The Used Car Index

2020 Audi A4 problems

NHTSA lists 127 complaints for the 2020 Audi A4, 1 of them mention a crash and 0 mention a fire. 0 complaints mention an injury, with 0 injuries and 0 deaths reported.

Data build 2026-10-07.

NHTSA lists this vehicle as AUDI A4.

At a glance

Complaints
127
With crash
1
With fire
0
With injury (complaints)
0
Injuries
0
Deaths
0
Recalls
3
Do not drive recalls
0
Park outside recalls
0
Recall potential units (maximum)
208,332
Investigations
0
Open investigations
0
Manufacturer communications
1,073

Complaints per 100k sold unavailable. No sales source is available for this record.

Where the complaints are

Top systems
SystemComplaintsShare of this vehicle's complaints
ELECTRICAL SYSTEM9171.7%
UNKNOWN OR OTHER5845.7%
BACK OVER PREVENTION4333.9%
FORWARD COLLISION AVOIDANCE97.1%
LANE DEPARTURE64.7%
COMMUNICATION21.6%
SUSPENSION21.6%
EXTERIOR LIGHTING10.8%
SEATS10.8%
SERVICE BRAKES10.8%
Top subsystems
SystemSubsystemComplaints
BACK OVER PREVENTIONWARNINGS36
BACK OVER PREVENTIONREARVIEW SYSTEM BRAKING21
FORWARD COLLISION AVOIDANCEWARNINGS6
LANE DEPARTUREBLIND SPOT DETECTION5
FORWARD COLLISION AVOIDANCEAUTOMATIC EMERGENCY BRAKING2
COMMUNICATIONMANUFACTURER TELEMATICS1
FORWARD COLLISION AVOIDANCEADAPTIVE CRUISE CONTROL1
LANE DEPARTUREWARNING1

One complaint can name several systems, so shares can add to more than 100 percent.

Model-generated complaint tags

These labels are model-generated, not NHTSA data.

Failure modes
LabelCountShare of taggedMean confidence
electrical electronic12396.9%0.98
mechanical failure21.6%0.79
restraint or airbag10.8%0.50
visibility or lighting10.8%0.50
Severities
LabelCountShare of taggedMean confidence
moderate10885.0%0.93
low1814.2%0.71
high10.8%1.00

Model: typesafe/jev-1.13-20260917; schema version: tag-v1. 127 tagged complaints of 127 complaints (100.0%).

Confidence is the model's own probability for the label it chose (0 to 1), not accuracy.

Model-generated labels on tagged complaints only. Model years 2013 and newer are tagged in full; 2012 in part (see tagged_share); earlier model years have no tags. NHTSA's own flags remain separate in the complaints block.

Recalls

3 recalls.

22V034000

Date: 2022-01-26. Systems: SUSPENSION, TIRES.

Defect: Volkswagen Group of America, Inc. (Audi) is recalling certain 2019-2021 Audi A5 Sportback, RS5 Coupe, RS5 Sportback, S5 Sportback, 2020-2021 A4 Allroad, A4 Sedan, A5 Cabriolet, A5 Coupe, A6 Allroad, A6 Sedan, A7, A8, Q5, S4 Sedan, S5 Coupe, S5 Cabriolet, S6 Sedan, S7, S8, SQ5, 2021 Q5 Sportback, Q7, Q8, RS6 Avant, RS7, RSQ8, SQ5 Sportback, SQ7, and SQ8 vehicles. The rear axle alignment may not ha (excerpt)

Consequence: Rear axle misalignment may cause premature or uneven tire wear, increasing the risk of a crash. (excerpt)

Remedy: Dealers will inspect the rear axle, adjust the alignment as necessary, and replace any prematurely or unevenly worn tires, free of charge. Owner notification letters were mailed March 3, 2022. Owners may contact Audi customer service at 1-800-253-2834. Audi's number for this recall is 42L5. (excerpt)

Do not drive: No. Park outside: No.

21V874000

Date: 2021-11-10. Systems: AIR BAGS, SEATS.

Defect: Volkswagen Group of America, Inc. (Audi) is recalling certain 2017-2020 A4 Allroad, A4 Sedan, 2018-2019 RS5 Coupe, 2019 RS5 Sportback, 2018-2020 A5 Cabriolet, A5 Coupe, A5 Sportback, S4 Sedan, S5 Cabriolet, S5 Coupe, and Audi S5 Sportback vehicles. The cable connecting the seat heater to the Passenger Occupant Detection System (PODS) may have a contact fault, causing the software to misdiagnose a (excerpt)

Consequence: A disabled passenger air bag increases the risk of injury in the event of a crash. (excerpt)

Remedy: Dealers will replace the connecting cable and either the heating mat or entire seat cover, free of charge. Owner notification letters were mailed January 7, 2022. Owners may contact Audi customer service at 1-800-253-2834. Audi's number for this recall is 74E3. This recall is an expansion of Recall 19V-547 (74D9). Vehicles previously repaired under 19V-547 will need to return for the new reme (excerpt)

Do not drive: No. Park outside: No.

21V295000

Date: 2021-04-26. Systems: SUSPENSION.

Defect: Volkswagen Group of America, Inc. (Audi) is recalling certain 2021 Q7, Q8, Q5 Sportback, SQ5 Sportback, RS6 Avant, RS7, RS Q8, 2020-2021 Audi S6 sedan, Q5, A8, S8, A7, A6 Allroad, A5 Cabriolet, A4 sedan, A4 Allroad, SQ5, S7, A6 sedan, S5 coupe, S4 sedan, S5 Cabriolet, A5 coupe, 2019-2021 RS5 coupe, A5 Sportback, S5 Sportback, RS5 Sportback vehicles. The lock nut on the trailing arm of the rear ax (excerpt)

Consequence: A broken lock nut may misalign the rear axle, causing a loss of control and increasing the risk of a crash. (excerpt)

Remedy: Dealers will replace the lock nuts and, if necessary, the associated bolts, free of charge. Owner notification letters were mailed June 4, 2021. Owners may contact Audi customer service at 1-800-253-2834. Audi's number for this recall is 42L1. (excerpt)

Do not drive: No. Park outside: No.

Investigations

0 investigations; 0 open.

Manufacturer communications

1,073 manufacturer communications.

Communications by system
SystemCount
ELECTRICAL SYSTEM338
EQUIPMENT284
UNKNOWN OR OTHER117
STRUCTURE90
STEERING56
SUSPENSION48
POWER TRAIN47
ENGINE AND ENGINE COOLING42

11038027

Date: 2026-09-25. Type: Service Bulletin/Repair Instructions. Systems: UNKNOWN OR OTHER.

This bulletin provides information for reporting safety related information to the manufacturer.

11038129

Date: 2026-09-25. Type: Service Bulletin/Repair Instructions. Systems: ENGINE.

This bulletin provides information when the starter/generator drive belt is noisy or came off.

11038130

Date: 2026-09-25. Type: Service Bulletin/Repair Instructions. Systems: UNKNOWN OR OTHER.

This bulletin states that technicians are required to report to the manufacturer when a vehicle has flooded, and specify the height to which the vehicle has been flooded.

11038024

Date: 2026-09-22. Type: Service Bulletin/Repair Instructions. Systems: VISIBILITY/WIPER.

This bulletin provides service information regarding exterior glass cleaning.

11038031

Date: 2026-09-22. Type: Service Bulletin/Repair Instructions. Systems: STEERING.

This bulletin provides informaiton when DTC B200FF0 is stored.

11038042

Date: 2026-09-22. Type: Service Bulletin/Repair Instructions. Systems: STEERING.

This bulletin provides information about vibrations and rotational steering vibrations.

11038032

Date: 2026-09-18. Type: Service Bulletin/Repair Instructions. Systems: ELECTRICAL SYSTEM.

This bulletin provides information when the rear parking sensor sometimes does not work, rear parking sensor loose, rear parking sensor fault message.

11038056

Date: 2026-09-18. Type: Service Bulletin/Repair Instructions. Systems: STRUCTURE.

This bulletin provides information about billing for a broken sunroof glass panel.

11038025

Date: 2026-09-15. Type: Service Bulletin/Repair Instructions. Systems: UNKNOWN OR OTHER.

This bulletin provides information when the license plate mounting bracket threded inserts are stripped.

11038033

Date: 2026-09-08. Type: Service Bulletin/Repair Instructions. Systems: STRUCTURE.

This TSB describes a corrosion issue due to outside influence and the prohibition of warranty in these cases.

Notes on this record

  • Complaints from the API and bulk file are merged and deduplicated by ODI number; the API alone misses records.
  • System and subsystem counts are numbers of distinct complaints, recalls or communications that name them. One record can name several systems, so shares across systems can add to more than 100 percent; a single share never exceeds 100 percent.
  • Recalls are counted once per campaign, investigations once per action and manufacturer communications once per NHTSA id, even when NHTSA lists several model names for the same record.
  • A sales denominator is a calendar-year proxy, not the population of vehicles still in use. Rates are copied from verified pipeline output.

Other names NHTSA uses

None listed.

Matched NHTSA models

Matched labels and complaints
NHTSA model labelComplaints
A4127

Same model, other years

All model years | All Audi models

Other Audi models, 2020

Sources

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