Mercedes C-Class C-Class Sedan ATTENTION ASSIST and Driver Display Information Car Owner Manuals

ATTENTION ASSIST and Driver Display Information

Information Displayed in the Driver Display

• Length of the journey since the last break
• Attention level determined by ATTENTION ASSIST:
  • More segments in the circle → higher detected attention level
  • Fewer segments → lower detected attention level
• % If ATTENTION ASSIST cannot calculate attention, "System Suspended" appears
• % If a warning is given, multimedia system offers to search for a rest area
• % Sensitivity level is stored and restored when restarting the vehicle

System Limits for ATTENTION ASSIST

• Active between 37 mph (60 km/h) and 124 mph (200 km/h)
• Function may be restricted if:
  • Driving < 30 minutes
  • Poor road conditions (uneven, potholes)
  • Strong side wind
  • Sporty driving style (high cornering speeds, high acceleration)
  • Steering Assist active via Active Distance Assist DISTRONIC
  • Clock set incorrectly
  • Frequent lane changes with speed variations
• % System resets when:
  • Vehicle switched off
  • Driver unfastens seatbelt and opens door

Setting ATTENTION ASSIST

• Navigate in multimedia system: Settings → Assistance → ATTENTION ASSIST
• Tap current setting → Select Standard or Sensitive

Cruise Control

Function

• Regulates speed to value selected by driver
• Stored speed resumes after overtaking if accelerator released
• Speed range: ≥15 mph (20 km/h) to maximum design speed
• Displays on driver display:
  • h (gray): selected but inactive
  • h (green): active
  • Stored speed shown under h display
• System limits: may not maintain speed on uphill; reduce gear on steep downhill to use engine braking
• & WARNING Do not use in heavy traffic, slippery roads, or poor visibility

Operating Cruise Control

• Requirements:
  • Cruise control selected
  • ESP® active but not intervening
  • Speed ≥15 mph (20 km/h)
  • Transmission in h
• Steering wheel controls:
  • J: Adopts stored/detected speed
  • ±: Deactivates cruise control
  • M: Activates cruise control
  • N: Deactivates cruise control
  • 1: Increase/decrease speed
• Activating: press M or N → stores current speed; press J → recalls last stored speed
• % Stored speed deleted when vehicle switched off
• Increasing/decreasing speed:
  • Swipe control panel 1 up/down → adjust by 1 mph (1 km/h)
  • Briefly press M or N → next value ending in 5 mph / 0 km/h
  • Press accelerator to desired speed → press M on control panel 1
• Adopting detected speed with Traffic Sign Assist → press J
• Deactivating: press ± or N, or brake/ESP intervenes

Active Distance Assist DISTRONIC

Function

• Maintains set speed on free-flow roads, maintains distance to vehicle ahead
• Accelerates or brakes based on distance to vehicle in front
• Set speed and distance controlled via steering wheel
• Speed range:
  • Without Driving Assistance Package: 15-100 mph (20-160 km/h)
  • With Driving Assistance Package: 15-130 mph (20-210 km/h)
• % Other features:
  • Adjusts driving style based on drive program (Comfort, Dynamic, Fuel-saving)
  • Accelerates when turn signal on to overtake
  • Reacts to stationary vehicles in urban range (except bicycles/motorcycles)
  • Accounts for one-sided overtaking restrictions on highways
• % If vehicle stopped by Active Distance Assist, can follow again within 30 sec

Driver Display Indicators

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