Noile modele BMW, sau ce mai putem cumpara de la BMW Options

[alex230ro]

Suna dubios titlul dar altceva nu mi-a venit in cap.So aveam in gand ca peste vreo 2 ani sa iau un BMW mai nou pana atunci ma pun la punct si cu banii.Nu mica mi-as fost mirarea cand am inceput sa caut variante.O buna parte din motorizarile BMW de astazi au probleme-mai mari sau ai mici.Sa incepem:
N42/N43 scurgeri ulei probleme cu distributia si intinzatorul de la distributie oricum nu erau in targetul meu dar asa ca idee
N54- celebrul 3 litri biturbo probleme cu pompa de combustibil si ceva probleme la turbine
N52- spre susprinderea mea am inteles ca sunt probleme cu tachetii hidraulici
asta la benzina
La dizel situatia e destul de grava desi din nou nu se afla pe lista mea
Avem celebrul model N47 care are destul de multe cazuri de distributie rupta mai nou se aud cazuri si de M57 cu distributia rupta-desi aici nu cred ca e ceva grav.Intrebarea ar fi:ce model BMW v-ati cumpara din cele noi avand un buget de max15.000 euo

[alex230ro]

I know that dilemma! I started off as an E34 guy, learned to drive on E46 M3's, then became an E30 guy, became an instructor in my E30, then got my E36.

Let's talk about how these cars feel around corners, then a brief description of why.

E34, when driving around the car feels good and grippy, though heavy. At the limit the car understeers, but when finagled through sudden lifting or trail braking, the rear end gets loose and the car feels loose and easily directable. When it oversteers, it breaks loose predictably and slowly. It also can maintain grip with some slip angle of the rear tires. Why? The E34 has an independent, semi trailing arm rear suspension. The camber and toe changes as the wheel travels up and down in the rear.

E30, It feels grippy and easily tossable. It is also a light car. The 318i has an M42 engine, which has a smooth linear torque band without too much power. The suspension design is similar to the E34, so it has similar handling characteristics. Since the car is lighter it tends to understeer less at corner entry. When the car has a little suspension work done (HR race springs and Bilstein sport shocks) the car is pretty much neutral everywhere. With stock 318i HP, it has no trouble putting power down, and E30's love slip angle in the rear. The fact that the grip level drops off so slowly in an E30 / E34, gives the driver confidence to push the limit of the car.

E36, it feels like a cross between the E30 and E34 in terms of handling (Initially ). This is mainly due to the weight increase. At the limit, the E36 chassis understeers...a lot. This can be remedied with suspension work and a square tire setup. Once you get the understeer out of the chasiss, you notice that the rear end is very grippy...until it breaks loose, much more suddenly than the E30 and E34 chassis. This is because of the multi link rear suspension design. (Thank you Mercedes for releasing the 190E). Camber still changes with wheel travel, but toe stays the same (or changes much less). This provides more ultimate grip (believe it or not), at the sacrifice of predictability, and (lower) grip levels with slip angle present in the rear tires. In short the E36 has a better rear suspension design, and is a faster car because of it, but it is harder to drive at the limit.

E46, has a very similar suspension design to the E36 (almost identical), but a stiffer chassis. It is slightly heavier, but can be slightly faster given the same power to weight ratio. The E46 driver does feel more disconnected from the car than in the E36 chassis, and the E36 feels more disconnected than the E30. However each chassis has progressively more potential as they find newer and better ways to engineer things...And new ways to screw things up!


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