See also:

Problems with PARKTRONIC
Problem Possible causes/consequences and Solutions Only the red segments in the PARKTRONIC warning displays are lit. You also hear a warning tone for approximately two ...

Additives
Only use DEF in accordance with ISO 22241. Do not use additives with DEF and do not dilute DEF with water. This may destroy the BlueTEC exhaust gas aftertreatment system. ...

Even more agile: sports suspension and Dynamic Handling package as an option
In addition to the standard-specification AGILITY CONTROL suspension, the C‑Class offers two other options for adjusting the suspension's characteristics in line with drivers' personal prefe ...