Audi · Wagon · 2011–2018
Audi A6 C7 Avant
Weaknesses, engine ratings and buying advice
★★★★★
2.7 / 5.0 · Based on 21 engine variants Most Fun Engine
605 PS
4.0L TFSI V8 BiTurbo Benzin
560 hp super wagon — the RS6 everyone wants
Legendary! Most Reliable Engine
190–192 PS
1.8L TFSI Benzin
6 weaknesses
Good Choice Problem Engine
605 PS
4.0L TFSI V8 BiTurbo Benzin
10 weaknesses
Stay Away!Engine Overview
The Audi A6 C7 Avant is available with 11 engine variants — from 163 to 605 hp.
2.0L TDI Engine Change
2011 2014
Stay Away! 6 weaknesses
2014 2018
Be Careful 6 weaknesses
2014 2018
Be Careful 5 weaknesses
3.0L TDI V6 Engine Change
2011 2014
Be Careful 5 weaknesses
2011 2014
Be Careful 6 weaknesses
2011 2018
Stay Away! 5 weaknesses
2014 2018
Be Careful 5 weaknesses
2014 2018
Be Careful 5 weaknesses
3.0L TDI V6 BiTurbo
2011 2014
Stay Away! 6 weaknesses
1.8L TFSI
2014 2018
Good Choice 6 weaknesses
2.0L TFSI Engine Change
2011 2018
Be Careful 5 weaknesses
2014 2018
Be Careful 6 weaknesses
2015 2018
Be Careful 8 weaknesses
2.8L FSI V6
2011 2018
Be Careful 5 weaknesses
3.0L TFSI V6 Engine Change
2011 2014
Be Careful 8 weaknesses
2011 2014
Be Careful 7 weaknesses
2014 2018
Be Careful 7 weaknesses
RS6 Avant
2013 2018
Be Careful 10 weaknesses
RS6 Avant Performance
2015 2018
Stay Away! 10 weaknesses
S6
2012 2018
Be Careful 5 weaknesses
S6 Avant
2012 2018
Be Careful 10 weaknesses
Vehicle Weaknesses
| Weakness | Cost | |
|---|---|---|
| AAS Air Suspension Failure The optional air suspension (AAS) is prone to failure through porous air bellows and defective compressors. Repair costs of 600–1,800 EUR per corner are possible. Symptoms: Vehicle hangs low on one side, 'Suspension: Fault' warning in instrument cluster, rough ride from 80,000 km | Medium | |
| Wheel Bearings Wearing Prematurely Wheel bearings, particularly at the rear axle, show increased wear at higher mileages. Regularly flagged on vehicles from 80,000 km. Symptoms: Humming or droning at constant speed, noise changes when changing lanes from 85,000 km | Medium | |
| Engine Mounts Prematurely Worn On V6 and V8 engines, engine mounts often wear from around 50,000 km, causing noticeable vibrations. Symptoms: Vibrations in cabin at idle, droning when accelerating, noticeable engine roughness from 60,000 km | Medium |
Frequently Asked Questions
What problems and weaknesses does the Audi A6 C7 Avant have? +
The Audi A6 C7 as Avant has 145 known weaknesses, 9 vehicle-related.
Which engine is recommended? +
Good Choice: CYJA (1.8L TFSI).
Is the Audi A6 C7 Avant worth buying used? +
Caution is advised with the Audi A6 C7 Avant — 4 of 21 engine variants are rated 'Stay Away!'.
Last updated: February 2026 · All information without guarantee