Variable Speed Limiter, function - GF30.30-P-3001M
ENGINE 275.950 in MODEL 215, 220 except CODE (494) USA version except CODE (498) Japan version
ENGINE 275.951 in MODEL 230 except CODE (494) USA version except CODE (498) Japan version up to Model Year 08
ENGINE 275.953 in MODEL 216, 221 except CODE (494) USA version except CODE (498) Japan version up to Model Year 08
ENGINE 275.954 in MODEL 230 except CODE (494) USA version except CODE (498) Japan version up to Model Year 08
ENGINE 275.980 in MODEL 215, 220 except CODE (494) USA version except CODE (498) Japan version
ENGINE 275.981 in MODEL 230 except CODE (494) USA version except CODE (498) Japan version up to Model Year 08
ENGINE 275.982 in MODEL 216, 221 except CODE (494) USA version except CODE (498) Japan version up to Model Year 08
ENGINE 285.950 in MODEL 240 except CODE (494) USA version except CODE (498) Japan version
ENGINE 285.980 in MODEL 240 except CODE (494) USA version except CODE (498) Japan version
An additional function to the cruise control is the variable speed limiter (VGB) from 30 km/h (20 mph) right up to the maximum speed of the vehicle. The accelerator pedal must be actuated further. When the brakes are applied, the variable cruise control is not deactivated If the ignition is OFF, the memory setting of the variable speed limiter is retained.
- Variable speed governor (VGB)
A sliding section on the variable cruise control switch is moved to switch over to the variable speed limiter (LED in cruise control switch comes on). The value of the speed limit is set by means of the cruise control push-button switch with variable speed limit.
If the engine's braking effect should prove insufficient to prevent the vehicle from accelerating beyond the preset speed during steep descents, an acoustic warning sounds to alert the driver that the brakes should be applied. Vehicles with Distronic (DTR) are braked.
The signals from the cruise control push-button switch with variable speed limit are detected by the steering column module and transmitted via the CAN data bus.
- 1.1. Activation with vehicle stationary
- Engine ON
- Selector lever in P
- Actuation of the sliding part of the cruise control switch so that the LED lights up
To use SET ACCELERATION:
The display shows the lowest speed available for programming, 30 km/h or 20 mph. The switch button can then be tapped briefly or held down to raise the maximum speed in increments of 10 kph.
To use SET DECELERATION :
The display shows 30 km/h (20 mph).
To use SET MEMORY :
Activation of the last set speed limitation.
Position OFF : Deactivate
- 1.2. Activation while driving
Actuation of the sliding part of the cruise control switch so that the LED lights up
To use SET ACCELERATION:
The vehicle speed limit is rounded up to the next 10 km/h of the speed of the vehicle at that moment, e.g. from 83 km/h to 90 km/h. The switch button can then be tapped briefly or held down to raise the maximum speed in increments of 10 kph.
To use SET DECELERATION:
The vehicle speed limit is rounded down to the next 10 km/h of the speed of the vehicle at that moment, e.g. from 83 km/h to 80 km/h. Pressure can be maintained on the switch to lower the governed maximum speed in 10 kph increments by as much as 30 kph below instantaneous vehicle speed. The tip function must be used for adjustments beyond this point.
Vehicle speed drops.
To use SET MEMORY:
The last governed maximum speed is reactivated. If the current road speed is more than 30 km/h above the current maximum speed stored in the system, it will not be possible to activate the variable speed limiter (the display flashes for approximately 5 s when the cruise control push-button switch is released). The reason that the cruise control remains inactive under these conditions is that substantial braking would be needed to achieve convergence with the stored speed. It is possible to increase the vehicle speed in stages each of 1 km/h.
- 1.3. The speed limit is deactivated when:
- Moving the cruise control switch into position OFF
- for kickdown with the accelerator pedal
- Moving the sliding switch of the cruise control switch into cruise control position (LED off)
Cruise control deactivation via kickdown:
If the difference between the speed limit and the current speed is less than 20 km/hour, and the kickdown is recognized in this range, then the variable speed limiter will be switched off (example 1).
Example 1:
VSL = 100 km/h, actual speed = 83 km/h,
With kickdown, VSL is switched off.
Example 2:
VSL = 100 km/h, actual speed = 30 km/h,
With kickdown up to 80 km/h, VSL remains in operation.
The cruise control with the variable speed limiter is also called the "Speedtronic".
| Condition (engine on) (vehicle without Distronic) | Display in instrument cluster | LIM indicator lamp | Warning buzzer |
|---|---|---|---|
| VGB OFF | Odometer | Off | Off |
| VGB ON (LIM lights up) | Set vehicle speed limit | on | off |
| Excess downhill acceleration | Set Speed limit |
on | on |
| Activation attempt with system error | "-km/h" flashes | off | on |
| Attempt to activate stored setting without data in memory, e.g., after disconnecting battery. | "-km/h" flashes | off | off |
| ME-SFI control unit, location/task/design/function | GF07.61-P-5000M | ||
| Throttle valve actuator, location/task/design/function | GF30.22-P-4101M | ||
| Accelerator pedal sensor, location/task/design/function | GF30.20-P-4010M | ||
| Variable cruise control push-button switch, location/task/design/function | GF30.30-P-3101M |