Control and measuring instruments
1. Coolant temperature gauge,
2. Fuel level indicator with minimum fuel reserve warning light, yellow,
3. Outside air temperature indicator,
4. Trip meter reset button,
5. Speedometer,
6. Trip meter,
7. Clock/instrument lighting dimmer button,
8. Tachometer,
9. Clock,
10. Control and signal lamps.
Coolant temperature gauge
When using anti-corrosion agents and antifreeze, the operating temperature of the coolant, depending on operating conditions, lies within the range from 85°C to 120°C. If the indicator is in the red zone, movement should be stopped.
Fuel gauge with fuel reserve indicator light
When the ignition key is turned to position 2, the fuel gauge operates and the reserve indicator lights up briefly (triangle symbol). It goes out immediately when the engine is started. If the indicator does not go out or lights up when the engine is running, this indicates that the reserve fuel level has been reached, which is about 9 liters.
Outside air temperature indicator
When the ignition key is turned to position 2, the outside air temperature is determined. A sudden change in temperature, for example when leaving the garage, is detected with some delay.
Tachometer
Do not exceed maximum RPM. When the maximum number of revolutions is reached, the fuel supply is stopped. The maximum speed may still be exceeded in forced idle mode.
Battery charging system malfunction indicator light
When the ignition key is turned to position 2, the battery charging system malfunction indicator light comes on on the instrument panel. It should go out after the engine starts. If it lights up while driving, it indicates a malfunction in the battery charging system.
Engine oil pressure warning light
Article was borrowed from the website [MercedesMan]
When the ignition key is turned to position 2, the engine oil level indicator light on the instrument panel comes on. It should go out after the engine starts. If the warning light does not go out or comes on while driving, turn off the engine immediately and check the oil level.
Coolant level indicator light
When the ignition key is turned to position 2, the coolant level indicator comes on. It should go out after the engine starts. If the coolant level indicator light does not go out or comes on while the engine is running, the coolant level is below normal. It is necessary to stop driving and add coolant. If more than 0.75 l of coolant needs to be added or if there are frequent small coolant leaks, you should contact a service station to have the engine cooling system checked.
Indicator lamp for monitoring damage to bulbs in the outdoor lighting circuit
The indicator light for monitoring bulb damage in the exterior lighting circuit lights if the corresponding bulb fails when the parking lights, low beam headlights, rear fog lights or brake lights are turned on. This light also comes on if the corresponding fuse is faulty when the low beam or parking light is switched on. When the lighting is turned off or when the ignition key is turned to position 0, the light goes out. If the brake lights are faulty, this light will only go out when the ignition key is turned to position 0.