How to Fix a Sprinter Key
By JEREMY PROOME on Aug 28, 2025The keys or fob to the Mercedes-Benz Sprinter models are unfortunately known to malfunction, but how can they be fixed?
If you are experiencing trouble with your Sprinter key, the first thing to do is to clarify what is actually happening. There are a few common symptoms of faulty Sprinter keys, with everything from the vehicle not starting at all due to electronic problems to physical damage to the key itself.
Having your model number and key type in hand, you can use The ECU Pro’s key replacement page to find the key repair and recovery options available for your Sprinter model.
The ECU Pro offers a mail-in system where you can send your key for comprehensive testing and a diagnostic report, followed by an assessment for repair or replacement. If no fault is found, your existing key will be returned. Keys are tested in live vehicles to ensure the key is fully functional before return. Return shipping is included in the testing price.
Additionally, we can also deactivate missing keys for security.
Mail in automotive electronic repair services
The ECU Pro offers an affordable mail-in repair service for automotive electronics. To have your unit repaired, simply remove the part and mail it to us. Our professional team will either test, repair, or clone your unit.
Our team has over 30 years experience in automotive electronic repairs. We specialize in German vehicles such as BMW, Mercedes and Mini. Our main focus is engine control unit repairs ( ECU, PCM or DME). Our state of the art facility has over 30 test vehicles to ensure that all parts are tested in actual vehicles before being returned to our clients.
Most of the services we provide is plug and play and doesn't require any additional coding.
