2018-2024 Audi Q5 Auto Start Stop Eliminator | Plug & Play

A plug-and-play memory harness for the 2018–2024 Audi Q5. Out of the factory, start-stop system comes back on at every key cycle. This module remembers your last choice and sends it again at the next start. It plugs in line with the factory connector named in the instructions, using factory-style plugs on both ends, so nothing is cut or spliced.

Nothing is reprogrammed in the engine computer. The module only stands in for the button press you would otherwise make after every start, and it comes out without leaving a trace.

Which Audi Q5 models it fits

Listed applications (each row is a 100% fitment match for the factory connector this part uses):

• Audi Q5: 2018–2024

Trim is not listed separately. Any trim in these years with factory stop-start and the pictured connector is covered.

Why the button resets

With start-stop system active, the engine shuts off when the vehicle comes to a stop and restarts when you lift off the brake or press the accelerator. The off button is a manual override for that drive only. Turn the ignition off and back on, and the system defaults to on again, so drivers who prefer it off end up pressing the button at the start of every trip.

Battery notes for stop-start vehicles

Vehicles with stop-start normally use an AGM or EFB battery sized for repeated restarts. If you replace it, use the same type and size, and follow the manufacturer's battery reset or registration step where one exists. A wrong or unregistered battery can leave the stop-start system disabled, and that has nothing to do with this module.

Troubleshooting notes

A dead or weak battery, a charging problem or an unrelated module fault will change how start-stop system behaves with or without this part installed. Scan the vehicle for stored codes, test the battery and confirm the system works normally with the factory button before installation. That baseline makes any later issue easy to pin down.

Installation and removal

It plugs in line with the factory connector named in the instructions, using factory-style plugs on both ends, so nothing is cut or spliced. Because it is plug-in only, removal is the reverse: unplug the module and reconnect the factory connectors directly. Keep the original clips and trim fasteners if you remove a panel to reach the connector.

Conditions the factory system checks

A Audi Q5 that rarely auto-stops is often telling you something about the battery. Stop-start vehicles usually run an AGM or EFB battery, and the system is one of the first features to drop out as that battery ages. Cabin temperature requests, engine temperature and brake pressure also factor in. None of these checks are altered by the module.

Day-to-day use

Stop-start saves the most fuel in long idles, but plenty of drivers would rather keep the engine running. Common reasons: towing or hauling, where an engine restart under load is unwelcome; drive-thru lines and parking lots, where the engine cycles on and off every few feet; hot days, when the A/C compressor stops with the engine on many vehicles; and stop-and-go traffic where the restart delay is noticeable when pulling into a gap. On a compact luxury SUV, any of these can mean a button press at the start of nearly every drive.

What to expect

• Lets you re-enable the system with the factory button at any time.
• Leaves engine and transmission software untouched.
• Leaves no permanent change after removal.
• Holds the stop-start button state between drives.

Quick fitment check

• Model year and model match a row in the table above (2018–2024 Audi Q5).
• Your Audi Q5 has the factory stop-start button. Base trims or engines without stop-start have nothing for the module to remember.
• No aftermarket remote start, alarm or gateway bypass is wired into the same circuit. If one is, email support before ordering.
• The battery and charging system test good and no warning lights are on.
• The connector at your install point matches the one in the product photos.
• If you are unsure, send your VIN to support@automotivebypass.com and we will confirm fitment.

Shipping, returns and warranty

Standard shipping inside the lower 48 states costs nothing; allow 1–2 business days of handling plus 3–4 in transit. Returns need approval first and must be requested within 45 days. Approved returns are subject to a 20% restocking fee, with return shipping paid by the customer. A 3-year limited warranty applies. Email support@automotivebypass.com (Mon–Fri, 9–5 PST) with your VIN if you want a fitment check.