Car diagnostics are most often done before buying used equipment. After all, there is a danger of getting a car with hidden defects, the correction of which will require additional financial investments. Diagnostics will allow you to find out the whole truth, reasonably bring down the price or even refuse the deal.
Necessary
Portable auto scanners, adapters and programs for diagnostics of this type of car
Instructions
Step 1
Carry out a visual inspection of the vehicle. Look around the body to see if there are any areas of non-factory painting, welding and reinforcement work, etc. It is necessary to identify all possible chips, scratches, dents, foci of corrosion. In professional centers, a special device is used to determine the thickness and uniformity of the paint. Examine the interior equipment: whether the lighting works, how the seat belts behave. Check the meter readings.
Step 2
Use the power of computer diagnostics to study the operation of vehicle electronics. Connect a portable autoscanner to check not only the vehicle's stability control system, cruise and climate control, immobilizer, but also the engine, airbags and gearbox. The same result can be achieved with special adapters connected to a laptop with the appropriate software. All this equipment is quite specific and has a limitation on the supported car brands and models. Adapters and programs must match each other.
Step 3
Check the mechanical condition of the engine. Measure the compression, listen attentively to the sound of the running motor: are there any extraneous knocks and noises. Assess the existing wear on the motor. Examine the condition of the process fluids, see if there are any signs of leakage.
Step 4
Compare the numbers indicated in the documentation and on the body and engine of the car. The numbers should not only match, but also not raise doubts about their reliability.
Step 5
Apply for a diagnostic service to a specialized center or auto repair shop. Here they will not only give an accurate portrait of the condition of the car, but also suggest the approximate cost of its maintenance in the near future. And this estimate can be used when communicating with the seller of the car.
