Checking with Expansion Valve, Receiver/Dryer and A/C Compressor Regulator
Valve -N280-, Externally Regulated A/C Compressor
General InformationIndicator lamp for the tyre monitoring system
First read and observe the introductory information
and safety warnings 
Lit up
Possible cause  
Solution
The
tyre pressure of one tyre or several tyres has decreased considerably in
comparison to the tyre pressure set by ...
Tire Pressure Sensor and Metal Valve, Removing and Installing
Special tools and workshop equipment
required
Torque Wrench 1410 -VAG1410- and Torque Wrench 1331 5-50Nm
-VAG1331-
–
Place metal valve with rubber seal through rim from inside.
...
Brake fluid
Fig. 117 In the engine compartment: cap
on the brake fluid container
First read and observe the introductory information
and safety warnings Brake fluid will gradually absorb water
from the surrounding air. The brake system will be damaged if there is too much
water in the brake fluid. T ...