See also:

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. ...

Clearing the memory of the integrated garage door opener on the rear-view mirror
– Turn the SmartKey to position 2 in the ignition lock. – Press transmitter buttons 2 and 4. The indicator lamp lights up yellow. – Press and hold transmitter buttons 2 and 4 until the indicato ...

INTERIOR
In stark contrast to the fresh, forward-thinking exterior styling, the CLS550's interior comes off as stodgy and conservative. Frankly, it's got quite the boys-club feel inside. No luxury has been ...