 1999-06-12
- VIN: WAUHR84A6RN
- Components: FUEL SYSTEM, GASOLINE
- Summary: 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 GASOLINE SMELL AND LEAKING FUEL LINE ON TWO PRIOR OCCASIONS IN 1996. THE INITIAL FAILURE WAS REPAIRED UNDER AN EXTENDED WARRANTY. THE SECOND FAILURE (1999) WAS REPAIRED AT THE MANUFACTURER'S EXPENSE, AS I UNDERSTAND IT.
1994 Audi S4 recalls
The National Highway Traffic Safety Administration (NHTSA) has issued 2 recalls for different components of the 1994 Audi S4.
- Manufacturer: VOLKSWAGEN OF AMERICA,INC
- Components: FUEL SYSTEM, GASOLINE:DELIVERY:HOSES, LINES/PIPING, AND FITTINGS
- Summary: 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.
- Consequence: THIS CAN RESULT IN FUEL SEEPAGE AT THE CONNECTION.
- Remedy: DEALERS WILL REPLACE THE ENTIRE FUEL FEED LINE FROM THE FUEL FILTER TO THE ENGINE WITH A FUEL LINE OF SHRINKAGE-PROOF MATERIAL.
- Manufacturer: VOLKSWAGEN OF AMERICA,INC
- Components: ELECTRICAL SYSTEM:IGNITION:SWITCH
- Summary: DEFECTIVE IGNITION SWITCHES WERE IMPROPERLY MANUFACTURED AND CAN CAUSE SOME ELECTRICAL ACCESSORIES TO MALFUNCTION.
- Consequence: SOME ELECTRICAL ACCESSORIES, SUCH AS, TURN SIGNALS, WINDSHIELD WIPERS, LAMPS, POWER WIND0WS AND AIR CONDITIONERS CAN MALFUNCTION WHEN THE CAR IS STARTED.
- Remedy: DEALERS WILL REPLACE THE IGNITION SWITCH.
Negative 1994 Audi S4 car reviews
Positive 1994 Audi S4 car reviews
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That sounds great, especially for the summer season and on our road!
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I've owned this car since 1994 and I still can't imagine parting with it someday. It has extraordinary everyday performance, great handling and braking, and quattro security over all surfaces and conditions, making it a favorite of mine, my wife, and my friends (whenever they get a chance to drive it!). One of its best features is how it's not a commonly known car, so you can quietly go about your business without drawing too much attention.
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This car is a fantastic example of German engineering. It's fast, fun, and reliable, excelling in all areas. With Quattro, it can handle driving in rain or snow with ease, while other cars struggle for traction.
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The S4 is an amazing blend of luxury and performance. Its unique 5-cylinder turbo engine, coupled with a 5-speed transmission and all-wheel drive, makes driving this car an absolute blast. Accelerating through the curves is a thrilling experience, and the quattro system keeps you glued to the road. I'm looking forward to putting many more miles on this beauty!
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Your 1994 Audi S4 sounds like an exceptional vehicle! It's amazing that after 13 years, you're still happy with it. It's great to hear that you've had absolutely no mechanical problems with it and that it has a classic design. It's impressive that it still looks so good that no one believes it's 13 years old. With only 102,000 miles on it, it sounds like it still has a lot of life left in it. It's wonderful that your son has requested the vehicle be placed in his name in your estate planning. It's clear that you love your car and wouldn't change a thing about it. Thank you for sharing your positive experience with us!
Additional sources
More sources of information about 1994 Audi S4 problems:
Reliability of Ur S4/S6 vs B5 S4?
Jun 21, 2010 ... I love the looks of the older Audis. I love my B5 and would love to have an Ur, but want to be aware of any common problems they have before I ...
Buying a 2005 S4 (B6) - AudiWorld Forums
May 2, 2011 ... ... common, d4, expensive, issue, issues, owning, s4, start, tips, websiteaudizinecom · Subscribe. Related Topics. 2004 B6 Audi S4, purchase or no?
looking to buy a 2nd car for the winter.(1994 Audi S4 2.2 Turbo ...
Oct 27, 2010 ... body is in great shape.. such a nice classic car... any reliability issues u guys know about... i heard the the transmition tends to go ...
Audi S4 Problems and Complaints - 17 Issues
Top Audi S4 Problems · Overheating Due to Failing Thermostat · Inspect CV Boots and Joints at Each Service · Check Engine Light Due to Faulty Torque Converter.
How common is the Audi 4.2 timing chain guide issue? : r/cars
Mar 5, 2021 ... S5 didn't have the same problems as the S4, the issue was fixed. Upvote
Other years of Audi S4
Are you having problems with your 1994 Audi S4?
Cary Leffler 2024-07-29
I bought my S4 based on its impressive performance and longevity. However, I was not aware of the high cost of operation. Although I had seen many of these cars modified for extra horsepower and hitting 300k miles, I encountered several issues and anticipated more to come. Considering the car's nearly $50k price tag, one would expect it to be more reliable. Nonetheless, the drivetrain and quattro systems are exceptional and provide an exhilarating driving experience in both snow and dry pavement. Unfortunately, the other systems and components have been problematic. Even when new, the car required repairs or adjustments every 10k miles.