OVERVIEW
Genuine VW/Audi flat washer, part number N-011-558-13. This original washer provides the specified bearing surface at its assigned fastening point. In the confirmed Audi applications below, it forms part of the front bumper-cover mounting hardware.
Technical details
- Original part number: N-011-558-13 / N01155813.
- Catalog washer dimensions: 8.4 x 15 x 1.6 mm.
- Flat circular washer with a central opening; supplied individually.
- Match the complete factory fastening arrangement and original hardware assignment.
- Bolts, nuts, grommets, brackets and bumper components are sold separately.
- The same standard washer number has additional factory uses; the table identifies confirmed mounting applications.
Common reasons to replace
Replace a missing washer, a distorted bearing surface, damage around the center opening or corrosion that prevents correct seating. This hardware may be needed when refitting a cover that was previously installed without the specified washer.
Inspect the surrounding mounting tabs, grommets and companion fasteners. A new washer cannot restore a broken tab, distorted bracket or stripped thread. Address damaged mounting components when correcting cover movement or poor alignment.
Installation and service notes
Confirm the mounting point and hardware stack before removal. Keep any original sleeves, spacers and companion parts in their assigned positions, and inspect the bearing surfaces before refitting.
Seat the washer flat and start the companion fastener by hand. Align the cover without using the bolt to force damaged mounting points together. Follow the vehicle-specific tightening specification and check alignment, secure mounting and surrounding clearance after installation.
Fitment
| Vehicle | Model years | Engine | Application and restrictions |
|---|---|---|---|
| Audi S6 | 2002 | 4.2L V8 gasoline | Avant wagon; front bumper-cover mounting washer. Left-side catalog mounting position; match original hardware. |
| Audi A6 quattro | 2001 | 2.8L V6 gasoline | C5; front bumper-cover mounting washer. Driver- or passenger-side position where N01155813 is assigned; match original hardware. |
| Audi A6 quattro | 2001 | 4.2L V8 gasoline | C5 sedan; front bumper-cover mounting washer. Driver- or passenger-side position where N01155813 is assigned; match original hardware. |
Confirm the original washer assignment and exact mounting position before ordering.