Safety Precautions

Safety Precautions

CAUTION: Brake fluid is poisonous.

CAUTION:
^ Brake fluid must not contact painted parts.
^ Brake fluid absorbs moisture from the air and must therefore be replaced every two years. Use only new, unused and approved brake fluid that complies with MVSS 116 DOT 4.
^ Do not use silicone-based brake fluid (DOT 5). Even the smallest traces can cause severe corrosion in the brake system.

CAUTION:
^ You must always secure testing and measuring equipment on the rear seat.
^ When vehicle is being driven, only a second technician operate this equipment.

If one or two chambers in the brake fluid reservoir are completely empty (e.g. leaks in braking system) bleed the hydraulic unit with the Scan Tool VAG1551 or Vehicle Diagnostic Testing and Information System VAS 5051 in "basic setting" function.

CAUTION: Do not exceed filling pressure of 1 bar (14.5 psi) when filling brake fluid using VAS 5234. The brake system will not be completely bled if excessive pressure is used.

Observe following if test and measuring instruments are required during a test drive:

^ Test and measuring instruments must be secured to rear seat and operated by a 2nd person from this location.
^ When test and measuring instruments are operated from the front passenger seat there is a danger that the person sitting there could be injured in an accident when the airbag is triggered.