Automotive Glossary

One-line definitions of the technical terms used across tuning, suspension, diagnostics and Mercedes-Benz electronics. Open a term for the full explanation.

11 terms, sorted A-Z
Term	Short definition
A
AIRMATIC	AIRMATIC is the Mercedes-Benz electronically controlled air suspension - air springs, a compressor and level sensors keep the car at a set ride height.
Android Auto	Android Auto shows an Android phone's maps, music, calls and messages on the car's display, controlled with the car's own controls and voice commands.
Apple CarPlay	Apple CarPlay shows an iPhone's maps, music, calls and messages on the car's display, controlled with the car's own controls and Siri.
C
Chassis Code	A chassis code such as W205, W213 or X253 is Mercedes-Benz's internal name for a model generation and body style - used to match parts and modules.
D
DYNAMIC SELECT	DYNAMIC SELECT is the Mercedes-Benz drive program switch that changes engine, transmission, steering and suspension settings - Comfort, Sport, Eco and more.
E
ECO Start-Stop	ECO start/stop switches the engine off when the car stops and restarts it when you release the brake - and turns itself back on with every start.
Exhaust Flap	Exhaust flaps are electronically controlled valves in AMG and sport exhausts that open for a louder, freer-flowing sound and close for a quieter one.
I
Instrument Cluster	The instrument cluster is the display behind the steering wheel - speed, revs and menus for trips, driver assistance and, on AMG cars, performance data.
M
MultiBeam LED	MULTIBEAM LED is a Mercedes-Benz adaptive headlight with individually controlled LEDs that keeps high beam on while masking out other road users.
O
OBD-II Port	The OBD-II port is the standard 16-pin diagnostic socket under the dashboard, required on cars sold in the US since the 1996 model year.
S
Stage 1	Stage 1 is a software-only recalibration of the engine control unit for an otherwise stock car - more power and torque without hardware changes.