AI Damage2018 Audi A6: common problems
Owners of the 2018 Audi A6 filed 2 complaints with NHTSA, most often about electrical system and fuel/propulsion system. The maker issued 601 service bulletins for this year. Details by component below, with sources.
Key figures
- Owner complaints
- 2
- Technical service bulletins (TSB)
- 601
What fails most often
- 1 Electrical system 50% of all complaints
- 2 Fuel/propulsion system 50% of all complaints
- 3 Air bags 50% of all complaints
- Electrical system: 1 complaints (50% of all); manufacturer bulletins for this component: 136.
- Fuel/propulsion system: 1 complaints (50% of all); manufacturer bulletins for this component: 8.
- Air bags: 1 complaints (50% of all); manufacturer bulletins for this component: 6.
Engines and transmissions
US-market versions per EPA. On the right: how many NHTSA complaints name this engine or transmission type.
- 2 L · petrol · turbo · 4 cyl
- 3 L · petrol · turbo · 6 cyl
- automatic, 8-speed
- dual-clutch (DCT), 7-speed
Drive: AWD, FWD
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Electrical system | 1 | 0 | 136 |
| Fuel/propulsion system | 1 | 0 | 8 |
| Air bags | 1 | 0 | 6 |
| Equipment | 0 | 0 | 176 |
| Structure | 0 | 0 | 52 |
| Engine and cooling | 0 | 0 | 42 |
| Service brakes | 0 | 0 | 32 |
| Steering | 0 | 0 | 32 |
| Suspension | 0 | 0 | 26 |
| Visibility | 0 | 0 | 26 |
| Engine | 0 | 0 | 25 |
| Powertrain | 0 | 0 | 19 |
| Exterior lighting | 0 | 0 | 16 |
| Fuel system | 0 | 0 | 11 |
What owners report
Short excerpts of NHTSA complaints in the original wording. These are owner statements not verified by NHTSA; personal data removed.
Audi is unable to correct the recall repairs despite several attempts by us to schedule. Advised parts are no longer available and were not available during 2 previous attempts to repair.
February 27, at approximately 1:20am my vehicle caught fire while parked in the driveway after sitting for about 9 hours. The fire originated near the gas tank. The fire department was called, there is a fire report being conducted. Audi was notified.
Comparison
By complaint count this model year ranks 1,862 of 2,102 model years in the NHTSA data (among the 11% least complained about).
On average one model year of the A6 has 19 complaints (12 years in the data). This year has 2, below average.
What to check before buying
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Fuel/propulsion system. Fuel smell, leaks, rough running, fuel-system codes.
- Air bags. Check the SRS light, stored codes and airbag/curtain status after any impact.
- Structure. Rails, pillars, panel gaps, signs of pulling or welding.
Manufacturer service bulletins
Bulletin titles as filed with NHTSA.
- This bulletin states that technicians are required to report to the manufacturer when a vehicle has…
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.
- This bulletin provides information about billing for a broken sunroof glass panel
- This bulletin provides information about vibrations and rotational steering vibrations
- This TSB describes a corrosion issue due to outside influence and the prohibition of warranty in these cases
- This bulletin provides information for reporting safety related information to the manufacturer
- This bulletin provides infomraiton abou the Audi frequency analysis application, which is available in the…
This bulletin provides infomraiton abou the Audi frequency analysis application, which is available in the App Store for Android and Apple phones.
- This bulletin provides information when the license plate mounting bracket threded inserts are stripped
- This bulletin provides service information regarding exterior glass cleaning
- This bulletin provides information when there is a paint issue on alloy wheels
- This service information TSB provides warranty coverage information for vehicles with a broken sunroof panel
- This bulletin provides information about leather care and seat repair
- This bulletin provides information about the general approach for brake vibration concerns
NHTSA lists 601 bulletins for this year; the 12 newest are shown here.
Other years of this model
Questions and answers
What are the most common problems with the 2018 Audi A6?
Owner complaints to NHTSA most often mention: electrical system, fuel/propulsion system, air bags. Total complaints: 2. The most frequent symptoms in complaint texts: smoke, burning smell, fire (50%).
How many service bulletins (TSB) were issued for the 2018 Audi A6?
NHTSA lists 601 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.
Should I buy a 2018 Audi A6 from a US auction?
Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.
Other 2018 models
Read also
Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-04.