Otto Explains — Paintless Dent Repair
What Is Paintless Dent Repair (PDR)?
Short Answer
Paintless dent repair (PDR) is a way of removing dents without filler or repainting: a technician gently reshapes the panel back to its original form, usually from behind, so the factory paint is kept. It suits dents where the paint isn't cracked and the metal isn't stretched or sharply creased, such as many parking and hail dents. Dents with damaged paint, sharp creases or no access need traditional bodywork instead.
How does paintless dent repair work?
The technician works the dent out from behind the panel with special tools, reaching it through existing openings or by removing trim, lamps or insulation rather than drilling holes. Specialty lights show the shape of the dent while it is worked. Where the back of a panel can't be reached, such as along a roof rail, the dent can be pulled from the outside with an adhesive tab, known as glue pulling. Because nothing is filled or painted, the original paint stays on the car.
Which dents are suitable for PDR?
The key condition is unbroken paint. PDR suits dents where the paint over the dent hasn't cracked and the metal hasn't been stretched or sharply creased, provided tools can reach the damage. That covers many parking dents, hail dents and soft dents on body lines. Before starting, technicians inspect the paint closely, sometimes under magnification, because cracked paint rules the method out.
When is PDR not the right repair?
Manufacturer guidance lists dents with cracked paint, dents that would need holes drilled or structural parts removed, and sharp dents in contoured areas, on panel edges or in tight spots where glue pulling hasn't worked. Dents like these, and dents in stretched metal, need traditional bodywork and repainting. Some can't be fully corrected without replacing the panel. Where a dent has broken the paint, it is best repaired before corrosion starts in the exposed metal; Otto's guide to rust treatment explains why.
Does the panel material matter?
Yes. Aluminium behaves differently from steel and needs specific technique, and manufacturers set their own rules. Tesla, for example, accepts PDR for cosmetic damage as long as no holes are drilled for tool access, but requires creased or kinked aluminium and high-strength steel parts to be replaced, and repaired aluminium to be checked for micro-cracks. General Motors advises against drilling holes or removing structural parts for PDR and says doing so may void its corrosion warranty. The vehicle manufacturer's repair information decides what is allowed on a given panel.
Will the dent disappear completely?
On a small, round dent with intact paint and good access, PDR can give a complete or near-complete result. On larger, sharper or harder-to-reach dents, the realistic outcome may be a significant improvement rather than complete removal. An assessment of the specific dent is the only way to know.
Where does AutoTronix BodyWorks come in?
AutoTronix BodyWorks lists paintless dent repair and dent removal among its published services. BodyWorks assesses each dent before recommending PDR, traditional repair or a combination. It is coming soon for direct booking; you can already send an enquiry. If you are checking dents on a car you plan to buy, a pre-purchase inspection looks at the body for signs of earlier repairs as well.
Common Questions
- Does PDR damage the original paint? Done correctly on a suitable dent, it shouldn't: the method exists to keep the factory paint. That is why the paint is checked for cracks first, and why dents with cracked paint go to conventional repair instead.
- Can hail damage be repaired with PDR? Often, yes, when the paint is intact and the panels can be reached from behind or pulled from outside. Each dent still has to meet the same conditions: unbroken paint and metal that isn't sharply creased or stretched.
- Can I fix a dent myself with a suction or glue-pull kit? General Motors writes its PDR bulletin for professional technicians, not do-it-yourselfers. Whether a dent suits PDR at all depends on the paint, the metal and the access, so an assessment first is the safer route.