Name: BN OBD Cap (Prevent ECU Re-lock) B58 S58 B48 FEMTO
Brand: BimmerNetwork
SKU: BN_OBD_CAP_-1
Price: 5.0 USD
Availability: InStock

BN OBD Cap (Prevent ECU Re-lock) B58 S58 B48 FEMTO

$5.00

Shipping calculated at checkout.

Style

Standard Cap

Money/Note Clip Cap

Worldwide Shipping

BimmerNetwork OBD Reminder Cap – Protect Your BMW Tune from Dealer Software Updates

Don’t risk losing your custom tune — protect your unlocked DME with the BimmerNetwork OBD Cap.
Designed specifically for modern BMWs with locked MG1/MD1 DMEs, this cap acts as a physical and visual reminder to prevent unwanted dealer software updates that could re-lock your ECU and cost you thousands to re-unlock.

Whether you’ve sent your DME to FEMTO or used a local unlock service on your gen1, this small accessory can save you big headaches.

🔒 Features:

Bold Warning Text: “DO NOT SOFTWARE UPDATE” is molded directly into the cap, clearly visible to any technician who attempts to plug into your OBD-II port.
Guaranteed Visibility: The Technician HAS to remove the BN OBD cap before being able to access the obd port.
Optional Note/Money Clip: Discreetly leave a cash tip or written message for the tech as a friendly incentive to follow your instructions.
Universal BMW Fitment: Snaps securely onto all BMW OBD-II ports G-series, F-series, and beyond.

💸 Why It Matters:

Modern BMW ECUs (MG1, MD1) require expensive unlock procedures if re-locked by a dealer software update. The BimmerNetwork OBD Cap serves as a last line of defense, ensuring your investment in tuning stays protected. A 30-second update can cost you $1000+ to fix, this cap helps avoid that entirely.

✅ Perfect For:

Tuned B58, S58, B48, and B46 owners
Bootmod3, MHD, and Ecutek and other users
Anyone with a FEMTO-unlocked DME
G-series and late-model BMWs at risk of auto re-lock

Protect your tune. Save your wallet. Stay in control.
Install the BimmerNetwork OBD Cap before your next dealership visit.

Color and design May Vary as we make improvements/changes over time.

prevent BMW dealer from re-locking DME
avoid BMW dealer software update
protect BMW tune from dealer overwrite
reminder cap for BMW tuning
OBD port warning cap for BMW
tuning safety accessory for BMW
protect custom BMW ECU tune
BMW ECU re-lock prevention cap
OBD block cap with message
aftermarket BMW DME protection tool
Bootmod3 DME unlock
MHD tuning protection
BMW MG1 MD1 tuning
B58 tuning support
S58 tuning safeguard
G-series BMW tuning
DME lock/unlock warning
BMW ECU flash protection
dealership tuning warning

BimmerNetwork operates both with inventory stocked on hand, and through shipping items from our vendors. By making a purchase from BimmerNetwork, you accept that orders will ship upon availability and inventory status with our, and our vendors products.

Paying for expedited shipping methods only affects the time frame once the package is in the hands of the carrier. Paying for these methods does not and can not affect actual product availability or turn around times.

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