2022 Mercedes-Benz Sprinter — Key Fob Programming Guide

Quick reference

Step-by-step on-board programming

The 2022 Sprinter (VS30, W907/W910) uses Mercedes’ FBS4 immobilizer/security system. There is no user-accessible, on-board programming procedure for adding a new key or remote. Programming requires online authorization and specialized equipment (Mercedes XENTRY/VeDoc) or a high-end locksmith tool with approved credentials. This is by design to prevent theft.

If you need an additional or replacement key:

1. Gather documents: Have your VIN, government ID, and proof of ownership/registration.
2. Decide who will program it: Call a Mercedes-Benz dealer or a mobile/commercial locksmith who explicitly supports Mercedes FBS4 keys for 2019+ Sprinter.
3. Order a VIN-cut key: For most Sprinters, the new fob and the emergency blade are ordered pre-cut/precoded to your VIN from Mercedes. Some locksmiths can supply compatible blanks.
4. Schedule programming: The vehicle must be present. The provider will connect to the van, perform online authorization, teach-in the new key, and confirm remote lock/unlock and start functionality.
5. Verify operation: Test all buttons, start the engine, and confirm the emergency blade operates your door lock.

Notes:

• Lost-all-keys takes longer and may cost more because additional secure procedures are required.
• Used keys from another Mercedes typically cannot be reused on FBS4 vehicles.

Battery replacement

You can replace the coin-cell battery yourself.

1. Remove the mechanical key: Slide the release tab on the back of the fob and pull out the emergency key blade.
2. Separate the cover: Use the tip of the key blade to gently pry the battery cover or seam open as designed (avoid metal tools that can mar the plastic).
3. Identify the cell: Most 2019–2022 Sprinter fobs use a CR2032. Confirm by reading the number on the old cell.
4. Replace the battery: Insert the new coin cell with the positive (+) side oriented as marked inside the housing. Do not touch the faces with bare fingers—use a tissue or gloves.
5. Reassemble and test: Snap covers together, reinsert the blade, then press Lock/Unlock. If needed, start the van once to wake/sync the fob.

Tip: Weak batteries can cause intermittent range or a “Key battery low” warning on the cluster.

Where to buy a replacement fob

• Dealer (Mercedes-Benz): Best parts match and seamless ordering by VIN. Typically $350–$700 for the fob plus programming. Pros: Guaranteed compatibility, warranty support. Cons: Higher price, appointment required.
• Automotive locksmith (Sprinter/Mercedes-capable): Often $300–$600 total depending on region and whether you still have a working key. Pros: Mobile service, competitive pricing, faster turnaround. Cons: Not all locksmiths support FBS4; vet capability beforehand.
• Online marketplaces (Amazon/eBay): Generally not recommended for 2022 Sprinter. Most listings are incompatible, used/locked, or cannot be programmed to FBS4 vehicles. If you do buy online, confirm return policy and be prepared that a dealer may refuse to program non-OEM stock.

Emergency key blade cutting: If your replacement includes a separate blade, it must be laser-cut to your locks. Dealers order it pre-cut by VIN; locksmiths can cut to code or decode your lock.

If on-board programming isn't supported

• System type: Mercedes FBS4 (also called DAS4), a rolling-crypto immobilizer with gateway authorization. The transponder and remote are embedded in the fob and must be personalized to your specific van.
• Why DIY won’t work: The vehicle requires cryptographic online authorization to “teach in” a new key. There is no insert-and-cycle or pedal/door procedure.
• Time and cost expectations: Plan 30–90 minutes with a dealer/qualified locksmith when you have at least one working key; 60–120+ minutes if all keys are lost. Typical totals run $300–$700 depending on parts pricing and mobile service.
• What you can DIY: Battery replacement and, if you already have a precut blade blank, some locksmiths will cut it for $30–$80. Programming itself is not DIY on a 2022 Sprinter.

Important: Do not rely on random FCC IDs or part numbers for this model. Mercedes keys are ordered/coded by VIN; the exact FCC ID and part number will be on your original fob or the dealer invoice for your replacement.

Find a mobile locksmith or shop on Repairius.