Replacement Guide / Audi / A4 / 2002
Replacement guide
2002 Audi A4
Owner-reported component and symptom data for this model year.
What are you trying to fix?
Replacement-related components reported for this vehicle
50 owner reports involving the ignition coil
View replacement guide3 owner reports involving the timing belt
View replacement guide2 owner reports involving the water pump
View replacement guide1 owner report involving the battery
View replacement guide1 owner report involving the fuel injector
View replacement guide1 owner report involving the headlights
View replacement guide1 owner report involving the thermostat
View replacement guide1 owner report involving the oxygen sensor
View replacement guideBrowse by system
Fuel / engine
- Ignition Coil — 50 owner reports
- Timing Belt — 3 owner reports
- Fuel injector — 1 owner report
- Oxygen Sensor — 1 owner report
Cooling / HVAC
- Water Pump — 2 owner reports
- Thermostat — 1 owner report
About this data
Component evidence comes from structured complaint categories and reviewed component mentions in complaint summaries. Owner-situation evidence comes from reviewed symptom language in complaint summaries. Reports are signals, not diagnoses.
How to read the counts
Counts are distinct owner reports involving a canonical component. They are not a failure rate, probability, or share of vehicles sold. A complaint involving a component does not prove that component caused the problem. Parent NHTSA system buckets are not counted as the part itself.