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Recently updated on September 30, 2023 at 10:52 am
[Update: 30.09.2023] This post was updatedto take more recent information into account. Many vehicle owners are not very enthusiastic about the idea of immediately investing in a new tire if there is minimal damage to the tread. Especially if you have installed a tuning rim. For example, if this is equipped with a Pirelli P Zero SC 305/25 ZR22 summer tire, then it will per tire sometimes €500 or more is due. And increasingly popular, even from the factory, are 23 or even 24 inch rims. And beyond that, you should always carry out a change axle by axle. Over €1.000 can quickly disappear. The question therefore legitimately arises as to whether and to what extent it is possible to patch the car tire. Can you do it yourself or do you need professional help? This is another question that comes to the forefront.
What is allowed and what are the advantages!
Patching a car tire yourself involves certain requirements. It is not always permitted by law, but rather defines in detail what is permitted and what is not. The requirements set out in the StVZO must be followed precisely in order to continue to participate in road traffic.
Puncture injuries, i.e. so-called drive-in damage, which are a maximum of six millimeters in size, can be repaired. The repair procedure is also prescribed. So-called combination repair bodies must be used. This is often heated raw rubber. And please note that you are only allowed to have tires repaired at the speed limit under 240 km / h. So the ZR tire mentioned at the beginning is CAN'T repairable. By the way, you can mend tires yourself. Although there are inexpensive repair kits available from specialist retailers, you should be aware of the risk that you carry with a car tire that you repair yourself.
Patch car tires
It is necessary that the tire is pulled from the rim to patch it. From the perspective of the legislature, this is not necessarily possible for a layperson. As a result, he assumes that the repair cannot be carried out properly and therefore regards the repair carried out himself as not permitted. You run the risk of it being noticed during the next general inspection or police check. It is therefore strongly advisable to have the tire repaired by a specialist in a workshop.
Advantages - tire patching!
The biggest advantage is certainly the cost savings compared to a new tire, which can cost several hundred euros each, depending on the brand quality. However, for marginal damage, you do not need to visit a workshop by law; you can repair it yourself within a few minutes using your skilled craftsmanship. The environment also benefits because you continue to use your tire and you no longer have to travel to a recycling center or a workshop. Also worth mentioning at this point is the valuable contribution you are making to nature.
How a tire is patched, what the cost!
Dismantling the rims is essential. If the tire is balanced, all balancing weights must be removed from the damaged area. Furthermore, cleaning and cleaning should be carried out, which is done by drilling out the area. Even if it cannot be prevented that the resulting hole in the tire is larger than the actual damage, the hole should be as small as possible in order to be able to clean it effectively. To patch it yourself, you will need raw rubber from a specialist retailer. This must be vulcanized with a vulcanizer. This will completely fill the drilled hole. The actual patch is now positioned on the inside of the wheel tread to definitively seal the damaged area. Now the tire is ready to be put back on the rim. If you have marked the balancing weights before repairing, this will save you having to rebalance them.
Tires must comply with the law!
However, keep in mind that you should make sure that the tire being patched complies with the law. If you go to a specialist it will cost a little more, but you won't have invested any effort or nerves in vain and will also save valuable time. It should be noted that patching is an inexpensive but temporary solution and you will still need a new tire. If you compare the costs of self-repair and professional help with your knowledge, you will find that the price difference is usually only a few euros. However, given that the professional repair complies with legal regulations, the difference that you have to pay more is quite acceptable. It is still advisable to check offers from different workshops, as there is a wide price range. This means you can choose the most suitable and best option for you.
Disadvantage of the breakdown assistance kit
Often cars have one Roadside Assistance Set in the trunk. After using tire sealants, professional repairs by a specialist company are no longer permitted for various technical reasons. This also applies to other emergency seals. You should therefore consider whether the use of such a means makes sense.
summarized the most important properties:
- Mending car tires is allowed
- the requirements of § 36, guideline 6 of the StVZO must be complied with (only damage caused by driving in, stab wounds with a maximum length or extension of 6 mm)
- Repair must be carried out with what is known as a combination repair body (heated raw rubber)
- Tires with a permissible speed of +240 km / h must not be patched
- Specialist retailers sell repair kits at a price of 15 to 20 EUR
- StVZO regards self-carried out repair of the tire as not permitted
- If you carry out repairs yourself, you bear the sole risk of a general inspection, police check or accident
- Small tire repairs save you having to buy a new tire
- marginal damage can be done yourself with a little manual skill (a visit to a car workshop is not necessary)
- further use of the tire after the patch saves waste
- From a qualitative point of view, a new tire makes more sense
- Costs- and environmental aspects speak for the patch
- Costs in a free workshop are included approx. 30 EUR
- over-the-counter repair kits cost approx. 20 EUR
When is the repair worthwhile and when not?
- it's worth it: if the tire has not been in use for a long time and has enough remaining tread depth
- it's worth it: if a temporary emergency repair has not yet been carried out on the tire
- it's worth it: if the damage was discovered shortly after it occurred
- it's worth it: if no suitable replacement tire is available
- it's worth it: if only certain areas are affected and the damage does not exceed a certain extent
- it's worth it not: if, for technical reasons, the second tire on the affected axle would also have to be replaced (often in vehicles with a tire pressure monitoring system, TPMS)
- it's worth it not: in some all-wheel drive vehicles where the manufacturer stipulates that the rolling circumference of the 4 wheels may only differ slightly (then all tires may even need to be replaced)
- it's worth it not: if you have driven for a long time with insufficient tire pressure and the tire has been further damaged as a result
The process for patching a tire yourself!
- Removing the tire from the rim
- Remove the balancing weights in the area to be repaired
- Clean the damaged area by drilling open (This makes the hole a little bigger)
- Patches, only with suitable material from specialist dealers (raw rubber)
- Vulcanize base material for use with a vulcanizer
- Completely fill the drilled hole
- Apply the patch to the inside of the wheel tread to seal it
- Put the tire back on the rim
- Re-apply balancing weights
Screw or nail in the tread? What to do?
- Gegenstand not remove but leave stuck (Hole remains closed, further damage from pulling out is avoided)
- Make an appointment in a tire workshop
- Check inflation pressure regularly by the deadline (PSI or bar? The units can be converted here!)
- Have a professional repair carried out
Info: What is the truth of the rumor that nitrogen in tires is much better than air? We did some research. More information on the topic Tubes is there in our little one Tire ABC!
Costs and options for repairing car tires
The Mend tires can be a cost-effective alternative to purchasing new ones, especially given the prices of high-quality tires used in combination with tuning rims. But when and how is patching allowed? The Repair tires According to the StVZO, it is permitted as long as certain conditions are met: The damage should be a maximum of 6 mm and combined repair bodies such as heated raw rubber should be used. High speed tires over 240 mph are not repairable. Even if Tire repair car costs If you can save money, doing it yourself carries risks. If not carried out properly, there is a risk of problems during general inspections or police checks. Therefore, professional help, for example, is necessary ATU, to prefer. The Tire repair costs vary, although workshop fees are often only slightly higher than self-repair kits. Finally, you should weigh up the advantages and disadvantages and, if necessary, check offers from different workshops.
Patching car tires: Summary of the costs and options:
Cost factors in tire repair
- Self-repair: With a tire repair kit, that up to 30 Euros costs, you can repair minor damage yourself.
- Professional repair: For a professional repair in a workshop, you should expect costs of around 40 Euros expected.
Tire repair options
- hole size: Repairing a tire is possible if the hole is in the tread lies and is smaller than 6 mm in diameter. Such damage is often caused by broken nails or screws.
- Repair techniques: The common method is this vulcanization, in which a rubber plug is pulled through the tire from the inside and then vulcanized to seal the hole.
Safety aspects when repairing tires
- Approved repair area: The repairs must be in the middle three quarters of the tread, the so-called “small repair area”.
- Specialist staff: A professional repair should only be carried out by qualified specialist personnel in a Car workshop be performed.
Driving with a patched tire
- Reach: With a patched tire you can usually get between 30 and 50 Kilometers drive, depending on the information in the Tire repair kit.
- StVZO: According to the StVZO It is not forbidden to travel with a repaired tire as long as the repair was carried out professionally.
Special tires and repair restrictions
- High speed tires: Tires designed for speeds above 240 km/h approved, may not be patched. Also the vulcanization is not recommended for such tires.
- Major damage: If damage is greater than 6 mm or if there is damage to the sidewall of the tire, repair is usually not possible.
Insurance and damage coverage
- Comprehensive insurance: If the tire is intentionally destroyed, this is the main cause Partial insurance for the damage, but the deductible should be checked in advance.
Of course that had not been the case.
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Thank you for the information about car tire repairs. My car's tires seem to be losing air, but I can't find the source of the problem I am going to look for an auto repair shop that can fix my car's tires.
A very clear and in-depth article on the subject of tire repair. I am sure you helped me with this. I now more or less know what to do. Because this information is exactly what I was looking for.
Thanks for pointing out the approximate costs. I found 2 nails in the front tire after a long drive and I'm not sure if it can be easily patched. The best thing I can do today is to go to a good tire service.