Table of contents: Removal the brake booster pressure… ↓ Checking the check valve ↓
Removal the brake booster pressure sensor "G294"
The brake booster pressure sensor "G294" is installed in the water drainage box in front of the brake booster. It is necessary to remove the lining of the water drainage box. Remove the lining of the water drainage box. Disconnect the plug connector "1". Carefully pry the brake booster pressure sensor "G294" from top to bottom and remove it.
Installation in reverse order.
Checking the check valve
The check valve is firmly installed in the vacuum hose. To check, remove the vacuum hose. Air should flow through the valve in the direction of the arrow. In the opposite direction, the valve should remain closed. Ensure that it is installed correctly. The arrow points to the vacuum hose.
[This article was previously published on the resource: AudiManual.ru]