Procedures

03 - Service Procedures

Tires, Checking Condition, Wear Pattern, Pressure and Tread Depth

• General Information

• Tires, Checking Condition

• Tires, Checking Wear Pattern

• Tire Tread Depth, Including Spare Wheel, Checking

• Tire Pressure, Checking and Correcting

Special tools, testers and auxiliary items required

• Tire filling unit (VAS 5216)






General Information

CAUTION!
• For safety reasons, all tires on the vehicle should be of the same make and tread design.

• For vehicles with all-wheel drive, the tires on the vehicle must be of the same make and tread design. Otherwise the center differential may be damaged.

• Tire inflation pressure table applies to normal tires, for all tire sizes installed at factory.

• Note that the inflation specifications refer to the air pressure of cold tires. Do not reduce tire pressure when the tires are warm.

• Tires pressures for the relevant model are on a label attached to the inside of fuel tank flap, or on driver's side B-pillar.

• Adapt tire pressure corresponding to load.

• Spare tire receives highest tire pressure

Winter tires

• Important information on the recommended winter tires can be found in => Wheel and Tire Guide - Current Models 44 Recommended Winter Tires.

• For winter tires, tire inflation pressure must be increased approximately 0.2 bar.



Tires, Checking Condition

CAUTION!
If damage is discovered, the tire must be examined to determine whether a new one must be installed.

Tests during delivery inspection:

- Check tire tread and side walls for damage, if necessary remove any foreign material, such as nails or screws.

Tests during inspection service

- Check tire tread and side walls for damage, if necessary remove any foreign material, such as nails or screws.

- Check tire treads for cupping, feathering, one-sided tread wear, porous side walls, cracks, cuts, and rim damage.



Tires, Checking Wear Pattern

The wear pattern of the front wheels can be used to assess whether a check of the track and camber is necessary:

• Feathered edges of the treads may indicate faulty toe adjustment.

• One-sided tread wear is mostly caused by faulty camber.

If such wear patterns are found, determine the causes by checking the wheel alignment (repair measure).



Tire Tread Depth, Including Spare Wheel, Checking

- Check tread depth

Minium tread depth: 1.6 mm

• This value may vary for different countries due to different legislative regulations.

• The minimum tread depth is reached when the tires have worn down level with the 1.6 mm high tread wear indicators - arrows - positioned at intervals around the tire.





• If the tread wear is close to the wear limits, inform customer and note findings on the repair order.



Tire Pressure, Checking and Correcting

Gasoline engines

1.8 L / 132 kW.

2.0 L / 85 kW.

2.5 L / 110 kW.

2.0 L / 147 kW FSI.

Diesel engines

1.9 l / TDI.

Gasoline engine





Gasoline engine









Gasoline engine





Diesel engine