Thinkcar · Vehicle Diagnostic Devices
Thinkcar Expert model for workshops wanting an AI-supported interface, large screen, and combined passenger car/commercial vehicle/EV coverage in the same device.
The exact plan and total amount will be shown again at the payment step.
Product information
The Thinktool Expert 399 is a professional Thinkcar model developed for services working with passenger cars, commercial vehicles, and electric vehicles, featuring an AI-supported interface and a large screen.
Vehicle Coverage
The make name alone does not guarantee compatibility. Within the same make, model year, engine, chassis, control unit, communication protocol, and intended operation can yield different support results.
Product details
The Expert 399 is evaluated based on screen size, VCI package, software coverage, and supported operations. Services working with passenger cars, commercial vehicles, and EVs compare this model based on their vehicle fleet.
Product details
The Expert 399 model reads data from vehicle control units, executes supported diagnostic commands, and records the operation result. Its main uses and hardware features include AI-supported diagnostics, passenger cars, commercial vehicles, and EV coverage.
The service menus that can be opened on the Expert 399 model vary depending on the brand, model, year, control unit, and installed software package.
Product details
The Expert 399 model collects communicating control units and accessible fault records in a single service report during AI-supported diagnostics. The technician saves the initial record obtained for AI-supported diagnostics without clearing codes; after the repair, the Expert 399 model repeats the same operation to differentiate ongoing faults.
For the Expert 399 model, passenger and commercial vehicle coverage is determined according to the manufacturer's current brand, model, year, and control unit list. The vehicle group is based on the brand, model, year, and system list published by the manufacturer.
For the Expert 399 model, EV coverage is determined according to the manufacturer's current brand, model, year, and control unit list. The software license specifies the duration of software access and subsequent license conditions.
After the technician prepares the Expert 399 connection, they record the initial scan, apply the selected function according to the manufacturer's procedure; they save the initial findings, the performed operation, and the final check in the same service report. Opening a menu on the Expert 399 screen does not solely indicate that the operation is complete or the fault is resolved.
Product details
During the initial system scan upon vehicle acceptance with the Expert 399 model, the vehicle identity is verified, and supported control units are scanned. The Expert 399 saves the communicating systems, fault codes, and accessible event information together in the initial report.
The VCI model, software version, and vehicle identity used with the Expert 399 are added to the vehicle acceptance record. Codes are not cleared before obtaining the Expert 399 initial report; a single fault record does not directly lead to a parts replacement decision. The Expert 399 acceptance scan is added to the service form, specifying the customer complaint and the systems to be followed.
Product details
Live data recording under fault conditions with the Expert 399 model is initiated by defining the safe operating conditions under which the customer complaint occurred. Only data channels related to the fault are selected on the Expert 399 screen; unnecessary PIDs are excluded from the recording.
The Expert 399 model saves live data with measurement units; operating conditions such as vehicle identity, test time, engine speed, load, and temperature are added to the recording. The technician interprets sudden changes on the Expert 399 along with fault codes and event logs; a single value does not directly lead to a parts replacement decision.
After the repair, a second data recording is taken under the same conditions with the Expert 399, and the two results are compared side-by-side.
Product details
During the review of fault codes and event logs together with the Expert 399 model, the recorded and current fault codes of the relevant control unit are first read. The Expert 399 saves accessible event data such as speed, temperature, voltage, or mileage at the time of the fault in the same report as the code.
Vehicle identity, control unit, and software version are added to the Expert 399 service form. The technician compares the Expert 399 data with the customer complaint and physical test results; the event log alone does not identify the faulty part. Upon completion of the Expert 399 review, whether the code has been cleared and the next control step are written to the report.
Product details
To recheck fault codes after repair with the Expert 399 model, the vehicle and control unit from the initial service report are reopened. The Expert 399 displays the codes found before the repair and the relevant live data measurements as a reference.
In the second recording taken with the Expert 399, the vehicle identity, software version, and test conditions are compared with the initial recording. After the vehicle is brought to a similar operating state, the Expert 399 scans the same systems again. The Expert 399 final report explains the deleted, returned, and ongoing fault records along with the performed repair.
Product details
Definitive compatibility cannot be stated for the Expert 399 model without selecting the vehicle brand, model, year, engine, control unit, and the intended operation together. The Thinkcar official coverage tool shows which system, service function, or protocol is activated for the selected vehicle and control unit for the Expert 399.
The presence of a brand line does not prove that active testing, coding, programming, TPMS relearn, or security gateway access is also enabled on the Expert 399.
Before ordering, prepare the VIN or full model information, model year, engine/chassis distinction, and the intended operation for the Expert 399; also check the software version, license period, VCI, adapter, and regional package.
Product details
The package coverage, vehicle group, and software license determine the daily usage, software access, and delivered package of the Expert 399 model device. The applicability of these usage areas on the Expert 399 model depends on the installed vehicle software and the relevant control unit, in addition to the device hardware.
Brand, model, year, and system support for the Expert 399 are read from the manufacturer's current vehicle and function list. Screen, connection, protocol, battery, and software specifications are limited to the official technical data published for the Expert 399 model.
Opening a specific vehicle menu on the Expert 399 screen does not indicate that the pre-conditions for the operation are met or that the fault has been resolved.
Product details
The choice between the Expert 399 model and the Thinktool Expert 191 Diagnostic Tool, Thinktool Expert 195, Thinktool Expert 391, and Thinktool Expert 394 AI is made based on differences in supported functions, connections, and packages.
The number and AI label in the Expert family do not mean the devices have the same hardware; each model's hardware, VCI structure, and supported functions are evaluated separately. Package coverage, vehicle group, and software license are the primary selection criteria for the Expert 399 model.
The connection method, protocol support, software coverage, and additional modules of the devices compared with the Expert 399 model are not the same. The vehicle and control unit support required for multi-system vehicle control is read from the manufacturer's current list published for the Expert 399 model.
A device that does not offer the required function or connection for multi-system vehicle control on the Expert 399 model is not suitable for this service task, even if it is more comprehensive in other areas.
Product details
Working with the Expert 399 model begins with writing the vehicle or equipment identity and the AI-supported diagnostic request into the work order. The technician prepares the package coverage condition and records the initial scan or connection test with the Expert 399 model.
Only the relevant system is opened on the Expert 399 model; if there is an active command or write operation, the vehicle voltage is monitored throughout the process. After the application is completed, the Expert 399 model scans the same system again. The software license, initial record, and the operation performed with the Expert 399 model are shown in the service report.
Product details
The Expert 399 model package may consist of a tablet or main unit, VCI or connection cable, power components, adapters, and carrying equipment; the exact scope is specified with names and quantities in the box contents. Package coverage, vehicle group, and software license are checked based on the delivered set.
Optional modules in the manufacturer's visual are included in the standard package only if explicitly stated in the Expert 399 box contents. The included software period and warranty period are different conditions. When renewing the Expert 399 software, the device serial number and the license offered for this model are used.
Related pages
Technical Resources
Technical information verified with official sources on October 6, 2026.
FAQ
The Expert 399 model is a professional-level diagnostic device used for AI-supported diagnostics, passenger cars, commercial vehicles, and EV coverage. The package contents, vehicle groups, and software license indicate the vehicle, connection, and package selection conditions for the Expert 399.
If a task to be performed with the Expert 399 model is not found in the manufacturer's current vehicle and function list, it is not considered a standard feature.
No. The vehicle and function coverage on the Expert 399 model depends on the brand, model, year, control unit, and installed software package. The manufacturer's official vehicle and function list is the basis for the Expert 399. The list shows the Expert 399 functions on a vehicle and control unit basis.
During the initial use of the Expert 399 model, the model label, tablet charge, VCI or OBD cable, account, and software version are recorded. After checking the package contents, a connection is established with the vehicle. The initial trial is completed with a read and scan operation for AI-supported diagnostics instead of a write command; the obtained report is saved.
The Expert 399 model is a product that uses software; the included update period and renewal condition are shown for the purchased package. Campaigns offered for the Expert 399 in another country are not automatically applied to the Turkish sales package. The device account, serial number, and current Expert 399 version are recorded at the time of delivery.
The Expert 399 model package includes only the physical parts specified by name and quantity in the box contents. If optional modules, cables, or accessories shown with the Expert 399 model in the manufacturer's visual are not included in the box contents, they are not part of the standard package. Upon delivery, the package contents, serial number, and physical parts are compared with the order record.
The Expert 399 model is used in services performing AI-supported diagnostics, passenger cars, commercial vehicles, and EV coverage at a professional usage level. The daily vehicle or transaction volume and package content needs must match the Expert 399 hardware and software capacity. The Expert 399 cannot be used alone for tasks requiring additional equipment.
Thinktool Expert 191 Diagnostic Tool, Thinktool Expert 195, Thinktool Expert 391, and Thinktool Expert 394 AI are similar models that can be evaluated in the same job class as the Expert 399 model. The models are compared based on package contents, vehicle group and software license, box contents, and daily usage intensity.
Expert 399 is a different device, but not considered an alternative due to its similar price.
Comparison
Compare products in the same class with information on usage level, service tasks, and price.
| Model | Level | Usage | Price | View |
|---|---|---|---|---|
| Thinktool Expert 399Thinkcar | Professional |
| ≈ $4,823238,375 TL charged · VAT included · import duties excluded | View |
| Thinktool MasterThinkcar | Professional |
| ≈ $1,00249,500 TL charged · VAT included · import duties excluded | View |
| Thinktool ProsThinkcar | Service |
| ≈ $1,11154,900 TL charged · VAT included · import duties excluded | View |
| Thinktool Reader 7Thinkcar | Getting started |
| ≈ $26112,900 TL charged · VAT included · import duties excluded | View |
Similar products
Thinktool Master is a professional diagnostic tablet that supports active tests, coding, online programming, and compatible service modules.
Thinktool Pros is a Thinkcar diagnostic tablet used for daily service scanning and live data.
Thinktool Reader 7 is a 5-inch wired device that reads codes and live data in seven vehicle systems, offering seven maintenance functions from 28 options.
