The maintenance cost of the five valve Jetta car is higher than that of the two valve car, which is

The structure of the 20-valve is complex, there are many parts, and the trip computer is special, and the maintenance is a bit expensive.

The English on the back of the two-valve car is gix

The English on the back of the five-valve car is GTX

You can't tell it from the outside, it's all the same.

Each cylinder has several valves.

Two-valve EFI (8V): Each cylinder has an intake valve and an exhaust valve, a total of 2*4=8 valves, so the scale is 8V

Five-valve EFI (20V): Each cylinder has 3 intake valves and 3 exhaust valves, a total of 5*4=20 valves, so the scale is 20V (also known as 20-valve engine).

The old Jetta King (discontinued in 2003) was a 20V engine; High horsepower and fuel economy (the disadvantage is that the control circuit is troublesome).

Later, the basic model of the new Jetta-Spring Companion avant-garde (including the Bora Sutar Golf) was an 8V machine; Simple, reliable and durable, share it with your friends.

Since it is 5 valves, 3 into 2 rows and 2 valves is single in and 2 in a single row, one camshaft is enough. The valve train had to use a double camshaft form, which was complex and increased the maintenance cost. The timing belt of the 2-valve car can be used for 100,000 kilometers, and the 5-valve belt generally needs to be replaced at 60,000, otherwise it is easier to fold.

In addition, there are 5 valve cars with air flow meter and 2 valves, I hope it can help you!

The difference between the two-valve and the five-valve Jetta sedan is: different models, different production times, and different engines.

First, the use of different models.

1. Shengyun two-valve Jetta: Jetta partner.

2. Five-valve Jetta: 5-valve EFI GTX Jetta King.

Second, the production time is different.

1. Two-valve Jetta: produced after 2001.

2. Five-valve Jetta: the last generation of production and 2001.

Third, the engine is different.

1. Two-valve Jetta: an engine with two valves per cylinder.

2. Five-valve Jetta: The engine with five valves per cylinder is used for matching.

At present, basically the Jetta cars that came out after 97 years are two-valve engines, whether it is diesel or gasoline. Two valves and five valves mean: the number of inlet and outlet valves in each of the engine's studios!

The meaning of the second valve is that there is only one intake and one exhaust valve in the combustion chamber. The five valves seem to be 2 intake and 3 exhaust. . . As for the appearance, in fact, the difference between the 2 valves and the 5 valves is relatively large except for the cylinder head, and it seems that the difference between the other parts is not very big, and they are all small differences. . .

The five-valve cylinder head is relatively large, the intake branch pipe is relatively long, and some of them are connected by rubber. The intake branch of the second valve is made of all-aluminum, which is slightly smaller than the five-valve... You can see the spark plugs and the fuel injectors...

I guess it may be the landlord who wants to ask which car is better... In fact, each engine has its advantages and disadvantages, as far as the current market is concerned, the two-valve is more popular than the five-valve, a little more advanced, easy to maintain, the probability of failure is small, and the accessories are easier to buy than the public. . .

The five and two valves of the Jetta refer to the number of valves per cylinder. On the model of the Jetta, it can be distinguished, the lower right corner of the trunk is marked, and the car with i is a two-valve car, such as GIX, GIF, CIF, etc. With T are five-valve cars, such as GTX, GT, etc.