DISTRONIC PLUS proximity control helps the driver to maintain a specified (timed) distance from the vehicle ahead when travelling at speeds of 0 to 200 km/h.

Implementing BAS PLUS Brake Assist in conjunction with the PRE-SAFE® brake system helps to avoid rear-end collisions more effectively. If radar sensors identify a potential collision and the driver applies the brakes, BAS PLUS is primed to apply a brake force commensurate to the situation and available stopping distance.

If a potential collision hazard is identified at speeds above 30 km/h and the driver fails to apply the brakes in good time, the PRE-SAFE® brake system emits visual and audible warning signals. If the driver does not respond to this warning, an autonomous partial brake application with a deceleration rate of up to 4m/s2 is triggered approx. 1.6 seconds before the calculated impact. If the system categorises the situation as highly critical and there is no reaction from the driver, an autonomous emergency stop can be triggered automatically approximately 0.6 seconds before what is judged to be an unavoidable impact.

Part of the optional Driving Assistance package Plus.

When the high beams are activated, Adaptive Highbeam Assist always provides the optimum headlamp range and prevents dazzling oncoming traffic. The driver hardly has to operate the high-beam switch any longer and is able to better focus on the driving tasks.

Inattention and fatigue can result in you drifting out of your lane without realising it. With the aid of a stereo camera, the system can detect when continuous or interrupted lane marking are crossed unintentionally. In that case the driver is immediately warned by means of a pulsed vibration of the steering wheel.

If the driver does not react to the warning, Active Lane Lane-Keeping Assist can help to return the vehicle to the correct lane by selectively braking individual wheels Braking interventions are always performed when the vehicle unintentionally drifts across continuous lane marking lines.

In the case of interrupted lane marking lines, an intervention only takes place if the radar sensors detect the danger of a collision on the adjacent lane, for instance, due to oncoming vehicles, overtaking vehicles or the presence of another vehicle travelling in the same direction. If driver action is detected or if the turn indicator has been set, the intervention does not take place at all.

Part of the optional Driving Assistance package Plus.

The system makes it possible to tackle one of the biggest dangers in road traffic visible – vehicles in the blind spot. If changing lane, for example, it can warn the driver and apply selective braking to individual wheels to avert a potential collision.

The Active Blind Sport Assist radar sensors monitor the hard-to-see sector at the sides and behind the vehicle at speeds between 30 and 250 km/h. As soon as a vehicle is detected in the blind spot area a red triangle lights up in the corresponding exterior mirror.

If the driver fails to notice the warning and indicates to signal a lane change, the warning light starts to flash and an audible warning is sounded. If in spite of the warnings a lane change is initiated, the system can warn the driver by tangible course-correcting braking interventions and if even then no reaction is forthcoming, can contribute actively towards manoeuvring the vehicle out of the danger zone.

Part of the optional Driving Assistance package Plus.

The ATTENTION ASSIST function is particularly helpful on long journeys and when driving at night; the system warns the driver if it detects signs of failing attention and increasing weariness.

At speeds of between 80 and 180 km/h, ATTENTION ASSIST warns the driver visually and audibly as soon as it detects any signs of drowsiness or inattention. The background: sensors analyse driving behaviour and can detect any changes compared with the previously determined individual driver profile.

Optional extra for the C 220 CDI BlueEFFICIENCY Edition, C 220 CDI, C 250 CDI, C 180 and C 2006 in conjunction with 6-speed manual transmission. Standard equipment for all models in conjunction with 7G-TRONIC PLUS automatic transmission.

The anticipatory braking assistance system can reduce the risk of rear-end collisions.Radar sensors and a stereo camera are used to permanently record and evaluate the situation ahead of the vehicle. If the driver identifies a potential accident and applies the brakes, BAS PLUS supplies additional braking pressure to ideally prevent a collision. If an impact is unavoidable, a full brake application reduces the impact speed as much as possible.

Part of the optional Driving Assistance package Plus.

This system helps the driver to search for a parking space as well as parking in a parallel parking space. It provides the driver with steering recommendations in the instrument cluster. PARKTRONIC monitors the front and rear of the vehicle when manoeuvring and warns the driver if a potential collision is detected.

Parking Guidance is automatically active at forward speeds of up to 30 km/h. If the vehicle is moving at a speed lower than 30 km/h, the system automatically seeks out and measures parking spaces on either side of the vehicle. The presence of an adequate parking space is indicated by means of a blue "P".

As standard, Parking Guidance only reports parking spaces that have been found on the front-passenger side. If the left-hand turn indicator has been actuated, the system also reports parking spaces on the driver's side. The presence of a parking space is indicated by means of an arrow pointing left or right appearing in the multifunction display of the instrument cluster.

If the driver engages reverse and confirms the activation message in the instrument cluster, the Parking Guidance function is activated with visual steering indications and a signal sound. It indicates when a stopping position has been reached. If it is necessary to reverse and drive forwards a number of times, the driver is requested to drive forwards or reverse each time as required.

The PARKTRONIC parking aid function monitors the front and rear of the vehicle when manoeuvring and warns the driver if a potential collision is detected. .It is permanently active up to a speed of 18 km/h independently of whether Parking Guidance is being used or not.

For the best possible visibility on country roads and motorways, on bends and in foggy conditions, the Intelligent Light System with adaptive bi-xenon headlamps automatically adapts to the weather, lighting and driving conditions .

On country roads the left-hand side road edge is significantly better illuminated, in particular when the foglamps are switched on, on the motorway the range of visibility is increased by up to 60 percent. The extended fog lamp function prevents dazzling of the vehicle's driver due to light reflected by the fog.

The Active Light system enhances safety in curves and when cornering at crossings by producing a better lateral illumination and a high lighting range. The headlamp cleaning system contributes towards improving visibility and consequently enhanced safety.

The system is able to identify critical handling situations in advance and initiate preventive measures for occupant protection in the event of an impending accident. These include e.g. the reversible belt tensioning or the automatic closing of any open windows.

PRE-SAFE® evaluates sensor data from other systems, such as the Electronic Stability Program ESP® and Brake Assist system BAS, and can identify scenarios such as heavy over/understeer and emergency braking.

If a typically critical handling situation is identified by the system, the belt tensioners are activated at lightning speed, the electrically adjustable front passenger seat (only in conjunction with the Memory package) is moved to a more "favourable" crash position, and the power windows and (optional) panoramic sliding sunroof are closed automatically.

Reverse parking and manoeuvring is considerably easier and safer using the rear-view camera. It is activated automatically when reverse gear is engaged and shows the area behind the vehicle (with dynamic guidance lines) on the central display.

Inattention and fatigue can result in you drifting out of your lane without realising it. The system can recognise inadvertent lane departures and can warn the driver with pulsating steering-wheel vibrations.

The system processes the images provided by a camera placed behind the windscreen. Lane markings are registered thanks to differences in contrast. From these data and the actions of the driver that have been registered , the Lane Keeping system determines whether the vehicle is leaving the lane it is travelling in intentionally or not.

If the driver for instance actuates the turn indicator, accelerates vigorously or cuts a tight corner, the intervention can be suppressed from the outset. The system operates in the speed range from 60 to 200 km/h and in the instrument cluster via the "Assistance systems" menu it can be activated/deactivated and adjusted in terms of sensitivity (Standard / Adaptive).

The system visualizes one of the major hazards in traffic. If a vehicle is detected in the blind spot, a red triangle appears in the exterior mirror. Should the driver fail to notice the visual clue and activate the turn indicator, the system issues an additional audible warning.

The Blind Spot Assist system is active at speeds between 30 and 250 km/h. Below 30 km/h a yellow triangle indicates that the system is inactive. Blind Spot Assist can be activated and deactivated via the "Assistance systems" menu in the instrument cluster.