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Protect your investment and have your Audi or VW undercoated to prevent rust and corrosion. A must for long term ownership and resale value.
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What is undercoating?
Undercoating is corrosion resistant product that is applied to the undercarriage of your vehicle.
It adds a barrier to protect against rust and corrosion. Adding a protective undercoating is the least expensive way to ensure your Audi or Volkswagen will be free of rust and corrosion for the lifetime of ownership. New Hampshire winters are not easy on your vehicle. Leaving your vehicle untreated is a guarantee for long term corrosion issues. Undercoating also adds great resale value to your vehicle as well.
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Where is the undercoating applied?
Audi and Volkswagen vehicles are engineered to a higher standard than many other brands. From the factory, they’re well-built and less prone to rust compared to many American-made vehicles. That said, even the best cars can benefit from added protection—especially in harsh New England conditions.
At Reflex Tuning, we apply undercoating to specific areas where we’ve historically seen issues. This includes:
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Removing plastic fender liners, which often trap moisture, dirt, and debris
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Cleaning those areas thoroughly before applying product
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Coating all exposed steel components on the underside of your vehicle
This also includes many nuts, bolts, and suspension components—particularly the alignment adjustment points, which are known to seize or corrode over time.
Getting your alignment checked annually isn’t just about tire wear—it also helps prevent those critical adjustment points from freezing up.
As part of our New Vehicle Service, we go a step further:
We actually remove and treat the alignment adjustment bolts, ensuring long-term protection against corrosion before they ever have a chance to seize.
Frequently asked questions
🛡️ What products do you use?
We exclusively use New Hampshire Oil Undercoating (NHOU) products. As a local business ourselves, we love supporting other high-quality New Hampshire brands—and after extensive testing, we can confidently say that NHOU offers the best undercoating solutions available today.
NHOU products are trusted nationwide and are known for their superior protection against rust and corrosion.
We use two different product types, depending on the age and condition of your vehicle, to ensure the best possible results.
NHOU BOSS WAX® Mil-Spec Hybrid – A semi-permanent, oil-based rust protection that cures to a drip-free, matte-black finish—ideal for vehicles with light rust.
NHOU® OIL UNDERCOATING – Engineered for vehicles with any level of rust
💰 How much does undercoating my Audi or VW cost?
If you have a used vehicle, we’ll need to see it in person to provide an accurate estimate. Every car is different—pricing depends on how much prep work is required before applying the undercoating.
If you have a new vehicle, that’s the best time to apply undercoating. There’s less preparation involved, and you’ll get the most long-term protection.
We also offer a New Vehicle Service Package, which includes undercoating and more—designed to protect your investment right from the start.
🔁 How often does the undercoating need to be applied?
With NHOU’s Hybrid undercoating, your vehicle receives a semi-permanent barrier against rust and corrosion. The need for touch-up applications depends on the condition of the vehicle at the time of the initial application.
For newer or rust-free vehicles, Hybrid may last several years before needing reapplication.
Vehicles with existing rust, however, may require annual touch-ups, especially before winter.
At Reflex Tuning, we inspect your undercoating at no charge during regular service visits. As part of our digital vehicle inspection, we’ll include detailed photos of your chassis so you can see the current condition for yourself.
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