[Home](https://autoindustrija.rs/en)[All services](https://autoindustrija.rs/en/services) # Electronic OBD blocker Worried a thief could make a new key through the OBD port? We fit a blocker: the port stays in place, but it does not work for the thief. [The price depends on the device and your car ↓](https://autoindustrija.rs/en/services/electronic-obd-blocker#cena) [Call 067 774 1606](tel:+381677741606)[Message us on WhatsApp](https://wa.me/381677741606) Send us the **make, model, year and city**. We work in several cities in Serbia. Tell us your city. ## How does a thief make a key through the OBD port? Through the OBD port a mechanic reads faults and makes new keys. A thief can buy the same tool. On every car of the same model the port is in the same place, most often under the steering wheel. Petrol cars have it from 2001 and diesels from 2004. The thief gets into the car, plugs in the tool and makes a new key in a few minutes. They do not need your key. [More about car theft through OBD](https://autoindustrija.rs/en/advice/obd-car-theft) ## How do you switch the blocker off for a service? * With an adapter Without the adapter the port does not work * [![An immobiliser fob and card](https://autoindustrija.rs/_next/image?url=%2Fproizvodi%2Fimobilajzer%2Fimobilajzer-privezak-i-kartica.webp&w=3840&q=75&dpl=production-c9bb9ac2b0e3)With the immobiliser fob Or with a code, or a phone](https://autoindustrija.rs/en/services/immobiliser) * With your alarm You disarm the alarm and turn on the ignition Which way suits your car, we tell you before fitting. Tell us what the car already has: an alarm, an immobiliser or a relocated port. Not sure whether you need a blocker or port relocation? [Compare OBD protection](https://autoindustrija.rs/en/obd-protection) [Call](tel:+381677741606)[Message us on WhatsApp](https://wa.me/381677741606) ## What does the blocker stop, and what not? ### The blocker stops * Making a new key through the OBD port * Starting the engine, with some devices. We tell you whether the device for your car can do that. ### Important * Keep the adapter and the fob out of the car. A thief who finds them in the car can switch the blocker off himself. * You do not give the fob to the mechanic. Before a service, switch the immobiliser to service mode. ### These thefts do not go through the port * [![The handle of a car that unlocks without a key in hand](https://autoindustrija.rs/_next/image?url=%2Fproizvodi%2Fimobilajzer%2Fkvaka-keyless-auta.webp&w=3840&q=75&dpl=production-c9bb9ac2b0e3)Your key signal Keyless theft: what helps](https://autoindustrija.rs/en/advice/keyless-car-theft) * [![Cables behind a removed car headlight](https://autoindustrija.rs/_next/image?url=%2Fproizvodi%2Fimobilajzer%2Fkradja-auta-preko-kablova-fara.webp&w=3840&q=75&dpl=production-c9bb9ac2b0e3)Cables behind the headlight Headlight attack: what helps](https://autoindustrija.rs/en/advice/headlight-can-injection-theft) ## How much does an OBD blocker cost You pay when we finish and check the blocker Devices differ in how they are switched off and what they block, so there is no single price. We tell you the exact price before fitting, when you send the make, model and year. Payment cash or through a company ### What you get * A device hidden in the wiring * The port stays in place * A way to switch it off that suits your car * We check the blocker works ## How do we fit an OBD blocker? First we choose the device. Then we fit the blocker. 1. 1 ### You send the car details Send us the make, model, year and city. Tell us whether the car already has an alarm, an immobiliser or a relocated port. 2. 2 ### We tell you the device and the price We fit it only when you agree. We tell you which device suits your car and how much it costs. Before fitting you know how you switch the blocker off. The price depends on: * How you switch the blocker off. * Whether the device also blocks starting the engine. * Whether it goes alone or with an alarm, an immobiliser or relocation. 3. 3 ### We fit and hide the device We connect the device to the wires behind the OBD port and hide it among the car wiring. From outside you cannot see the port is blocked. The blocker switches off only the port. Everything else in the car works. 4. 4 ### We check the blocker While the blocker is on, a diagnostic tool must not connect. When you switch it off, it must connect. 5. 5 ### We show you how to switch it off We show you how you switch the blocker off for a service and how it switches back on. You pay when we finish: cash or through a company. ## What do you do before the vehicle inspection? Switch the blocker off, as for a service. At the vehicle inspection the exhaust equipment is checked through the OBD port. ## Questions before fitting How much does an OBD blocker cost? There is no single price, because devices differ in how they are switched off and what they block. We tell you the exact price before fitting, when you send the make, model and year. You pay when we finish: cash or through a company. What if I forget to switch the blocker off? Then the service tool cannot connect to the car. When you switch the blocker off, the port works again. What if I lose the adapter or the fob? Call us. What we do then depends on the device in your car. Until then a service cannot connect to the car. Can a blocker go in my car? Send us the make, model and year. We tell you which device suits your car. Will a thief find another way? The blocker closes the way through the OBD port. Keyless theft and the headlight attack do not go through the port. For those we fit an immobiliser along with the blocker: the engine does not start without your fob. [More about the immobiliser](https://autoindustrija.rs/en/services/immobiliser) ## Which blocker suits your car? Send us the make, model, year and city. Tell us too whether the car already has an alarm, an immobiliser or a relocated port. We tell you the exact price before fitting. [067 774 1606](tel:+381677741606) [Call](tel:+381677741606)[Message us on WhatsApp](https://wa.me/381677741606) Email: [kontakt@autoindustrija.rs](mailto:kontakt@autoindustrija.rs) ## More about theft protection ### OBD port relocation The factory port does not work without your adapter. 100 €, a visit to your address in Belgrade is included. [More about OBD port relocation](https://autoindustrija.rs/en/obd-port-relocation) ### Immobiliser The engine does not start without your fob or code. [More about the immobiliser](https://autoindustrija.rs/en/services/immobiliser) ### Car alarm installation A siren, a message to your phone and the location in one device. [More about car alarms](https://autoindustrija.rs/en/services/car-alarm-installation) ### GPS vehicle tracking You see on your phone where the car is. [More about GPS tracking](https://autoindustrija.rs/en/services/gps-vehicle-tracking) --- Page on the website: https://autoindustrija.rs/en/services/electronic-obd-blocker auto-industrija, Belgrade. Phone and WhatsApp: +381677741606. E-mail: kontakt@autoindustrija.rs.