Cleaning the exterior lighting
•► Clean the plastic lenses of the exterior lights with a wet sponge and a mild cleaning agent, e.g. Mercedes-Benz car shampoo or cleaning cloths.
Only use cleaning agents or cleaning cloths which are suitable for plastic light lenses. Unsuitable cleaning agents or cleaning cloths could scratch or damage the plastic light lenses.
See also:
Problems with the SmartKey
Problem
Possible causes/consequences and
Solutions
You cannot lock or unlock the vehicle using
the SmartKey.
The SmartKey battery is discharged or nearly discharged.
...
High-beam spot lamp (vehicles with LED-daytime running lamps)/infrared light
(Night View Assist Plus)
Due to their location, have the bulbs in the
left-hand headlamp changed at a qualified
specialist workshop, e.g. an authorized
Mercedes-Benz Center.
Switch off the lights.
Open the hood.
...
ATA (Anti-Theft Alarm system)
A visual and audible alarm is triggered if the
alarm system is armed and you open:
• a door
• the vehicle with the mechanical key
• the trunk lid
• the hood
The alarm is not switched off, even ...