repaired · 2020 Q2
Fuel injection system: fuel rail
Risk. A fuel leak in the presence of an ignition source can increase risk of a fire.
2018 Audi A6Problems, recalls & complaints
NHTSA has logged 11 owner complaints about the 2018 Audi A6, most often about the engine. It is covered by 2 safety recalls, and for recall 18V-370 the manufacturer reports only 85% of affected cars repaired.
Source: NHTSA complaints, recalls, investigations and manufacturer recall reports, through March 12, 2026. Updated daily. Photo: Vauxford, CC BY-SA 4.0.
Complaints by system
Where the 2018 Audi A6 has problems
11 complaints grouped by the system owners reported.
7Engine
4Fuel/propulsion system1 crash/fire/injury
1Air bags
1Electrical system1 crash/fire/injury
1Power train
| System | Complaints | Crash, fire or injury |
|---|---|---|
| Engine | 7 | 0 |
| Fuel/propulsion system | 4 | 1 |
| Air bags | 1 | 0 |
| Electrical system | 1 | 1 |
| Power train | 1 | 0 |
Source: NHTSA Office of Defects Investigation. Complaints are submitted by the public and are not verified by NHTSA.
2 recalls
2018 Audi A6 recalls and how many were fixed
Each ring shows the share of affected cars repaired, from the manufacturer’s latest quarterly report to NHTSA. Recall repairs are free at authorized dealers.
repaired · 2020 Q1
Sensor: occupant classification
Risk. If the PODS module malfunctions, the front passenger air bag may not deploy properly in the event of a crash, increasing the risk of injury.
Recalls apply to specific cars. To see whether a recall is still open on yours, enter the 17-character VIN at nhtsa.gov/recalls or with Audi.
Best & worst years
2018 vs. every other A6 year
Bars show complaints per model year. Colors show the CarFlaw verdict: complaints weighted for crashes, fires and injuries, adjusted for years on the road and compared with the A6 median. How we score
'94'95'96'97'98'99'00'01'02'03'04'05'06'07'08'09'10'11'12'13'14'15'16'17'18'19'20'21'22'23'24'25'26
- Avoid
- Caution
- Solid
- Best
- Not rated
NHTSA crash tests
2018 Audi A6 safety ratings
2018 Audi A6 4 DR FWD in NHTSA's New Car Assessment Program. Photos are from NHTSA's crash tests.
★★★★★
Frontal crash★★★★★
Side barrier★★★★★
Side pole★★★★★
- Rollover: 5 stars (9.0% risk)
- Stability control: Standard
- Forward collision warning: Optional
- Lane departure warning: No
In owners' words
What A6 owners report
Recent engine complaints filed with NHTSA, shortened. Personal details are removed.
2018 Audi A6 3.0T diagnosed a coolant leak due to water pump failure at less than 43k miles on March 27, 2024. In July 2023 (at less than 39k miles), the vehicle's thermostat was replaced due to a coolant leak. These are substantial failures in terms of risk to engine damage and cost to consumer,…
The main water pump failed earlier than expected at 48000miles. Dealer mentioned that water pump should not fail so early
Coolant leak, warning light signified an issue with the cooling system. Took vehicle to Audi dealership service department; they confirmed there is a big coolant leak with the coolant pump and thermostat. Vehicle inspected by Audi Sewell dealership for repairs. Symptoms appeared approximately…
Own a 2018 A6?
Decode your VIN to see the recalls for your exact car, then confirm open recalls with NHTSA.