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Scania 4-series cabs: one basic cab in ten versions

Scania has now unveiled all forward-control versions of the new 4-series cab. The low P cab and higher R cab are available as day cabs or sleepers. The R cab also figures in a high-roof sleeper version called the Topline. All cabs are offered with LHD and RHD. The new aerodynamic lines of the 4-series, with the upright windscreen and markedly rounded corner radii, provide a spacious interior environment, while at the same time reducing drag.

The day cabs are intended for operations which give top priority to low vehicle weight, low overall height, minimum overall vehicle length and tight turning circles, and where no overnight facilities are needed. Sleeper cabs are primarily used in long-haul operations, where stop-over comfort is required, the high-roof Topline providing the ultimate in space and comfort. Being wider and longer inside, all new cabs offer more interior space than their counterparts in the 3-series.

Safety

The cabs are made of galvanised steel around a sturdy steel cage and meet

Swedish as well as proposed European cab-safety standards

Integrated seat belts are standard on the driver's and passenger's seats

The cab floor is reinforced so that the seat mountings meet forthcoming safety

norms

Seat belt warning is an optional extra

Scania Alert is a device coupled to the radio, which emits signals to enhance

driver attentiveness. Optional equipment

The steering wheel is impact-absorbing and deformable

The upholstery is flame-retardant and dirt-repellent

The large curved panoramic windscreen has a low bottom line to improve close-

up vision

The window area is 15% greater than on previous models

Sturdy heated rear-view mirrors are fitted with aerodynamic cowlings

Electric mirror adjustment on the passenger side is available as an option

Electrical headlight height adjustment is optional

The multi-focal headlights have excellent beam throw

Headlight washers and wipers are optional

Optional auxiliary lights

Spotlights can also be mounted in the sunvisor above the windscreen (not permit-

ted on all markets) for excellent beam throw and less dirt accumulation

Cab exterior

All 4-series cabs have been designed in close co-operation with Bertone in Italy

All cabs feature air suspension with two or four springs

Strongly rounded corners and a convex roof profile reduce drag by between 4

and 12% compared with the 3-series, depending on bodywork, wind direction,

etc.

Two types of air deflector are available:

- short deflectors for truck with attached body

- long deflectors for tractor with semi-trailer

Air scoops integrated into the front corners create a powerful flow of air along the

side of the cab to keep dirt and spray from the front wheels away from the doors

Flush-fitting side windows contribute to the smooth flow of air along the sides

The wedge shape of the cab and the rounded front corners contribute to a smaller

sweep radius and easier close-quarter manoeuvrability

The body can be fitted just 50 mm behind the cab's rear wall

The lower part of the grille can be folded down to act as a footstep when working

on the cab, for example when cleaning the windscreen

The front bumper is either made of plastic with closed boarding steps or of steel

with open steps and a generous approach angle

For extra clearance, a hinged bottom step is optional on high-frame C-class

vehicles 

Heating and ventilation

The heating system's capacity, air throughflow and air distribution have been im-

proved compared to the 3-series

Double cabin filters (fine and coarse filter) are fitted

The heating and ventilation system is available in three variants:

– heating system with manual water valve

– electronic temperature control

– climate unit with electronic temperature control and air conditioning

The air conditioning system can be set to admit 10% or 100% fresh-air supply

The twin ventilation fans are installed outside the cab to lower the in-cab noise

level

An auxiliary heater is optional equipment

– airborne auxiliary heater to warm the cabin air (sleeper cabs)

– waterborne auxiliary heating to heat the engine and coolant, as well as the cab,

via the standard heating system (R-cabs)

– short-stop heater to warm the cab via the standard heating system, utilising the

residual heat in the engine

Tinted single-glazed windows as standard

Side windows available with double-glazed tinted glass, giving a lower noise level

and far less cold down-draughts along the door sides, particularly noticeable at

temperatures below –5

Transparent powered roof hatch standard on Topline cabs, optional on other

versions

Comfort and ergonomics

Cab suspension points spaced far apart for added stability

Broad, comfortable entry steps

Optional courtesy lights for entering

The cab is wider and longer inside than previous day cabs, offering more side-

ways space and more legroom (30-50 mm)

New driver's and passenger's seats in the following versions:

– Luxury seat, air-suspension with double-jointed backrest and various

adjustments

– Medium seat, air-suspension with electronic height control

– Medium seat, air-suspension with mechanical height control

– Medium seat without suspension

Seat heating is standard

Ventilated padding in the seat cushion and backrest

Upper section of Luxury seat's backrest can be folded forwards to make a flat

table

Slide-away passenger seat optional on R sleeper cabs – can be moved the whole

way from the rear wall to the instrument panel, offering standing room for

changing clothes behind the seat or a rest area for the co-driver

Generous cab dimensions – 250 cm at the rear – offers space for a wardrobe

behind the driver

The standard bed measures 70x200 cm and is made in three sections to improve

access to the storage compartments below the bed

The storage compartment on the driver's side is also accessible via a hatch on

the outside.

An upper bed measuring 62x195 cm is optional on the sleeper cab

Low, modulated noise level: the engine is audible, but tiring noises have been

minimised

Wind rush noise has been reduced with the use of external sealing strips

New gear lever: short throw, with light, distinct action

New type of gear linkage with a sturdy gaiter attached to the cab floor for lower

noise penetration

New pedal box with suspended accelerator pedal

Modular dashboard follows the design principles of the 3-series

Cruise control operated via a control in the stalk to the left of the steering wheel

Optional adjustable steering wheel (20 angle, 60 mm height)

Column stalks move with the steering wheel when it is adjusted

Optional passenger seat armrest

Improved anti-theft protection with more secure steering column lock

One-key system for the starter and door locks with a key that is difficult to copy. If

the wrong key is used, the lock simply spins around and cannot be opened

Several alternatives for radio and communication equipment, 12 and 24V power

supply at several points in the cab

Optional refrigerator for the centre console

Comfortable entry with foldaway bottom footstep and wide steps

140 mm wider cab makes room for a 150 mm deep clothes locker on sleeper cabs

Exterior storage compartment on R sleeper cabs 

Interior lighting

Main lighting via a roof-mounted lamp on each side, with an integrated spotlight

Optional spotlight above the windscreen for illumination of the instrument panel

Reading lamp beside each bed

Topline cabs feature two adjustable reading lamps for the upper bed, which can

also be operated from the driver's and passenger's seats

Optional courtesy lights recessed in door panels 

Topline – the new high-roof cab

Raised roof offers full standing height inside, even on top of engine tunnel

Generous interior space with many practical features

90 cm wide upper bed located at the front edge of the cab, above the windscreen

Upper bed folds away to increase space

Lower bed measures 70x200 cm as in the standard cab

Foldaway ladder provides access to the upper bed without getting in the way of

the lower bed

Remote control for lighting, central locking, power roof hatch and parking heater

from upper bed 

Service and accessibility

Scania After Sales Services engineers participated in the development of the 4-series from the beginning, in order to build optimum service accessibility into the design from the very outset.

One factor vital to accessibility is the design of the noise-suppression equipment. On the 4-series, the cab's lower section and the front of the chassis have been designed so that they effectively encapsulate the engine and thus function as noise barriers. Some of the noise barriers move out of the way when the cab is tilted, while others remain fixed to the frame without in any way impairing accessibility.

Mudguards and wheel housings are among the components that remain attached to the chassis when the cab is tilted. The obvious benefit is that the mechanic escapes drips of dirty water if the truck has been driven in the rain. The front mudguards are in two parts and can be lifted off for improved accessibility.

Daily maintenance checks are conducted via hatches in the front. The upper part of the grille opens. The cab corners are hinged and can be opened.