Function and Form Audi TT 4WD (1998-2006) 8N Type 5 Air Suspension
Overview
Function and Form Type 5 Air Struts for the Audi TT 4WD (1998-2006). Manufacturer part number: 55100398-4W. Type 5 is Function and Form's air strut, built around double-bellows air springs. The features, specifications and fitment below are taken from the manufacturer's published data, so you can confirm this is the right part before you order.
Key Features
- Track inspired adjustable air suspension
- Heavy-duty double-bellows air springs
- High-strength aluminum and steel construction
- Reinforced mounts for precision and durability
- Compatible with Air Lift 3P/3H management systems
- Pre-tuned for handling and comfort balance
Vehicle Fitment
| Year | Make | Model | Detail |
|---|---|---|---|
| 1998 | Audi | TT 4WD | |
| 1999 | Audi | TT 4WD | |
| 2000 | Audi | TT 4WD | |
| 2001 | Audi | TT 4WD | |
| 2002 | Audi | TT 4WD | |
| 2003 | Audi | TT 4WD | |
| 2004 | Audi | TT 4WD | |
| 2005 | Audi | TT 4WD | |
| 2006 | Audi | TT 4WD |
Fitment is limited to the vehicles listed above. Submodel, drivetrain and chassis details matter, so check them against your vehicle.
Technical Specifications
| Damping | 32-Step adjustable damping spectrum |
|---|---|
| Ride Height Adjustable | Fully threaded damper body |
| Front Top Mounts | CNC machined hard anodized aluminum (select models) |
| Lower Mounts | Vehicle specific lower mounts |
| Sway Bar Links | Adjustable sway bar end links included for select models |
| Front Top Mount | Front Top Mount: OEM |
| Rear Top Mount | Rear Top Mount: OEM |
| M/F | Coupé Quattro |
Questions about fitment? Call or text PMD at 904-755-8360 with your year, make, model and trim before you order.