VOLKSWAGEN VENTO 1992 (01) PDF Document

Conversions of wheels and tyres on your VOLKSWAGEN VENTO 1992 can only be carried out under specific conditions. Please observe the following points:

Legislative Conditions:

If the size of the wheel and tyre, including the load index and speed symbol, is listed in the vehicle’s General Type Approval (GTA) or EU operating permit/type approval, this combination can be fitted without any issues.

It is not necessary for the specific wheel and tyre combination listed in your registration certificate to be fitted. Any combination approved in the vehicle’s GTA or EU operating permit is acceptable.

Conversions recommended by VOLKSWAGEN AG may require inspection and an entry in the vehicle documents if they are not included in the original type approval.

Unless the wheels and/or tyres are included in the relevant vehicle type approval, the vehicle may no longer meet road traffic regulations if converted.

Technical Conditions:

The wheel and tyre combinations and conversions listed in the provided PDF refer exclusively to genuine Volkswagen disc-type wheels.

Approval of wheel and tyre combinations from the accessories trade is not possible with the parts certificate included in the PDF.

Tubeless radial tyres may only be fitted to rims that have a safety hump feature on the shoulder.

If the listed wheel and tyre combinations are used, the associated tyre inflation pressures must be strictly adhered to. These pressures can be found on a sticker inside the fuel tank flap or in the vehicle’s tables.

Sufficient clearance between the wheels/tyres and parts of the wheel housing, suspension, and braking system must be ensured under all operating conditions.

Unless stated otherwise, snow chains may only be fitted to the drive wheels. On all-wheel drive vehicles, only the front wheels may be fitted with snow chains.

The sidewall of a tyre on your VOLKSWAGEN VENTO 1992 contains various identification markings that provide important information. Here is a breakdown of what these markings mean:

1. Size code: e.g., 205/55 R 16

2. Position of TWIs: Tread Wear Indicators.

3. Manufacturer: Trade name of the tyre maker.

4. Construction: “Radial” for radial cord direction and “Tubeless” for tubeless tyres.

5. Load capacity index / speed rating: e.g., 91 H.

6. Specified direction of rotation/installation for tyre.

7. Maximum permissible load: Data for North America.

8. Maximum permissible tyre pressure: Data for North America.

9. Number of plies: Information on plies in the tread and sidewalls and the material used.

10. E number: Approval number indicating the tyre fulfils European guidelines.

11. Manufacturer code / date of manufacture (DOT): Identification for the plant, tyre size, model, and the week/year of production.

12. DOT: Department of Transportation, indicating the tyre fulfils US standards.

13. Marking for Brazil.

14. Marking for China.

15. Country of origin.

16. Safety reference for use or fitting of tyre.

17. Relative expected service life: Abrasion resistance based on a US standard test.

18. Rating of wet-braking traction: A, B, or C, according to a US test.

19. Rating of temperature resistance: A, B, or C, according to a US test.

20. Identifying tyres with run-flat properties.

21. Tread pattern name.

Explanation of Tyre Dimensions

Using an example like “195/65 R 15 91 V”:

The maximum load and speed for your VOLKSWAGEN VENTO 1992’s tyres are indicated by codes on the tyre sidewall.

Speed Rating / Maximum Speed

The speed rating is a letter following the size designation (e.g., “T” in 185/65 R14 84 T). It indicates the maximum permitted speed for the tyre. The selected tyres must have a maximum permitted speed greater than the maximum speed of the vehicle.

Load Rating Code / Load Index (LI)

The load rating is a number included in the size designation (e.g., “91” in 195/65 R 15 91T). It provides information about the maximum load the tyre can bear.

Proper storage is essential to maintain the condition and longevity of the tyres for your VOLKSWAGEN VENTO 1992.

Storage Room Conditions:

The storage area should be:

– Dark

– Dry

– Cool

– Ventilated

Important Precautions:

Stored tyres must not come into contact with fuel, oil, grease, or chemicals under any circumstances. These substances can damage the tyre material through chemical reactions that are not always visible, leading to dangerous situations when driving.

Storage of Tyres:

Complete wheels (Tyres on rims):

– These can be stored flat, stacked one upon the other.

– Ensure the tyres are clean and dry before storing.

– The inflation pressure should be increased to a maximum of 3 bar.

Tyres without wheels:

– These are best stored standing vertically.

– If stored stacked for long periods, they can be pressed together, making them difficult to fit later.

– If storing vertically, it is recommended to turn them every 14 days to avoid developing flat spots.

The age and condition of the tyres on your VOLKSWAGEN VENTO 1992 are critical for safety and performance.

Determining Tyre Age:

The tyre age can be determined from the DOT designation on the sidewall, which includes the production date.

For tyres made up to 31.12.1999:

Example: DOT ….. 5 0 9 <

– The first two digits (50) represent the week of production (50th week).

– The third digit (9) is the last digit of the production year (1999).

– The “<" symbol indicates the 1990s.

For tyres made from 01.01.2000:

Example: DOT ….. 0 1 0 0

– The first two digits (01) represent the week of production (1st week).

– The last two digits (00) represent the production year (2000).

Recommendation on Tyre Age:

It is recommended not to use summer and winter tyres that are older than 6 years. The original properties of the tyre deteriorate due to the aging process, with winter tyres especially losing their adhesion properties over time.

When to Renew Tyres:

Tyres on your VOLKSWAGEN VENTO 1992 must always be renewed when:

– The legal minimum tread depth of 1.6 mm is reached.

– There is visible mechanical damage.

Using a Spare Tyre:

When fitting new tyres, the spare tyre may also be used if it is in flawless condition and not more than 6 years old. Combining a spare tyre that is several years old with new tyres can have an adverse influence on car handling.

For driving in winter conditions, it is recommended that your VOLKSWAGEN VENTO 1992 be equipped with winter tyres. Here are some basic rules and considerations:

All tyre sizes listed in the vehicle documents can also be used as winter tyres.

The handling characteristics of the vehicle may be affected by the use of winter tyres. You must adapt your speed to the changed handling characteristics and road conditions.

To achieve the best possible handling, winter tyres must be fitted on all wheels.

The suitability of winter tyres with less than 4-5 mm of tread depth for winter operation is limited. Some countries legally require a minimum tread depth of at least 4 mm.

It is recommended that winter tyres be replaced after no more than six years. The special “winter properties” of these tyres decline with age, regardless of how much they are used.

The tyre pressure for winter tyres must be 0.2 bar more than the applicable pressure for standard tyres, but not more than 3.5 bar.

Snow chains must be fitted to the driven wheels only. On most four-wheel drive vehicles, they may only be used on the front wheels.

It is not possible to use snow chains with all wheel and tyre combinations. Check the vehicle tables in the parts certificate for notes on this.

If no particular type of snow chain is specified, small-link chains may be used. These chains, including the fastener, must not protrude more than 15 mm beyond the wheel’s tread and the inner wall.

The maximum speed permitted by law when driving with snow chains is 50 km/h.

Snow chains should be removed when there is no snow on the road. Driving with chains on clear roads adversely affects handling, causes unnecessary stress on the tyres, and leads to above-average wear on the chains.

Several factors influence a tyre’s service life to varying degrees. The driving style is the most important factor.

Driving Style:

Speed: Higher speeds cause more wheel slip and wear. For example, driving at 180 km/h can cause 9 times the wear of driving at 100 km/h.

Braking: Most wear occurs during braking. Heavy braking causes significantly more wear than gentle braking.

Acceleration: Driving off with wheel spin can cause 100-200 times the wear of driving off gently.

Cornering: Driving through curves at higher speeds causes greater wear. Doubling the cornering speed can increase wear 16-fold.

Maintenance:

Tyre Pressure: Low tyre pressure causes greater deformation, increased heat, and higher wear. A tyre with 40% of the specified pressure may only last for 25% of its normal life.

Environment:

Road surface

Ambient temperature and climate

Vehicle:

Weight

Dynamic toe and camber settings (wheel alignment)

To correctly measure the tyre tread depth on your VOLKSWAGEN VENTO 1992, follow these instructions:

The tread depth should be measured in the main tread channels, which are the deepest points of the tread.

Do not measure at the TWIs (Tread Wear Indicators). These are raised bars in the grooves that indicate the legal minimum tread depth.

Measure the tread depth at the points where the tyre is worn most heavily.

The position of the TWIs can be identified by a marking on the shoulder of the tyre, such as “TWI”, a triangle symbol (Δ), or the manufacturer’s logo.

The TWI bars have a height of 1.6 mm, which is the minimum tread depth required by German law. Different values may apply in other countries.

One-Sided Wear: This is often caused by driving style (e.g., fast cornering) or incorrect wheel alignment (toe and camber settings). Driving fast on roads with many curves causes increased wear on the outer shoulder. Incorrect toe-in or toe-out is a primary cause.

Outer Shoulder Wear: This can be caused by fast cornering or unsuitable use of self-levelling adjustments on pneumatic suspension systems (if equipped).

Wear in Middle of Tyre: This pattern is often found on the driven wheels of high-performance vehicles driven frequently at high speeds. Centrifugal forces cause the tyre diameter to increase more in the middle of the tread, leading to increased wear in that area. It cannot be countered by reducing tyre pressure.

Diagonal Washout: This appears as diagonal wear spots at an angle of approx. 45° and occurs almost exclusively on the non-driven wheels. It is intensified by high toe-in values and incorrect tyre pressure. If detected early, the wheels should be fitted on the drive axle.

Saw-Tooth Wear: This is a stepped wear pattern on individual tread blocks, more pronounced on non-driven wheels. It is caused by uneven deformation of the tread blocks and can lead to increased tyre noise. It is considered a normal wear pattern, particularly with a careful driving style.

If you are experiencing vibrations or the vehicle is pulling to one side, here are the troubleshooting steps.

For Vibrations:

Vibration can be caused by tyre wear, which creates slight imbalances. It is recommended to have wheels and tyres balanced at least twice during the tyre’s service life.

1. Conduct a Road Test: Before balancing, perform a road test to determine the nature of the vibration and the speed range in which it occurs.

2. Pre-Balancing Checks:

Ensure tyre pressure is correct.

Check that the tread is not one-sidedly worn and is at least 4 mm deep.

Inspect tyres for damage (cuts, foreign bodies, etc.).

Ensure wheel suspension, steering, and shock absorbers are in perfect condition.

3. Balancing Procedure:

Clean all contact surfaces of the wheel and balancer.

Use a proper centring system (like VAS 5271) to clamp the wheel.

Check for radial and lateral runout. If runout exceeds tolerance (0.9 mm radial, 1.1 mm lateral), perform a “match mounting” by rotating the tyre on the rim to find the best position.

Balance the wheel to 0 grams. No more than 60 grams of weight per tyre should be used.

If the Vehicle Pulls to One Side:

This is often caused by tyre “conicity” (a slight taper in the tyre carcass).

1. Initial Checks:

Check all suspension components for damage.

Check and correct tyre pressure.

Check tyres for damage, even wear, and correct tread depth. Tyres with deeper tread should be on the front axle.

Ensure all tyres are of the same type, manufacturer, and tread pattern.

Perform a road test on a level, straight road with no crosswind.

2. Strategic Wheel Rotation (for non-directional tyres):

If the vehicle pulls to one side, interchange the front wheels.

Perform another road test. If the vehicle now pulls to the other side, the issue is with one of the front tyres. If it pulls to the same side, the issue is likely with the rear tyres or alignment. If it drives straight, the problem is solved.

Follow the detailed diagnostic flowchart in the PDF for further steps, which may include interchanging front and rear tyres or reversing a tyre on its rim.

3. Strategic Wheel Rotation (for unidirectional tyres):

If the vehicle pulls to one side, interchange the front and back wheels on the same side.

If it still pulls, the next step is typically to renew one tyre on the front axle, then the other, and finally check the wheel alignment.

To ensure wheels are properly and safely secured on your VOLKSWAGEN VENTO 1992, follow these instructions for changing or fitting wheels.

Preparation:

Check to ensure that the contact surfaces on the brake disc are free of corrosion and dirt.

Check to ensure that the contact surface and centring seat on the inner side of the wheel (rim) are free of corrosion and dirt.

The concave seats in the wheel bolt holes and the threads of the wheel bolts must also be free of corrosion, dirt, oil, or grease.

Check that wheel bolts can be easily screwed in by hand. Damaged, badly corroded, or difficult-to-remove wheel bolts must be renewed.

Fitting Wheels:

1. When fitting the wheel, screw in all wheel bolts uniformly by hand.

2. Tighten the wheel bolts in a diagonal sequence to approximately 30 Nm.

3. Lower the vehicle to the floor and tighten all wheel bolts diagonally to the specified torque using a torque wrench. Do not use an impact driver when screwing in the bolts.

The following table lists the recommended summer tyres for the VOLKSWAGEN VENTO model years 1992 to 1998.

The following table lists the recommended all-season tyres for the VOLKSWAGEN VENTO model years 1992 to 1998.

The following table lists the recommended winter tyres for the VOLKSWAGEN VENTO model years 1992 to 1998.