Perform an identification of the vehicle to confirm the ECU reference. A message will confirm whether: the ECU is supported, the ECU is already unlocked, Mail-in Unlock is available. Remove the ECU and check its general condition (pins, casing, etc.). Purchase the “ Mail-in Unlock ” product on autotuner.com. Carefully pack the ECU , print the DHL label received by email after your order, and send the parcel. Once the ECU is received , reinstall it in the vehicle. Reading and writing will be possible with your AutoTuner Tool.

PSA Bosch MD1CS003 - Mail-in Unlock

Name: PSA Bosch MD1CS003 - Mail-in Unlock
Brand: remote-unlock
SKU: md1cs003-remote-unlock
Price: 250.00 EUR
Availability: InStock

€250,00

Tax excluded. Shipping calculated at checkout

Read & Write Required After Mail-in Unlock

After the Mail-in Unlock, this ECU must be read and written before the engine can be restarted. Make sure you have an AutoTuner tool or any programming device compatible with our Mail-in Unlock service.

Important: Before you ship!

Do not open the ECU before sending it to us.
We do not process opened ECUs.

Finally, a solution for Bosch MD1CS003 ECUs in post-2020 PSA models.

*Compatible ECU:

BOSCH MD1CS003 TC298

To use this service, you’ll need to ship your ECU to our headquarters for unlocking.

Please make sure to verify your ECU’s eligibility by performing a Bench identification before sending it in for Mail-in Unlock.

Once the unlock is completed, we’ll return the ECU to you, ready for Bench read/write operations.

Good news: a dealer update does not impact Mail-in Unlock. 👍

The total shipping cost—calculated at checkout—includes pickup at your location, shipment to our headquarters, and return delivery with insurance. We take care of the entire logistics process.

This service applies to a single ECU only.

The ECU will be systematically returned to stock. If it was previously tuned, the tuned file will be permanently lost.

Mail-in Unlock is compatible with AutoTuner Tool. Compatibility with third-party tools cannot be guaranteed.

Image for illustration only – ECU not included.

Customs value

The declared value is now 50 EUR, in order to facilitate customs clearance! Customs fees may apply depending on your country.

Mail-in Unlock

FAQ

How long does it take?

The ECU is usually processed within the day.

Depending on logistical conditions, it may even be sent back the same day it is received.

This timeframe does not include pickup time, transport, or any delays caused by the carrier.

How does it work?

Perform an identification of the vehicle to confirm the ECU reference.
A message will confirm whether: the ECU is supported, the ECU is already unlocked,
Mail-in Unlock is available.
Remove the ECU and check its general condition (pins, casing, etc.).
Purchase the “Mail-in Unlock” product on autotuner.com.
Carefully pack the ECU, print the DHL label received by email after your order, and send the parcel.
Once the ECU is received, reinstall it in the vehicle.
Reading and writing will be possible with your AutoTuner Tool.

Is the unlock linked to a specific tool?

No.

The unlock is not linked to any specific AutoTuner tool serial number.

However, we only guarantee compatibility with official AutoTuner tools.

What if the parcel gets lost?

We work exclusively with DHL, a trusted partner since the beginning of AutoTuner.
➡️ Loss rate below 0.01%.
In case of an issue:

A claim has been opened with DHL,
A refund will be issued upon presentation of the purchase invoice for a replacement ECU. (Only for mail-in Unlock)

For more details, check out our full FAQ.

Mail-in Unlock FAQ