Recall 18V863 affects 1,104 2018 Audi A3 Cabriolet and Tt Roadster vehicles for a fuel-line connector defect. Repair is free at any franchised Audi dealer.
Under recall 18V863, Audi is recalling 1,104 2018 A3 Cabriolet and Tt Roadster vehicles because the fuel hose quick connector can detach from the fuel supply line in the engine bay, which can create a fuel leak. A leak in the engine compartment can increase the risk of fire, and Audi dealers will secure the connection free of charge.
Does this recall apply to your specific vehicle?
The official, free per-VIN recall check is run by NHTSA. Enter your VIN and we'll forward you directly — and add you to a free watchlist so you hear about new recalls for your vehicle.
Check my VIN at NHTSARecallNotify doesn't check your VIN — NHTSA's official tool does. We use your email only to alert you to new recalls.
Watch this vehicle for recalls
Add it to your free watchlist and we will alert you as new federal recalls are posted for your year, make and model. New-recall alerts are rolling out now.
You are on the watchlist.
We will email you as new federal recalls are posted for your vehicle.
What's wrong?
The fuel hose quick connector on the 2018 Audi A3 Cabriolet and Tt Roadster is the latch that joins the fuel hose to the fuel supply line in the engine bay. It is supposed to lock the line in place so gasoline stays contained while the engine is running and the fuel system is under pressure.
On affected vehicles, dimensional deviations in the fuel line interfere with the guiding sleeve used during assembly. That sleeve can become distorted, and friction can make the connector feel seated even when it has not fully latched. If the connector is not positively locked, it can detach from the fuel supply line and allow fuel to leak in the engine bay.
The warning sign Audi identified is a fuel odor in the vehicle. If you smell gasoline, treat it as a sign that the connection needs dealer attention before normal use continues.
Who's affected?
Covers the A3 Cabriolet and Tt Roadster under the same fuel system hose, line, and fitting component.
| 2018 Audi A3 Cabriolet | fuel system |
|---|---|
| 2018 Audi Tt Roadster | fuel system |
| Units affected | 1,104 |
| Field incidents | NHTSA has logged no field incidents to date. |
A matching 2018 Audi model does not guarantee inclusion. Check your VIN to confirm whether your specific car is included.
What's the safety risk?
A fuel leak in the engine compartment raises the risk of a fire. If you smell fuel inside the vehicle, park safely, shut it off, and call an Audi dealer for guidance. Schedule the recall repair soon so the fuel line connection can be secured. Repair is free at any franchised Audi dealer.
What should I do?
- Check your VIN to confirm your 2018 Audi A3 Cabriolet or Tt Roadster is included in this recall.
- Contact a franchised Audi dealer to schedule the free fuel line inspection and securing work that fixes the fuel hose quick connector at the fuel supply line.
- Bring the recall notice if you have it, and reference recall number 18V863 when you call.
- Keep the vehicle away from ignition sources if a fuel leak is present, then contact the Audi dealer before moving it.
What happens at the repair
At the dealer, an Audi technician checks the fuel hose quick connector at the fuel supply line in the engine bay and secures the connection when it is loose or not fully locked. The inspection and any needed securing work are free under the recall, with parts and labor covered by Audi. Audi is not offering reimbursement for this campaign, so prior out-of-pocket repair costs are not handled through a separate recall reimbursement program.
| Reimbursement | No separate reimbursement |
|---|
Timeline
| December 5, 2018 | NHTSA published the recall |
|---|---|
| January 11, 2019 | Owner notification mailed |
| February 1, 2019 | Dealer notification began |
| February 1, 2019 | Dealer notification ended |
| February 1, 2019 | VIN-searchable in NHTSA's database — Check your VIN to see whether this recall applies to your specific vehicle. |
| February 1, 2019 | Interim owner notification (was planned for this date) |
Frequently asked questions
What is recall 18V863?
Recall 18V863 covers 1,104 2018 Audi A3 Cabriolet and Tt Roadster vehicles with a fuel-hose quick connector that can detach from the fuel supply line in the engine bay. A detached connector can cause a fuel leak and increase fire risk. Audi dealers will secure the fuel line connection for free.
What should I do if my 2018 Audi A3 Cabriolet or Tt Roadster is on this recall?
Check your VIN to confirm your specific vehicle is included in recall 18V863. If it is, contact a franchised Audi dealer and ask for recall repair 20BK. The dealer will secure the fuel line connection for free.
Is the recall repair free?
Yes. Federal recall law requires the manufacturer to repair the defect at no cost, and Audi dealers will secure the fuel line connection free of charge. Parts and labor are covered for vehicles included in recall 18V863.
What is the safety risk?
The safety risk is a fuel leak in the engine compartment, which can increase the risk of a fire. If your VIN is included, arrange the free Audi dealer repair and ask the service desk whether the vehicle needs any extra handling before your appointment.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/18V863000 |
|---|---|
| Audi customer service | 1-800-253-2834 |
| NHTSA recall # | 18V863 |
| NHTSA recall # (full) | 18V863000 |
Source documents
-
Download Recall Investigation Document (PDF) (PDF) - Download Owner Notification Letter (PDF)
- Download Owner Notice (PDF)
- Download Recall Report (PDF)
- Download Quarterly Report (PDF)
- Download Recall Acknowledgement (PDF)
This article is generated from NHTSA's primary recall filings and reviewed against the source on May 25, 2026. RecallNotify does not paraphrase NHTSA's consequence language; that text is reproduced as written above. Editorial standards →