1998 audi a4 quattro

The ABS controller has failed (the two lights and the beeps are the telltale). Replace it or have it rebuilt at www.modulemaster.com.

Check & replace if necessary the brake pedal switch placed above pedals on the support.
If the problem still occurs you might access the ABS ECU (Electronic Control Unit) using diagnostic equipment connected to the data link connector of the car, in order to pull out all DTC (Diagnostic Trouble Codes) memored.
Then you will be able to replace bad piece(s) and fix the problem by erasing all DTC stocked inside ABS ECU & reset it.

The serpentine belt routing diagram for 1998 Audi A4 Quattro 2.8 liters V6 engine:



CS = Crankshaft
F = Fan pulley
Gen = Alternator
T = Tensioner pulley
AC = Air Conditioning
PAS = Power Assisted Steering

If the Airbag light is on, it indicates that a electronic fault is stored in the memory for the airbag. You will need to have a diagnostic check done to pinpoint what the fault is, have it sorted out and only then can the fault be cleared so the light will go off. The ABS light also indicates a fault on the electronic side of the braking system. If the light comes on as you start the vehicle this indicates that there is an open circuit in the wiring or that the ABS control unit itself is faulty. If the light only comes on once the vehicle is in motion, this indicates that a wheel speed sender is incorrectly fitted or dirty and not sensing the ABS Rotor on one of the wheels. If a CV joint has been replaced, the joint may not have an ABS ring fitted on it.[front] At the rear the ABS pick up is fitted on the inside of the brake discs and must be fitted to the new disc when replacing discs.

Fuses: Fuse arrangement in fuse panel, behind instrument cluster, left
Fuse Arrangement In Fuse Panel

1 - Heated washer jets 5A 2 - Turn signals 10A 3 - Headlight washer (relay), illumination for glove
compartment, climate control, Automatic Transmission, instrument cluster 5A 4 - License plate light 5A 5 - Instrument cluster, seat heating, test connection
for cruise control, bulb monitor for auto-check display, Automatic Transmission display, switch
lighting, mirror switches and actuators, airbag
warning light, outside temperature indicator,
climate control 10A 6 - Central locking system 5A 7 - Anti-lock brake system (ABS) 10A 8 - Vacant 9 - Mirror heating 10A 10 - Vacant 11 - Cruise control (Automatic Transmission) 5A 12 - On board diagnostic system 10A 13 - Brake lights 10A 14 - Interior lights, reading lights, anti-theft alarm system, vanity mirror 10A 15 - Instrument cluster, power windows, climate control, automatic transmission 10A 16 - Anti-lock brake system (ABS), Anti-Slip Regulation (ASR) 5A 17 - Heated door locks 10A 18 - High-beam, right 10A 19 - High-beam, left 10A 20 - Low-beam, right 15A 21 - Low-beam, left 15A 22 - Side marker and tail light, right 5A 23 - Side marker and tail light, left 5A 24 - Wiper and washer system 25A 25 - Blower for heating, climate control 30A 26 - Rear window defogger, mirror heating 30A 27 - Rear window wiper 15A 28 - Fuel Pump 15A 29 - Engine timing 30A 30 - Sun roof 20A 31 - Tail lights, cruise control, automatic transmission 15A 32 - Engine timing 20A 33 - Cigarette lighter 15A 34 - Engine timing 15A 35 - Trailer recptacle 30A 36 - Fog lights 15A 37 - Radio 20A 38 - Luggage compartment light, central locking system 15A 39 - Emergency flasher system 15A 40 - Horn 25A 41 - Anti-lock brake system (ABS) 25A 42 - Vacant 43 - Vacant

Hi Secondorama,

I having the same light in my car? Did you figure out what this light mean?

Help,

Thanks

sounds like your brakes need bleeding and the abs sensor adjusting

have your rotors machined or replaced if there isn't room to cut them

These lights mean the ABS system has been shut off due to a fault, the brakes will fell fine but the ABS is not going to work if you need it until you fix the fault.

I have taken the brake caliper of the rear passenger side and renewed the seals in it i have also renewed the brake pads in that wheel i have tried to bleed it before renewing the pads in the outherside but when i open the bleed nipple and push the peddle down there is no braked fluid coming out i also renewed the nipple.When you take the brake pipe off the caliper ther is still no fluid coming out also there is no pressure on the pedal 1997 audi a4 1800