This chapter contains information on the following subjects:
→ Indicator lamps
→ Catalytic converter
→ Diesel particulate filter
Additional information and warnings:

WARNING
Indicator lampsChecking with Restrictor and Reservoir, with Internally Regulated A/C
Compressor
Note
Connecting service station. Refer to
→ Chapter „Connecting Service Station“.
Observe test requirements. Refer to
→ Chapter „Pressures, Checking“.
–
...
Round Connector Systems
Note
If necessary, housing securing mechanisms (secondary locks)
must be released or removed using specified tool before
releasing the contacts. Refer to
→ Chapter „Secondary Lock“.
...
Tires, Rolling Noises, General Information
Rolling noise perceived by the human ear is caused by
vibrations transmitted from the noise source to the ear via the
air.
Here we are interested in noises created by certain
characteristics of the tires as well as the effects of rolling ...