1998 Audi A4 Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 1998 Audi A4

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1998 Audi A4 Problems

Engine Misfire Due to Failed Ignition Coil, Spark Plug, or Ignition Wire

An ignition coil or spark plug may fail unexpectedly resulting in an engine misfire and possible illumination of the Check Engine Light. Vehicles equipped with spark plug wires may also develop a misfire caused by a failed spark plug wire.

No Start after Refueling and Popping Noise from Trunk

Popping sounds from the rear of the vehicle may be heard moments after starting the engine, or when slowing to a stop. This noise is from the leak detection pump filling the fuel tank with air, and releasing to retest the system when it finds a fault. The sequence of faults identifying this issue are as follows:

  • Succession of loud pops from rear of vehicle
  • Pops go away, and fuel economy decreases 
  • Check engine light illuminates
  • OBD trouble code P2404 and/or P0441 is stored
  • Engine will not start after refueling (must crank for over 30 seconds)
  • Vibration when slowing to a stop

The cause is a valve which is mounted on the front of the intake manifold, commonly called the N80 valve, or EVAP system purge valve. The valve is designed to open under specific circumstances, but a worn valve will remain open at all times, preventing the pressurization of the fuel tank. 

Correction of the issue is to replace the N80 valve with the latest revision. 

ABS Light Due to Control Module Failure

The anti-lock brake system (ABS) control module may fail causing the ABS light to illuminate. Failed modules should be replaced to restore ABS operation.

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1998 Audi A4 Questions

Enging spudders and back fires at WOT. (1 answer)

My 98 has a big turbo kit and sometimes it spudders or hick ups when accelerating/shifting. It also pops/back fires when shifting under load. Why would it start this now? Never had these issues when first bought the car?

going into gear but is not catching the gear enabling it to move. (1 answer)

My car was stolen 9 days ago, it was found 300 miles from home and is disabled according to the impound lot, they have said that it's able to go into gear But does not seem to be "catching" the gear after it is put in not enabling the car to be moved. What could be causing this prob...

Put in drive car surges. Never cuts off just surges. (2 answers)

Car will not go over 20. Car sat for a month and had to be jumped. Never surged until then.

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1998 Audi A4 Recalls

Recall 99V131001
VEHICLE DESCRIPTION: PASSENGER VEHICLES EQUIPPED WITH AUTOMATIC TRANSMISSIONS. A CONTROL VALVE IN THE VACUUM HOSE CONNECTING THE BRAKE BOOSTER TO THE INTAKE MANIFOLD MAY NOT OPEN OR CLOSE FULLY AT TEMPERATURES BELOW -4 F UNDER CERTAIN DRIVING CONDITIONS.
Recall 99V248000
VEHICLE DESCRIPTION: PASSENGER VEHICLES. THE TIE RODS OF THE STEERING ASSEMBLY ARE PROTECTED ON EACH SIDE BY A SEAL TO PREVENT MOISTURE AND DUST PARTICLES FROM ENTERING THE SWIVEL BEARING MECHANISM. IT IS POSSIBLE THAT SOME TIE ROD SEALS MAY NOT SEAL PROPERLY.
Recall 98V134000
VEHICLE DESCRIPTION: PASSENGER VEHICLES. IF THE ENGINE BACKFIRES DURING A COLD-START, AN AIR SCREEN WHICH IS LOOSELY SEATED IN THE AIR FLOW METER CAN BECOME DAMAGED.

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1998 Audi A4 Reviews

Rated
based on 1 customer reviews
It's a beautiful car that when it works, works verry well. Unfortunatley when it doesn't, it's not the easiest to get fixed... A great car for someone with money to fix it.

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