2017-2024 Audi S4 Auto Start Stop Eliminator | Plug & Play
Description
2017-2024 Audi S4 Auto Start Stop Eliminator
Audi’s Start/Stop system can shut the engine off automatically when the vehicle is stopped and restart it when conditions call for driving again. Audi documentation states that the system is automatically activated when the ignition is switched on. For an S4 owner who routinely prefers the feature off, that factory behavior can mean pressing the A/OFF button again after another startup.
A More Convenient Default for 2017-2024 Audi S4
The Recontrol-X Auto Start Stop Eliminator is designed for the 2017-2024 Audi S4 applications listed in the supplied fitment sheet. Its purpose is simple: after startup, it automatically places the Start/Stop function in the off state so the driver does not have to repeat the same manual button input every time the vehicle is started.
This product should be treated as a convenience accessory. It is not a performance tune, does not change engine calibration, and should not be presented as a horsepower, fuel-economy, starter-life, or battery-life upgrade.
Inline Connection at the Factory A/OFF Switch
The supplied installation sequence shows the module connecting directly behind the Start/Stop control panel. The included panel-release tools are inserted into the lower access points, allowing the button panel to be pulled forward. The original A/OFF connector is then released, and the Recontrol-X module is installed between the factory switch and the original harness.
The product measures approximately 5.70 inches from end to end in the supplied imagery. Its compact size allows the assembly to be positioned behind the panel so the installation remains out of sight after reassembly.
No Coding Step in the Supplied Installation
Unlike a software-based change that depends on a diagnostic or coding tool, this product uses the physical Start/Stop switch connection. The provided procedure does not show ECU programming, VCDS/OBDeleven coding, wire cutting, splicing, or soldering. That makes installation focused on accessing the factory button connector, inserting the harness, and reassembling the panel correctly.
Always make sure the locking tabs are fully engaged before closing the trim. Route the short harness so it is not pulled tight or trapped against a panel edge.
Keep the Original Button Available
The module is designed to automate the preferred off state while keeping the normal factory control available. If you want Start/Stop active for a drive, the original A/OFF button can still be used to change the setting. This is consistent with real-world experience reported for the same Audi eliminator hardware family.
Removable and Reversible
The inline architecture also makes the installation reversible. If you later choose to return to the original wiring configuration, disconnect the eliminator and reconnect the factory A/OFF cable directly to the button. No permanent wire modification is required by the supplied procedure.
Fitment Must Match the Supplied Application
The fitment sheet confirms 2017, 2018, 2019, 2020, 2021, 2022, 2023 and 2024 Audi S4. It does not provide separate trim or engine coverage. For that reason, verify the factory A/OFF button, connector shape, and center control-panel layout against the product photos before ordering, especially if the vehicle has a different market specification or interior configuration.
What to Check Before Checkout
Compare the A/OFF switch and connector on your S4 with the supplied images before ordering. A matching model year alone should not replace a visual connector check. If the car already has a Start/Stop warning or electrical fault, resolve that problem before installing a convenience module.
For a matching S4, the product provides a focused set of benefits: automatic Start/Stop-off preference after startup, retained manual button control, compact hidden installation, no software-coding step in the supplied procedure, and easy return to the factory connector arrangement.
Vehicle Fitment
Additional Information
| Brand | Recontrol-X |
Reviews
S&Q
Which Audi S4 model years are listed for this product?
The supplied fitment lists 2017 through 2024 Audi S4. Trim and engine coverage are not separated, so check the factory A/OFF button and connector against the product photos before purchase.
Will I still need to press A/OFF every time I start the car?
The module is designed to automatically place Start/Stop in the off state after startup, eliminating that repeated button-press routine for drivers who normally keep the system disabled.
Does the original Start/Stop button still work?
Yes. The factory A/OFF control remains available, allowing you to switch the system when you want Start/Stop active for the current drive.
Is ECU coding required for installation?
The supplied procedure uses a physical inline connector behind the factory A/OFF button. It does not show an ECU flash, VCDS/OBDeleven coding step, or OBD-II programming procedure.
Is this a performance modification?
No. It is a Start/Stop convenience module, not an engine or transmission tune. It should not be used or marketed as a horsepower, fuel-economy, or engine-performance upgrade.