Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Vehicle Diagnosis, Testing And Information System
Vehicle diagnostic tester connecting and selection functions.
Special tools and workshop equipment required
- Vehicle Diagnostic, Test and Information System VAS 5051
- Diagnostic Cable VAS 5051/1 or VAS 5051/3
- During a test drive, the testing and measuring equipment must always be secured on the back seat.
- These devices may be operated only by a passenger during a test drive.
-- Connect VAS 5051/1 or VAS 5051/3 to Data Link Connector (DLC).
-- Turn on tester -arrow-.
The tester is operational when it displays a picture of a car.
-- Turn on the ignition.
-- Touch Guided Fault Finding .
-- Select in succession:
- Brand
- Type
- Model year
- Version
- Engine Code
-- Confirm data entered.
Wait until the tester has checked all control modules in the vehicle.
-- Press GO TO and select "function/component selection".
-- Select on display "Running gear"
-- Select on display "Brake system"
-- Select "01-On Board Diagnostic (OBD) capable system..." indicated on display.
Either:
-- Select on display "Anti-lock brake system...".
Or:
-- Select on display "Electric Park/Parking Brake"
-- Select "function" indicated on display.
Now, all possible functions of the anti-lock brake system installed in the vehicle will be displayed.
-- Select desired function on display.
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.