Is the 2015 Audi A6 reliable?

The 2015 Audi A6 has 28 complaints filed with NHTSA (1.0x the segment average). Our reliability verdict: average. Most common issue: ENGINE problems.

What are common problems with the 2015 Audi A6?

Top problems: ENGINE (11 complaints, avg repair $500); AIR BAGS (3 complaints, avg repair $500); ELECTRICAL (3 complaints, avg repair $500). Issues typically appear around 50K miles.

Are there any recalls on the 2015 Audi A6?

Yes, there are 4 recall(s): ENGINE AND ENGINE COOLING:COOLING SYSTEM, ELECTRICAL SYSTEM:WIRING, AIR BAGS:SENSOR:OCCUPANT CLASSIFICATION, ENGINE AND ENGINE COOLING:COOLING SYSTEM. Contact any Audi dealer to verify if recalls have been completed on your specific vehicle.

How much does it cost to fuel a 2015 Audi A6?

The 2015 Audi A6 gets 28 MPG combined. At current US average gas prices, driving 12,000 miles per year costs roughly $1714. See the interactive fuel cost calculator on this page for state-specific pricing.

How much does it cost to insure a 2015 Audi A6?

Estimated US average full-coverage insurance for the 2015 Audi A6 is approximately $1,853/year (sedan-luxury class). Actual quotes vary heavily by state, driver age, driving record, and credit — see the interactive insurance estimator on this page for state-specific pricing.

2015 Audi A6

Problems, Recalls & Reliability Report

Average

Quick Summary

The 2015 Audi A6 has 28 owner complaints filed with NHTSA — that's 1.0x the segment average of 28. The most common issue is engine problems (39% of all complaints), specifically: tl* the contact owns a 2015 audi a6. the contact received notification of nhtsa campaign number: 18v229000 (engine and engine cooling); however, the parts to do the repair were unavailable. the contact stated that the manufacturer exceeded a reasonable amount of time for the recall repair. the conta. There are 4 recalls issued for this model year.

1 crash report

Total Complaints

Recalls Issued

5/5

Safety Stars

1.0x

vs Segment Avg

Known Problems(top 5 of 8)

ENGINE

11 complaints

39%

• TL* THE CONTACT OWNS A 2015 AUDI A6. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 18V229000 (ENGINE AND ENGINE COOLING); HOWEVER, THE PARTS TO DO THE REPAIR WERE UNAVAILABLE. THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. THE CONTA
• TL* THE CONTACT OWNS A 2015 AUDI A6. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 18V229000 (ENGINE AND ENGINE COOLING); HOWEVER, THE PARTS TO DO THE REPAIR WERE UNAVAILABLE. THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. THE CONTA
• I'M EXTREMELY FRUSTRATED AND DISAPPOINTED IN OUR CHECK AND BALANCES WITH AUDI AND THESE SAFETY RECALLS. I OWN A 2015 AUDI A6, BACK IN JUNE I FOUND THAT THERE ARE TWO SAFETY RECALLS WITH THE FRONT AIRBAGS THAT HAVE KILLED 20 AND INJURED OVER 100 PEOPLE. I'VE DONE A LOT OF RESEARCH. THE AIRBAGS ARE MO

Typical onset: 50K miles Est. repair: $500

“TL* THE CONTACT OWNS A 2015 AUDI A6. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 18V229000 (ENGINE AND ENGINE COOLING); HOWEVER, THE PARTS TO DO THE REPAIR WERE UNAVAILABLE. THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. THE CONTA”

— NHTSA complaint filing

When Problems Appear on the 2015 Audi A6

Based on 16 owner complaints that included an odometer reading. Median mileage at time of complaint: 62K miles. Most complaints cluster in the 60-100K miles range.

Overall complaint distribution by mileage

0-30K

30-60K

60-100K

100-150K

150-200K

200K+

ENGINE

In line with typicalmedian 76K mi · 6 reports

0-30K

30-60K

60-100K

100-150K

150-200K

200K+

Mileage figures are self-reported by owners in NHTSA complaint filings. Peak bucket = the mileage range with the most complaints for that component; it reflects when owners noticed and reported problems, not necessarily when the fault first occurred.

Recalls (4)

ENGINE AND ENGINE COOLING:COOLING SYSTEM11/04/2018

Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2013-2017 Audi A5 Cabriolet, A5 Sedan and Audi Q5 vehicles, 2012-2015 Audi A6 vehicles and 2013-2016 Audi A4 Sedan and A4 allroad vehicles. These vehicles, equipped with 2.0l Turbo FSI engines, have an electric coolant pump that can either become blocked with debris from the cooling system causing it to overheat or can short-circuit from moisture within the pump.

Risk: A blocked pump or a short-circuited pump can increase the risk of a fire.

Fix: Audi will notify owners, and dealers will replace the pumps, free of charge. The recall began September 14, 2018. Owners may contact Audi customer service at 1-800-253-2834. Audi's number's for this recall is 19N3/19N4. Note: This recall is in additional to the coolant pump software update applied as a remedy under recall 17V002.

Fuel Cost Calculator for 2015 Audi A6

Live EIA prices

Annual miles driven: 12,000

Your state (affects local gasoline price)

Per year

$1,715

Per month

$143

Per mile

14.3¢

MPG

City driving (worst-case MPG)

$1,920/yr

Highway driving (best-case MPG)

$1,455/yr

Based on EPA fuel-economy ratings and EIA weekly retail prices (2026-07-20). Real-world cost varies with driving style, trim/engine, terrain, and traffic.

5-Year Gas Price History

EIA weekly retail data · 2021 → today

Show:

Current

$4.00

5-year low

$2.78

5-year high

$5.01

Since 2021

+27%

Source: US Energy Information Administration weekly retail gasoline prices.

Estimated Insurance Cost for 2015 Audi A6

Estimate only, not a quote. Modeled from NAIC + HLDI averages for a hypothetical 35-year-old driver with clean record + full coverage. Your actual quote depends heavily on your age, driving history, credit, ZIP code, and insurer.

Your state (affects local premium average)

Full coverage / year

$1,853

Full coverage / month

$154

Liability only / year

$668

vs US avg

+11%

How this estimate is calculated

US base full-coverage premium$1674

× state (US)1.00x

× vehicle class (sedan-luxury)1.28x

× theft risk1.00x

× safety rating0.94x

× vehicle age0.92x

= Full coverage estimate$1853

Coverage assumed: 100/300/100 liability + comprehensive/collision, $500 deductibles. Data sources: NAIC 2024 + HLDI loss studies.

Maintenance & Warranty

Recommended Audi A6 Service Intervals

Oil change

10K mi / 12 mo

Tire rotation

10K mi

Brake fluid

24 months

Transmission fluid

40K mi

Engine coolant

100K mi

Spark plugs

60K mi

Cabin air filter

20K mi

Engine air filter

40K mi

Differential (AWD/4WD)

40K mi

Long-interval service (LongLife) uses fully-synthetic oil. Some engines have timing belts (check owner's manual).

"Severe service" conditions (heavy towing, extreme temps, city stop-and-go) typically halve these intervals. Always consult your vehicle's owner's manual for the authoritative schedule.

Audi New-Vehicle Warranty Coverage

Bumper-to-bumper (basic)

4 yr / 50K mi

Powertrain

4 yr / 50K mi

Hybrid/EV battery

8 yr / 100K mi

Corrosion (rust perforation)

12 yr / unlimited mi

Roadside assistance

4 yr / unlimited mi

Corrosion coverage is unlimited miles for 12 years

These are the terms for a new Audi. If you're buying a used 2015 A6, remaining coverage is usually pro-rated from the vehicle's original in-service date. Not all coverage transfers between owners — check with a Audi dealer for VIN-specific remaining warranty.

Estimated Repair Costs

ENGINE(~50K mi)

$500

AIR BAGS(~50K mi)

$500

ELECTRICAL(~50K mi)

$500

BRAKES(~50K mi)

$500

STEERING(~50K mi)

$500

Estimates based on average reported repair costs. Actual costs vary by location, shop, and severity.

🔍 Pre-Purchase Inspection Checklist

Based on 28 owner complaints for this specific year, here's what to check or ask about:

☐
ENGINE: TL* THE CONTACT OWNS A 2015 AUDI A6. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 18V229000 (ENGINE AND ENGINE COOLING); HOWEVER, THE PARTS TO DO THE REPAIR WERE UNAVAILABLE. THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. THE CONTA
Typically appears around 50K miles. Repair cost ~$500
☐
AIR BAGS: RECEIVED A LETTER FROM AUDI OF AMERICA DATED MARCH 2017 CALLED DEALER IN BLOOMFIELD IN MICHIGAN LAVERY AUDI REPORTED THIS LETTER BUT UP NOW SEPTEMBER 19, 2017 HAVE NOT HARD FROM THEM. HOW LONG SHOULD I WAIT UNTIL THIS PROBLEM RESOLVED.
Typically appears around 50K miles. Repair cost ~$500
☐
ELECTRICAL: IM AN ACTIVE DUTY MILITARY SERVICE MEMBER STATIONED OVERSEAS IN SOUTH KOREA. I CURRENTLY OWN A 2015 AUDI A6. I WAS RECENTLY NOTIFIED THAT MY VEHICLE HAD 2 RECALLS PLACED, SPECIFICALLY ON THE ELECTRIC COOLANT PUMP AND ON THE PASSENGER OCCUPANT DETECTION SYSTEM (PODS). I VISITED MY LOCAL AUDI DEALERSH
Typically appears around 50K miles. Repair cost ~$500
☐
BRAKES: AUDI BRAKE GUARD ACTIVATED SPONTANEOUSLY BECAUSE THE CAR SENSED AN IMPENDING IMPACT WITH A VEHICLE IN FRONT OF ME. HOWEVER, THERE WAS NO VEHICLE IN FRONT OF ME, BUT THE BRAKE GUARD APPLIED STRONG BRAKING ACTION ON AN OPEN ROAD, BRINGING ME TO AN IMMEDIATE STOP. HAD THERE BEEN A CAR BEHIND ME, IT W
Typically appears around 50K miles. Repair cost ~$500
☐
RECALLS: Verify all 4 recalls have been completed — free at any Audi dealer
☐
General: Get a pre-purchase inspection from an independent mechanic ($100-$200)