2020 Audi A4

The Verdict

Worst problem area

Electrical

Electrical leads by volume: 92 of 127 complaints (72%) mention it. Complaints mentioning Suspension, Wheels & Tires include more crash reports (1) than those mentioning any other identified area.

Complaints filed rose from 10 in 2019 to 127 in 2020.

Data last changed Sep 16, 2026. Sources: NHTSA complaints and recalls, EPA fuel economy data. Methodology

Cost, Fuel Economy & Complaint History

Fuel cost, fuel economy, and complaint history by model-yearScroll sideways to see all 5 years. Fuel figures show the range across trims for years with more than one EPA-rated configuration.Also cataloged for 2020: 1 configuration(s) of a different vehicle class, excluded from the comparison bar only (but included in the figures above).
Category	2018	2019	2020	2021	2022	vs. 2020 Compact Cars
Annual fuel cost ($)	2,500–2,850	2,600–3,100	2,600–3,000	2,750–3,000	2,650–3,000
Combined MPG	27–31	25–30	26–30	26–28	26–29
City / Highway MPG	24–27 / 33–37	22–27 / 29–34	23–27 / 31–35	24–25 / 30–34	24–26 / 30–34
CO₂ tailpipe (g/mi)	284–327	292–356	295–337	311–335	307–335
Complaints filed	44	10	127	11	6	Not compared
Recalls issued	1	1	3	4	3	Not compared
Crash-involved complaints	1	2	1	3	0	Not compared
Fire-involved complaints	0	0	0	0	0	Not compared
Injuries reported	0	2	0	1	0	Not compared
Deaths reported	0	0	0	0	0	Not compared
Configurations compared	3	2	2	2	2

Common questions

How many recalls does the 2020 Audi A4 have?

3 NHTSA recall campaigns as of Sep 16, 2026. Check your VIN with NHTSA to see whether one applies to your car.

What is the most common complaint about the 2020 Audi A4?

Electrical: 92 of 127 NHTSA complaints (72%) mention it.

What gas mileage does the 2020 Audi A4 get?

EPA rates it 26–30 MPG combined.

How much does it cost to fuel a 2020 Audi A4?

EPA estimates $2,600–$3,000 a year in fuel costs, using EPA's assumptions.

Similar Vehicles

EPA-Rated Configurations (3)

Every EPA-rated configuration on this page, one row each.A number tagged (low) or (high) is this page’s own cost-table figure of that name, above.
Configuration	Transmission	Cylinders	Displacement	Drivetrain	Fuel Type	Vehicle Class	City	Highway	Combined	Annual Fuel Cost	CO₂
Configuration 1	Automatic (AM-S7)	4	2.0L	Front-Wheel Drive	Premium	Compact Cars	27 mpg (high)	35 mpg (high)	30 mpg (high)	$2,600 (low)	295 g/mi (low)
Configuration 2	Automatic (AM-S7)	4	2.0L	All-Wheel Drive	Premium	Compact Cars	24 mpg	32 mpg	27 mpg	$2,850	329 g/mi
Configuration 3	Automatic (AM-S7)	4	2.0L	All-Wheel Drive	Premium	Small Station Wagons	23 mpg (low)	31 mpg (low)	26 mpg (low)	$3,000 (high)	337 g/mi (high)

Complaints by Category

Complaints by category, in the same fixed order on every page
Category	Complaints	Crash-Involved
Engine	0	0
Transmission & Drivetrain	0	0
Fuel System	0	0
Electrical	92	0
Brakes	1	0
Steering	0	0
Suspension, Wheels & Tires	2	1
Airbags & Restraints	0	0
Driver Assistance & Speed Control	49	0
Body, Seats & Latches	1	0
Visibility & Lighting	2	0
Other	58	0

A complaint that names more than one category is counted in each, so the rows can add up to more than the total number of complaints.

Recalls (3)

SUSPENSION:REAR:AXLE:NON-POWERED AXLE ASSEMBLY; TIRES · Campaign 22V034000 · Jan 27, 2022
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 have been inspected after the repairs for Recall 21V-295 (42L1) were performed.
Consequence: Rear axle misalignment may cause premature or uneven tire wear, increasing the risk of a crash.
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.
SEATS; AIR BAGS:SENSOR:OCCUPANT CLASSIFICATION:FRONT PASSENGER · Campaign 21V874000 · Nov 12, 2021
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 malfunction and disable the passenger air bag.
Consequence: A disabled passenger air bag increases the risk of injury in the event of a crash.
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 remedy.
SUSPENSION:REAR:AXLE:NON-POWERED AXLE ASSEMBLY · Campaign 21V295000 · Apr 27, 2021
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 axle may break due to stress corrosion.
Consequence: A broken lock nut may misalign the rear axle, causing a loss of control and increasing the risk of a crash.
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.