2018 · 40 TDI quattro S tronic · 4 verified findings
"Is the A6 40 TDI quattro S tronic reliable, and what should you check?"
The most frequently mentioned issue when buying a used 2018 Audi A6 2.0 TFSI (C7 facelift): Ignition coils prone to failure. Also, timing chain slack or failure is commonly reported.
Engines available in this year
Engine varies by trim; verify the engine code on the listing.
DESA,DETA
40 TDI quattro S tronic · 40 TDI (190 bg) quattro S tronic
DFBA
40 TDI quattro S tronic · 40 TDI (204 bg) quattro S tronic
EA288/DFHA
40 TDI quattro S tronic · 40 TDI (190 bg) quattro S tronic
Known issues and risks
Listed from most frequently reported, each with its source.
Ignition coils prone to failure
Often reported
Users and service centers report recurring ignition coil failures on EA888 TFSI engines; this causes misfires, rough idle, and check engine light illumination.
Engine Bay
Timing chain slack or failure
Often reported
Some EA888 engines (including Gen3 versions in the A6 facelift) have reported timing chain slack or tensioner/guide failures.
Timing chain
Same trim, different year
2018
Frequently asked questions
What to look for when buying an Audi A6 2.0 TFSI?+
When buying a 2018 model 2.0 TFSI, check service history, test drive, and look for engine/transmission warnings. Most commonly reported issues: Ignition coils prone to failure; timing chain slack or failure.
What are the common problems of the Audi A6 2.0 TFSI?+
Most commonly reported issues: Ignition coils prone to failure; timing chain slack or failure.
Is the Audi A6 2.0 TFSI reliable?+
Rather than a simple yes/no, it's best to weigh the proven pros and cons together. This page lists 2 verified findings.
How does Carbeak collect data?+
The cards on this page are derived from European fault records records; brand, fuel, engine, and generation compatibility between the source vehicle and target vehicle is verified. Topics with insufficient evidence are not shown.
We only publish claims we can verify. Cards come from European fault records and owner reports matched to this vehicle on brand, fuel, engine and generation.
Looking at another car?
Pick make, model and year — see the report in about 30 seconds.