1998 Audi A4 Recalls, Problems & Maintenance

The 1998 Audi A4 has no open NHTSA recalls. Owners report 8 recurring issue clusters, led by “ABS control module failure and warning lights.” Audi follows the VW Group Longlife service rhythm: oil and minor service every 10,000 miles or 12 months, whichever comes first, using oil that meets VW 502 00 / 504 00 (or 508 00 for newer 0W-20 engines) — generic synthetic does not qualify. S tronic dual-clutch gearboxes need fluid service every 40,000 miles despite 'lifetime fill' claims. Fully electric models (e-tron, e-tron GT) skip oil service entirely but keep brake-fluid, cabin-filter, and coolant-circuit intervals.

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No open recalls on file. NHTSA lists no unrepaired safety recalls for this year, make and model. A recall can be issued at any time, and a specific car can still have one open — check yours by VIN at nhtsa.gov/recalls.

Known issues & problems for this vehicle

What drivers and federal regulators have officially reported about the 1998 Audi A4.

Reported to NHTSA

ABS control module failure and warning lights

SERVICE BRAKES, HYDRAULIC

43 NHTSA complaints · 2003-10 → 2017-02

“THE ABS CONTROL UNIT ON MY AUDI A4 FAILED AFTER ONLY 67,000 MILES. I HAVE NO ANTI-LOCK BRAKING WHATSOEVER, AND AUDI HAS DENIED ANY RESPONSIBILITY FOR THE PART SINCE IT IS OUT OF WARRANTY”
— Owner report, NHTSA ODI #10152664
“ABS/BRAKE LIGHT JUST STARTED FLASHING. THE ABS BRAKES ARE NOT WORKING ABS MODULE IS THE CAUSE. UNDER HARD BRAKING OR WET CONDITIONS THE CAR SLIDES LOOSES TRACTION. OLD PART IS STILL IN CAR TO EXPENSIVE TO REPLACE RIGHT NOW”
— Owner report, NHTSA ODI #10173437
“ABS LIGHT COMES ON INTERMITTENTLY AND ABS SYSTEM IS NOT FUNCTIONAL. ABS SYSTEM ALSO USED IN ELECTRONIC DIFFERENTIAL CONTROL. AUDI DEALER DIAGNOSED AS A ABS CONTROL UNIT FAILURE WITH PART COST OF $2600 PLUS LABOR AND WAS REPAIRED BY AUDI DEALER”
— Owner report, NHTSA ODI #10124248

Read all complaints on NHTSA →

Delayed braking response when brakes are wet

SERVICE BRAKES, HYDRAULIC

31 NHTSA complaints · 2000-05 → 2003-06

“WHEN DRIVING IN THE RAIN, THE BRAKES DO NOT IMMEDIATELY GRAB. THERE IS A ONE HALF TO ONE SECOND DELAY BEFORE THE BRAKES BECOME EFFECTIVE. IT IS ESPECIALLY NOTICABLE ON THE HIGHWAY WHEN YOU HAVE NOT TOUCHED THE BRAKES IN SEVERAL MILES”
— Owner report, NHTSA ODI #739800
“SINCE I HAVE OWNED TH CAR, I HAVE EXPERIENCED A DELAY OR A LACK OF BRAKING ABILITY WHEN DRIVING IN THE RAIN. I HAVE HAD A FEW NEAR ACCIDENTS WHEN I HAD TO BRAKE SUDDENLY AND I HAD NO RESPONSE. LUCKILY I HAD QUATRRO AND ROOM TO MOVE. NORMAL DRIVING IS O.K”
— Owner report, NHTSA ODI #723019
“IN HEAVY RAIN OR SLUSH, BRAKING IS SEVERELY DEGRADED. IT APPEARS THAT THE BRAKE ROTORS AND/OR PADS ACT LIKE SPONGES IN WET WEATHER, AND CAN'T SHED WATER FAST ENOUGH DURING INITIAL BRAKING. A SCAREY 1-2 SECONDS WILL ELAPSE BEFORE THE BRAKES, UNDER HIGH PEDAL PRESSURE, WILL ENGAGE”
— Owner report, NHTSA ODI #743183

Read all complaints on NHTSA →

Timing belt and tensioner failure with engine damage

ENGINE AND ENGINE COOLING

18 NHTSA complaints · 2001-12 → 2009-11

“WHILE DRIVING 1998 AUDI 1.8 T ALONG HIGHWAY WHEN TIMING BELT FAILED, WITHOUT WARNING, WRECKING ENGINE. CAR HAD ONLY 58K MILES, AND OWNERS MANUAL DOES NOT RECOMMEND REPLACING TIMING BELT UNTIL 90K MILES”
— Owner report, NHTSA ODI #10088498
“AUDI A4 1.8T Q TIMING BELT TENSIONER FAILED AT 75,000 CAUSING CATASTROPHIC ENGINE DAMAGE. SERVICE INTERVAL PUBLISHED BY AUDI IS NO EARLIER THAN 90,000MI. TENSIONER FAILURE IS KNOWN DEFECT AND HAS BEEN REDESIGNED BY AUDI, YET AUDI WILL NOT ACKNOWLEDGE THE DEFECT”
— Owner report, NHTSA ODI #10029161
“WHILE DRIVING AT HIGHWAY SPEEDS VEHICLE LOST ALL POWER AND WAS STUCK ON DANGEROUS FREEWAY OVERPASS. DEALER DIAGNOSED PROBLEM AND INFORMED CONSUMER THAT TIMING BELT TENSIONER HAD BROKEN, AND CAUSED EXTENSIVE ENGINE DAMAGE. ENGINE HAS TO BE REPLACED”
— Owner report, NHTSA ODI #768699

Read all complaints on NHTSA →

Front suspension control arm failure

SUSPENSION

14 NHTSA complaints · 2000-08 → 2010-01

“WAS SLOWING DOWN FOR A RED LIGHT WHEN THE FRONT DRIVERS SIDE LOWER CONTROL ARM FAILED AT THE BALL JOINT. WAS PROBABLY TRAVELING 10-15 MPH IN TRAFFIC ON A 50MPH ROAD. THE FRONT LEFT HIT THE GROUND AND THE CAR STOPPED QUICKLY”
— Owner report, NHTSA ODI #10074860
“1998 AUDI A4 FWD / 101,000 MILES / BROKEN DRIVERS SIDE FRONT LOWER CONTROL ARM / FRONT SUSPENSION COMPONENT (LOWER FRONT CONTROL ARM) SNAPPED AT BUSHING AS I WAS PARKING”
— Owner report, NHTSA ODI #10060852
“CONTROL ARM ON MY 1998 AUDI A4 FRACTURED WHEN PULLING OUT OF A PARKING LOT, CAUSING COMPLETE LOSS OF STEERING CONTROL. AUDI TECHNICAL SERVICE BULLETIN NHTSA # 10016418, #11242004 COMPONENT DESCRIPTION: 22”
— Owner report, NHTSA ODI #10299063

Read all complaints on NHTSA →

Tie rod failure and recall 99V248 coverage

STEERING

12 NHTSA complaints · 2000-07 → 2009-10

“WHILE TURNING CONSUMER HEARD A LOUD NOISE COMING FROM THE FRONT TIE RODS, AND IT WAS HARD TO TURN THE STEERING WHEEL. DEALERSHIP WAS NOTIFIED, BUT DID NOT RESOLVE THE ISSUE. *AK”
— Owner report, NHTSA ODI #10063018
“TIE RODS FAILED JUST AS IN RECALL CAMPAIN, BUT I WAS TOLD MY CAR FELL 1 MONTH OUTSIDE OF RECALL DATE, NOTHING DONE. *AK”
— Owner report, NHTSA ODI #10089060
“NHTSA RECALL #99V248000 CONCERNING TIE RODS. THIS VEHICLE IS OUTSIDE OF RECALL SCOPE. CONSUMER HAS A FILE WITH AUDI IDENTIFYING THE FAILURE OF THE TIE RODS. MOISTURE/DUST PARTICLES ARE GETTING INSIDE SWIVEL BEARING”
— Owner report, NHTSA ODI #8016441

Read all complaints on NHTSA →

Ignition switch failing to return from start

ELECTRICAL SYSTEM

11 NHTSA complaints · 2001-07 → 2006-12

“IGNITION SWITCH FAILS TO RETURN TO RUN FROM START AFTER STARTING CAR. IF THE THE KEY IS NOT RETURNED FROM START MANUALLY, THE ACCESSORIES (I.E WINDOWS, LIGHTS, RADIO, FAN, ETC) WILL NOT RUN AND THE STARTER WILL CONTIUE TO RUN POTENTIATING THE FAILURE OF THAT PART”
— Owner report, NHTSA ODI #10052770
“THE PROBLEM: IGNITION SWITCH RETURN SPRING THERE IS A PROBLEM WITH MY IGNITION SWITCH. AFTER STARING THE ENGINE, THE RETURN SPRING DOES NOT FULLY RETURN THE KEY TO THE RUN POSITION, CAUSING A MALFUNCTION OF THE HEADLIGHTS AND CLIMATE CONTROL”
— Owner report, NHTSA ODI #10005244
“CONSUMER STATES IGNITION SWITCH HOUSING IS DEFECTIVE, THE RETURN SPRING FORCE IS INSUFFICIENT FOR RETURNING THE IGNITION KEY TO THE RUNNING POSITION AFTER STARTING THE ENGINE, CONSUMER STATES THIS CAUSES ELECTRICAL ACCESSORIES SUCH AS THE WINDSHIELD WIPERS AND HEADLIGHTS TO”
— Owner report, NHTSA ODI #561871

Read all complaints on NHTSA →

Throttle sticking open in cold weather

VEHICLE SPEED CONTROL

8 NHTSA complaints · 2004-01 → 2010-02

“THROTTLE STICKING ON ACCELERATION IN SUB-ZERO DRIVING TEMPERATURES. BRAKES ENABLED ME TO STOP CAR AND SHUT OFF ENGINE. IF I TOOK MY FOOT OFF THE BRAKE, THE CAR RE-ACCELERATED TO THE STUCK POSITION”
— Owner report, NHTSA ODI #10054827
“IN EXTREME COLD WEATHER THROTTLE MAY UNEXPECTEDLY FAIL TO RETURN TO IDLE WHEN THE ACCELERATOR PEDAL IS RELEASED, MAKING IT VERY DIFFICULT TO STOP THE CAR. *AK”
— Owner report, NHTSA ODI #10091204
“MY AUDI A4 AVANT 2.8 QUATTRO 1998 ACCELERATES ON ITS OWN IN COLD TEMPERATURES ( BELOW 15 DEGREES F ) AND TWO DEALERSHIPS FAILED TO FIND THE PROBLEM SO FAR. IT HAPPENS WHEN THE ENGINE HAS WARMED UP PARTIALLY, BUT HAS NOT REACHED IT'S OPERATING TEMPERATURE YET. *JB”
— Owner report, NHTSA ODI #10062371

Read all complaints on NHTSA →

Heated seat overheating and burning

SEATS

5 NHTSA complaints · 2001-03 → 2006-08

“I TURNED MY HEATED SEAT ON IN MY AUDI A4. I FELT IT GETTING REALLY HOT IN ONE SPOT AND SMELLED SOMETHING BURNING. I GOT OUT AND LOOKED AT MY SEAT TO FIND A HOLE BURNT IN THE SEAT. I CONTACTED AUDI THEY TOLD ME TO BRING TO THE NEAREST SERVICE CENTER”
— Owner report, NHTSA ODI #10149996
“HEATED SEAT OVERHEATS. MELTS LEATHER. *JB”
— Owner report, NHTSA ODI #10147274
“HEATING ELEMENT FAILED, MELTING THE SEATING SURFACE AND BURNING THE DRIVER. *AK”
— Owner report, NHTSA ODI #742069

Read all complaints on NHTSA →

Source: NHTSA Office of Defects Investigation (ODI). Complaint data refreshed Sep 20, 2026. Investigation data refreshed Sep 20, 2026.

We display NHTSA's record with attribution; we don't editorialize on what these complaints mean for any specific vehicle.

Raw data + downloads for this vehicle →

Essential maintenance

Critical for safety and preventing major damage

Engine Oil & Filter (Longlife Service)

Every 10,000 mi

Replace oil and filter every 10,000 miles or 12 months with VW 502 00 / 504 00 / 508 00 spec oil. S and RS models driven hard: many owners shorten to 5,000-7,500 miles. Wrong-spec oil is the leading cause of TFSI timing-chain tensioner and PCV problems.

Estimated cost — typical U.S. ranges

Dealer

~$120–$160

Shop

~$85–$115

DIY

~$25–$55

Full synthetic costs more than conventional. 5-quart 0W-20 + filter is the typical bill.

Tire Rotation

Every 10,000 mi

Rotate every 10,000 miles with the oil service. quattro models: keep all four tires within 4/32" of each other — mismatched wear stresses the center differential.

Estimated cost — typical U.S. ranges

Dealer

~$85

Shop

~$60

DIY

Free

Often free at the shop where you bought the tires — worth asking before paying.

Brake Inspection

Every 10,000 mi

Inspect pads, rotors, and wear sensors every 10,000 miles. Audi uses electronic pad-wear sensors on most models — replace the sensor with the pads.

Estimated cost — typical U.S. ranges

Dealer

~$85

Shop

~$60

DIY

Free

Most shops do this free as a courtesy with any service. Don't pay separately if you can avoid it.

Brake Fluid

Every 24,000 mi

Replace DOT 4 brake fluid every 2 years regardless of mileage — Audi's published schedule is time-based because the fluid absorbs moisture.

Estimated cost — typical U.S. ranges

Dealer

~$180–$200

Shop

~$125–$140

DIY

~$10–$25

DOT 3 or 4 — match the cap. Vacuum bleeders make this a one-person DIY.

S tronic Dual-Clutch Fluid

Every 40,000 mi

S tronic (DSG) gearboxes on A3/S3/RS 3, Q3, TT, and many A5/Q5 models: replace fluid and filter every 40,000 miles with the VW Group-spec fluid for your gearbox code. Skipping this service is the most common cause of mechatronic failure.

Estimated cost — typical U.S. ranges

Dealer

~$470–$640

Shop

~$330–$450

DIY

Pro only

VW/Audi DSG service needs a fluid-fill procedure at a specific temperature — shop equipment territory.

Important maintenance

Keeps your vehicle running smoothly and efficiently

quattro Coupling Fluid (Transverse Models)

Every 40,000 mi

A3/S3/RS 3, Q3, and TT use a Haldex-style rear coupling: replace its fluid roughly every 40,000 miles (some model years specify sooner — check your manual). Longitudinal quattro (A5-A8, Q5, Q8) has no coupling service; see differential fluid instead.

Estimated cost — typical U.S. ranges

Dealer

~$220–$290

Shop

~$155–$205

DIY

~$40–$90

VW/Audi/Volvo AWD coupling — specific fluid required. Filter usually swapped at the same time.

Spark Plugs

Every 40,000 mi

TFSI turbo engines: new plugs every 40,000 miles. RS models with the 2.5 TFSI five-cylinder: consider 30,000 miles under track or hard street use.

Estimated cost — typical U.S. ranges

Dealer

~$285–$390

Shop

~$200–$275

DIY

~$25–$100

Iridium plugs cost more but last 100k+ miles. V6/V8 access varies wildly — some are tough.

Engine Air Filter

Every 40,000 mi

Replace every 40,000 miles; inspect at 20,000 on turbocharged engines — a clogged filter shows up as sluggish boost response first.

Estimated cost — typical U.S. ranges

Dealer

~$60–$95

Shop

~$45–$70

DIY

~$15–$40

5-minute job on most cars; the airbox lid usually has clips, no tools needed.

Timing Chain (EA888 — Inspect Tensioner)

On condition / lifetime

2.0 TFSI (EA888) engines before roughly 2013 had timing-chain tensioner failures — have the tensioner revision checked by 80,000 miles on earlier cars. Later engines carry the updated design with no scheduled service.

Estimated cost — typical U.S. ranges

Dealer

~$85

Shop

~$60

DIY

Pro only

Timing chains are normally lifetime. Listen for rattle on cold start — that's the actionable signal. Replacement is major work, quote separately.

Recommended maintenance

Extends the life of your vehicle and improves comfort

Differential Fluid (Longitudinal quattro)

Every 60,000 mi

Q5, Q8, and A5-A8 quattro: independent Audi specialists recommend front/rear differential fluid service around 60,000 miles even where Audi lists it as lifetime fill.

Estimated cost — typical U.S. ranges

Dealer

~$150–$195

Shop

~$105–$135

DIY

~$20–$50

Drain plug + fill plug — straightforward DIY. AWD vehicles have two; budget for both.

Dust & Pollen Filter

Every 20,000 mi

Replace the cabin air filter every 20,000 miles or 2 years. Audi specifies an activated-carbon filter on most models.

Estimated cost — typical U.S. ranges

Dealer

~$60–$95

Shop

~$45–$70

DIY

~$15–$40

Usually behind the glovebox. Shops charge labor for a 10-minute job — easy DIY win.

G12evo / G13 Coolant

On condition / lifetime

Audi coolant is labeled lifetime fill. Independent VW/Audi specialists recommend a refresh around 5 years or 100,000 miles to protect the water pump and thermostat housing — and only with the correct pink/lilac VW Group coolant.

Estimated cost — typical U.S. ranges

Dealer

~$285–$330

Shop

~$200–$235

DIY

~$25–$60

Use the manufacturer-specified coolant — wrong color/chemistry can damage the cooling system.

Fatal crash history & reported problems

Occupant deaths in fatal crashes (FARS)

41 crashes 1990–2024

How the 41 occupant deaths break down

25

driver deaths

16

passenger deaths

41

occupant deaths

Crash years covered: 1990–2024 This model year first appears in 1998 crashes. Older models have had more years on the road to appear in these crashes, so a higher count here does not by itself mean a vehicle is less safe.

FARS counts every occupant death in a fatal crash, whatever the cause — it does not mean the vehicle was at fault or defective. Counts are not adjusted for how many of each vehicle are on the road. How to read this number

FARS 2024 data is an annual report file. NHTSA revises these records when the final file is published, so this count can change.

Why we show driver deaths too

Every vehicle has exactly one driver seat, so driver deaths line up fairly when you compare one model to another. Occupant deaths include passengers, so a three row SUV can show a higher number than a two seat car simply because it carries more people.

Both figures are plain counts, not rates. A rate would need to know how many of each vehicle are on the road, and that registration data is not public, so we do not publish rates or scores of any kind.

IIHS publishes driver death rates using this same driver only idea, paired with a registered vehicle years denominator we do not have. Their rates and these counts answer different questions, so do not read either number here as a safety rating.

Owner-reported problem signals

Separate from the federal fatality data above: complaints owners filed with NHTSA about this year and model. These are reports of problems, unverified, and are counted here only as signals.

6

complaints mentioning a crash

2

complaints mentioning a fire

Reviewed known issues for this vehicle

Typical U.S. ranges. Actual quotes vary by shop, parts choice, and vehicle condition.

How we estimate: Dealer = OEM parts × 1.4 + labor × $165/hr. Shop = parts + labor × $115/hr. DIY = parts only.

This maintenance schedule for the 1998 Audi A4 reflects Audi's published service intervals and the Audi Service Interval Display system. Your actual service needs may vary based on driving conditions, climate, and vehicle usage. Always consult your owner's manual for model-specific recommendations.