Mercedes-AMG GLA 45 S 4Matic + as a performance flagship cars, equipped with the most powerful in the history of inline four-cylinder turbo engine, of course, you have to match a high-performance chassis, in order to allow motorists to enjoy security and stability under the conditions of the vehicle the ultimate fun. So at this stage we will GLA 45 S 4Matic + analysis engine and chassis while the vehicle is jacked up so users see your fill time.
The new high-performance turbine engine M139
Mercedes-AMG GLA 45 S 4Matic + M139 equipped with the new generation of turbo 2.0L four-cylinder inline engine, the engine having origin in the AMG Affalterbach headquarters, just to One Man, One Engine assembled by hand, industrial production lines while introducing 4.0 technology, so that both the delicate hand made and mechanization of excellent quality. In more advanced technology introduced, the engine body may burst 421hp / 6750rpm maximum horsepower and 500N.m / 5000-5250rpm maximum torque, and comprising 0 ~ 100km / h and 4.3 seconds acceleration speed 270km / h performance, whether Mercedes- AMG is how this achievement with the history of the strongest production four-cylinder engine? We will break down to you through depth profiling engine detail.
M139 series engines to power a new generation of AMG 45 heart to One Man, assembled in Affalterbach headquarters One Engine one person, one mechanic law.
Photo Valve cover, top two black exhaust end of the variable element is a lift Camtronic electronic control module.
For the performance of the press, two-track M139 engine fuel injection system, operated under smooth driving, oil is mainly direct injection 200bar; if the throttle depth exceeds 60 percent or more than the rotational speed of 3500rpm , then the second stage manifold injector injection pressure of 6.7bar system startup, in order to meet a greater power demand. In theIntake and exhaust efficiency, in particular the use inverted M139 engine design, i.e. the front intake, an exhaust turbine placed in the body after a manner, the result can be further shortened intake and exhaust paths to improve engine efficiency, intake front design is more effective to reduce the height of the pre-stage engine, aerodynamic optimization. Further, the engine intake and exhaust M139 are all adjustable timing design, and introduced to the exhaust end of the variable lift system, thus it may be under high speed, through the overlap timing, early intake opening, an exhaust delayed the case is closed, with increased exhaust lift angle is set, enhanced combustion efficiency, making it the largest in the history of the most powerful 421 horsepower.
The picture shows the cylinder head, two sets of right circular intake and exhaust mechanism is the variable valve timing system.
The picture shows the crankcase, waterways and built enclosed in a heated mechanical pump, to meet the cooling requirements of the engine M139.
M139 engine main parts are by weight aluminum material to build, in order to meet the performance requirements of the output end 421, particularly high strength of the engine body closed channel design, design and low temperature, temperature , three high-temperature cooling circuit system cooling requirements at the corresponding output power, low charge-air cooling system is used, and additionally introduced into the condenser heat strengthening efficiency, the temperature in the system is responsible for the cylinder head / engine oil and transmission oil cooling, and to temperature control management means to the piston to operate at optimum operating temperatures, the high temperature heat-based cooling places crankcase, crankshaft and oil under the optimum thermal efficiency can be fried extreme pressure performance; Further, both low and high temperature cooling system for an electronic mining pump design, may at any time on demand temperature; cooling the temperature can be perfused by about 6L of water per second is responsible for efficient mechanical pump.
for the ignition system components of black, silver two rows of nozzle assembly, the upper row of 200bar direct injection system, the exhaust manifold of 6.7bar pipe injection system.
MFA2 platform to strengthen the basis of
Mercedes-Benz’s new generation NGCC cars have evolved for a new generation MFA2 modular platform,Front suspension are taken MacPherson design, but when we GLA 45 S 4Matic + After jacking, it is difficult to find a general structural design and distinct GLA 200, comprising steel coil spring, the lower control arm, hub, anti-roll bar and so on all AMG exclusive use of reinforced parts. At the same time, AMG cars also have a negative inclination exclusive sports such as geometric design, in order to optimize the tonal shift, and provide flexible and agile driving performance. Further, the guard engines use high strength aluminum alloy member GLA 200 is replaced by plastic, to further enhance the rigidity of the front axle, then with additional steel support frame connected to the front axle sub frame and vehicle body control stabilized significantly strengthened and dynamic limits.
mining MacPherson suspension structure before, components are used to strengthen the peripheral parts, and there are specially tuned suspension geometry, the lower control arm with a lightweight aluminum so that more precise control directly.
between the front subframe and the vehicle body structure are connected by two steel rods, a rigid lifting purposes.
After the suspension part, GLA 45 S 4Matic + GLA 200 models and also significantly different, although both are four-link design, and in three transverse link is connected with a plurality of longitudinally rods, but in contrast, GLA 45 S 4Matic + includes more thick lower control arm and the longitudinal rod, Further, as the lateral inclination control arm set also using proprietary item number, and then with the more tough anti-roll bar axis, it has excellent high-speed cornering stability, and create higher lateral G value on the track. Similarly, GLA 45 S 4Matic + rear axle sub frame design with exclusive 4Matic + carrier whereby the rear axle differential, and a high-strength steel with additional link and the transmission link so that the suspension bridge, between the frame and the sub-body to form a tough very rigid, on the whole, GLA 45 S 4Matic + in the front and rear suspension have done a considerable degree of exclusive strengthen.
after 
is suspended by a sturdy longitudinal links plus three groups consisting transverse link, a unique four-link structure.
configuration complete rear vehicle body reinforcing structure exclusive sub lever and the frame, the rigid heights.
electrically controlled four-wheel drive with an electronic shock
The new GLA 45 S 4Matic + import more electronic technology, this is to enhance the performance limits of the vehicle, one of the most efficient way. In the suspended portion AMG Ride Control standard variable damping suspension, with Comfort, Sport, Sport + three kinds of damping hardness adjustment, with both daily and the demand driving excitation circuit, and the set of shock absorbers using Adaptive Damping System (ADS) design, can fine-tune the damping strength in milliseconds depending on road conditions, driving overall road feel even better.
In addition, GLA 45 S 4Matic + is also equipped with a powerful AMG Performance 4Matic + containing active four-wheel drive axle variable torque distribution system, which uses fully variable fully variable torque distribution designed to stimulate handling vehicle maximum potential, and dynamically customize adjusted depending on the torque output of the vehicle body rear axle outside wheels, in addition, but also to a 45 S 4Matic + at the time of cornering, CLA 45 S 4Matic + other models provide Drift mode mode flick . Coupled with exclusive AMG Torque Control Active rear axle torque control system can properly distribute torque front and rear output shaft, thereby allowing optimal tracking of vehicle ownership, make faster speed out of the corners, creating a more aggressive lap results.
silver central axle member that is AMG Torque Control multiplate clutch rear axle differential can be autonomously power output right and left wheels, more precisely informed by the best tracking force, so that not a trace of power waste into full speed out of the corners.
flattened chassis
Indeed, the GLA 45 S 4Matic + After jacking, you see the almost bare suspension structure, since the chassis has by OmoSo-called flat cover product design, effectively reducing the air resistance, according to experts said original, this design is not GLA 45 S 4Matic + unique, but all cars are used from top to bottom flattened chassis, so that each models have low drag and high power efficiency of performance. This flat design extends from the front to the middle of the body, even in the rear suspension control arm can also be seen planarized trim cover design, and in addition to reduce wind resistance, the other arm is provided with a front axle lower deflector flap can the air is directed to the front axle braking system help dissipate heat, which is more efficient design when driving or operating Road spur track.
seen on the right side of the flattened chassis cover tile (left side of the vehicle body by shooting has been removed so that the reinforcing structure partially rectified plate), except reduce wind resistance, high-speed stability, the degree of energy efficiency and quiet are set a credit.
Exclusive front lower control arm is provided with guide flaps, the front axle braking system allows proper heat dissipation; In addition, GLA 45 S 4Matic + the front axle 6-piston fixed caliper configuration and subjected to red paint design, whether the brake or eye-catching appearance are excellent.
in the high roof of the vehicle body, we can also study the way to the chassis materials. Usually well known front-engine front center of gravity of the vehicle, if the front and rear axle weight ratio of the poor, it is prone to severe understeer. This part of GLA 45 S 4Matic + particularly lightweight aluminum in the front axle, the front suspension control arm comprising, engine base, so that the front load reduction; aluminum while the front suspension also help to reduce the unsprung load, so that contraction of the coil spring more agile. While strengthening the structure at the rear of the many bars, steel material to build on a whim to deliberately increase the weight of the rear axle, thereby allowing the weight difference before and after shrink, so full of carefully arranged in order to enhance control limits come. After analyzing GLA 45 S 4Matic + engine and chassis, not difficult to find all the projects are based on reinforced as a priority, not only challenge the performance limit, but also the pursuit of mechanical durability, ensure the vehicle remains in a long and intense exercise drive reliability Therefore, GLA 45 S 4Matic + is not subject to a high-performance sports cars can be modified at any time at the track, for a familyPassionate gamers, this is the best of both worlds.
The rubber beneath the front flap can be varied by means of air pressure into the wind, but also the application of fluid mechanics.