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REPAIR MAINTENANCE OPERATION OF MOTOR VEHICLES
Volkswagen Passat B6 (from the year 2004)

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Volkswagen Passat B6
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Volkswagen
Passat B6
Operation and maintenance of car
Engine
Transmission
Chassis
Wheels and tires
General information on wheels and tires
Technical conditions for the conversion of wheels and tires
Indexes of speed of tires
Markings on the disk
Composite wheels
Depreciation and divergence tires
Wear high-speed tires
Tyre service
Evenly worn tires
Measure the tread depth
One-sided wear
Diagonal uneven wear
Tire rolling noise
Balancing
Radial and lateral palpation of wheels and tires
Minimization
Lateral withdrawal of the car
Eliminating slip
Damage to tires
The design of the radial tire
Loss of air pressure in the tires
Damages of tires because of errors at mounting (assembly damages)
Marking the tire sidewall
Shift of wheels
General provisions for CO regulation of the axle (axle measurement), the Passat
Correction of the camber of the front axle
Adjusting the camber of the rear axle
Adjusting the toe of the rear axle
Adjusting the toe of the front axle
Passat with the 2006 model year
Checking the paintings wear, pressure, tread depth of tires
Front suspension
Rear suspension
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diagrams
 


Hit Counter by Digits


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One-sided wear



The reason for the unilateral wear in many cases driving style, but sometimes incorrect wheel alignment.

Increased lateral wear

Example of lateral tire wear
Fig. 4.6. Example of lateral tire wear


Side wear, often in combination with rubbing on the edges of the tread and thin cuts, always occurs when the tire works at extremely high angle of slip and, therefore, "tinder" in the road surface (Fig. 4.6).
Fast riding abound turns results in particular areas on the outer shoulders of the tire to increased wear.
Rounded outer tire shoulder with a high degree of wear of the outer tread blocks talking about fast driving in turns. Such wear is obtained due to the appropriate driving style.
To optimize the driving performance chassis is tuned to certain parameters toe and camber. If the tires are operated at non-specified conditions, must be regarded as a one-way, and increased wear.
Especially wrong parameters axle measurement may lead to more one-sided wear, besides increasing the risk of uneven wear.

Negative toe
The distance between the front wheels - A is greater than distance B behind (C direction).

The convergence or toe-

Toe
Fig. 4.7. Toe




The convergence or toe-
Fig. 4.8. The convergence or toe-



The distance between the front wheels of A is less than distance B behind (C direction).
To avoid a unilateral tire wear, care must be taken so that the wheel alignment is always within tolerance automaker. Most often, the angles of the wheels deviate from the nominal values due to external influences, such as a hard contact with the curb when parking.
When axle measurement can determine whether the wheel alignment is within tolerance, or they must be adjusted.

Changes to the chassis
Using "kit truncated springs" and / or alloy rims, VW is not permitted, it can lead to the angles of the wheels, which differ from the inherent structure.
Even if the angles of the wheels at the time when the vehicle is stationary axle measurement is normal, due to changes in the height and position of the wheels in motion can change the nature of the suspension movement of the wheels.
Thus, uneven wear is preprogrammed.

Depreciation center of the tread
This wear pattern is shown on the driving wheels of cars with powerful engines, which are often long distances at high speed.
At high speeds, the tire diameter due to centrifugal force is increased in the middle of the tread is greater than at the edges. Consequently, the driving force is transferred to the road surface from the middle portion of the tread. This fact is reflected in turn in the character wear.
Particularly noticeable such wear is shown on wide tires.
By reducing the air pressure in the tires to avoid such deterioration will not succeed.

ATTENTION
For safety reasons, in any case, do not reduce the air pressure in the tire below a prescribed.

More or less uniform wear can be achieved through the timely transposition wheels leading to the non-driven axle.

The increased tread wear

The increased tread wear
Fig. 4.9. The increased tread wear


A typical pattern of wear of tires mounted on the drive wheels of the car with a powerful engine (Fig. 4.9).
Longer wear of the tread the middle is a consequence of tire loads arising due to the centrifugal force of the tire and transmitting the driving force to the road surface.




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Diagonal uneven wear

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