# How Car Modifications Affect Your Car Insurance in Germany [All blog posts](https://stayinsured.de/blog-subscription-page) [Material Insurance](https://stayinsured.de/material-insurance-blog) ## How Car Modifications Affect Your Car Insurance in Germany Feb 10, 2026 4 min ![](https://stayinsured.de/hubfs/Gemini_Generated_Image_jrvj23jrvj23jrvj.jpeg) Share # How Car Modifications Affect Your Car Insurance in Germany Germany has a rich automotive culture, and tuning cars is a big passion for many drivers. From turbocharged engines to paint jobs, personalisation is a form of expression and is becoming more and more popular. However, before you start modifying your vehicle, it's important to understand the legal implications and how it affects your insurance (failing to do so could leave you uninsured when you need coverage most). ## Car Insurance Basics in Germany Before making any changes to your car, you should become familiar with [car insurance](/vehicle-insurance) (Kfz-Versicherung) in Germany: Coverage Type German Name What It Covers Third-party liability Haftpflicht Covers damage you cause to others. This is legally required Partial coverage Teilkasko Protects against theft, vandalism, fire, natural disasters, and broken glass Comprehensive Vollkasko Includes everything above plus damage to your own car , even if you're at fault You can find further information about car insurance in our article You can find more detailed information about car insurance [in our full article here.](/material-insurance-blog/understanding-car-insurance-in-germany/) ## What Counts as a Car Modification? In Germany, even small changes can count as a modification under the law [(StVZO).](https://www.gesetze-im-internet.de/stvzo_2012/) Basically, if it's not exactly how your car left the factory, it's a modification. Even fun personal touches can count, so it's worth knowing what falls under the rules. Category Examples Performance tuning Turbochargers, engine remaps, sports exhausts Visual upgrades Custom paint, decals, spoilers, body kits Structural changes Suspension kits, non-standard rims, lowering Interior modifications Racing seats, custom infotainment systems Lighting Underglow, LED strips, non-standard headlights ## How Insurers View Modifications Insurers don't just see modifications as upgrades, they see potential risks. Changes can affect your coverage, premiums, and eligibility. ### 1. Risk Assessment Any modification raises the following questions for insurers: - Will the car be driven more aggressively? - Does it attract more attention from thieves? - Could the changes affect safety or reliability? These answers determine whether they'll insure you, and how much it will cost. ### 2. Impact on Premiums and Eligibility Modification Type Typical Impact Performance upgrades Significant premium increases Body kits and visual changes Moderate increases, theft concerns Interior upgrades Minor to moderate increases Unapproved lighting Could void your policy if you don't tell your insurer Some insurers may even refuse coverage if your car is heavily modified. ### 3. Undeclared Modifications = Serious Risk If you modify your car and don't inform your insurer: - Your policy may be voided - Claims can be denied - You could face legal consequences Always declare modifications to your insurer, even if you think they're minor. ## Legal Requirements: TÜV and ABE In Germany, most modifications need approval from the [TÜV (Technischer Überwachungsverein)](https://www.tuv.com/germany/de/)before they're street-legal. ### ABE (Allgemeine Betriebserlaubnis) Some parts come with an [ABE certificate](https://ilmberger-carbon.com/en/Wissen/ABE?srsltid=AfmBOorwd-gPP6ki9g26Lw_UBQ6y64qaTGUx_ShGwcpr4viPTUkQ-19u) , which is like a blanket approval. If a part has ABE, just keep the certificate in your car, it's usually all you need. ### TÜV Approval If a modification doesn't have ABE , you'll need a TÜV inspection and approval. Without it: - Your vehicle might not be allowed on the road - You could face fines if you're stopped - Your insurance could refuse any claims ## Need the right material insurance? Talk to an expert. Book consultation ## Modifications and Premium Costs Modifications change your vehicle's risk profile, which directly affects your car insurance premiums. Factor How It Influences Premium Increased power More speed = higher accident risk → higher premiums Visual customisation Flashy looks attract attention → higher theft risk → higher premiums Non-standard parts Harder/more expensive to repair → higher premiums Safety modifications Things like better brakes or airbags → may lower your premiums ## Insurance Options for Modified Vehicles ### Specialist Insurers Some insurers specialise in modified vehicles. Here's what they can offer: - They really understand what modifications mean for your car - They can offer coverage that's more flexible and tailored to your ride - However, keep in mind that depending on your modifications, premiums may still be higher. ### Classic Car Insurance If you've got a vintage ride or a heavily customised vehicle, classic car policies might be a better fit. They often offer: - Agreed value coverage, so you know exactly what you're covered for - Terms designed for non-daily drivers - More flexibility for unique or rare modifications ## Tips for Modified Car Owners ### 1. Declare Everything Even small changes count. Always let your insurer know about any modification, undeclared changes are the fastest way to get caught out when you need coverage most. ### 2. Keep Documentation Keep a clear record of all the necessary documents. H aving these on hand makes life easier if you ever need to make a claim: - ABE certificates for approved parts - TÜV approval documents - Receipts and installation records ### 3. Compare Quotes Not all insurers are the same. Some are much more modification-friendly than others. Take the time to get a few quotes, you might be surprised at the differences. ### 4. Work with Experienced Brokers Insurance brokers familiar with modified vehicles can help you find appropriate coverage and understand requirements better. ### 5. Ensure TÜV Compliance Before modifying your car, check whether it needs TÜV approval. Non-compliant modifications not only put your insurance at risk, they can also make your car illegal to drive. ## Key Takeaways Do Don't Declare all modifications to your insurer Hide changes to keep premiums low Get TÜV approval where required Assume small changes don't matter Keep documentation in your vehicle Ignore ABE requirements Compare specialist insurers Settle for the first quote ## Getting Expert Help Modifying your car can be exciting, but insurance implications shouldn't be an afterthought. At [Stay](https://stayinsured.de/), we help international residents find appropriate coverage for standard and modified vehicles. 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