A Guide to the 1996-2001 Audi A4 Power Antenna Assembly
Is your Audi A4's radio antenna making a grinding noise, or is it stuck up or down?
- Listen for the motor; if it runs, you may only need a cheap mast replacement instead of a full assembly.
- The most common failure is the plastic toothed cable inside the mast, not the motor itself.
- Aftermarket brands like URO Parts offer a complete, affordable solution if the entire unit needs replacement.
- There are no recalls or TSBs from Audi for this specific part on the B5 A4.
Is Your Power Antenna Making a Racket?
If you own a 1996-2001 Audi A4, you're likely familiar with the sound of the power antenna. A grinding, clicking, or whirring noise from the rear of the car when you turn the radio on or off is the most common sign of failure. This usually means the antenna is about to get stuck for good. The problem is almost always the flexible, toothed nylon cable attached to the antenna mast. Over time, this plastic cable becomes brittle, and the teeth strip or break, leaving the motor unable to push the mast up or pull it down.
Mast vs. Full Assembly
Before buying a whole new unit, check if your antenna motor is still working. Turn your radio on and off and listen for a whirring sound in the trunk area. If you hear the motor running but the mast doesn't move, you might only need to replace the mast, which is much cheaper. If you hear nothing at all, the motor has likely failed, and you will need to replace the entire power antenna assembly.
Choosing the Right Aftermarket Part
When replacing the entire power antenna assembly on your A4, the main options are a new OEM (Original Equipment Manufacturer) part from the dealer or an aftermarket part. Given the age of the vehicle, an aftermarket assembly is a popular and cost-effective choice.
URO Parts is a common brand available for this repair. Aftermarket brands like URO focus on providing a functional replacement at a lower cost than the original dealer part. For a component like a power antenna, which is not critical to the vehicle's safety or performance, an aftermarket unit is a reasonable choice for many owners. While OEM parts often have a reputation for higher quality materials and perfect fitment, a new aftermarket assembly is a complete, ready-to-install solution that resolves the common failure points of the original 20+ year-old unit.
Pro Tip: Clear Out Broken Pieces
If you are replacing only the mast, be aware that sometimes a piece of the old nylon cable can break off and remain inside the motor housing. This will prevent the new mast from retracting fully. If this happens, you will need to remove the motor assembly and open its case to clean out the broken plastic fragments.
Cost of Replacing the Audi A4 Power Antenna
| Part Type | Estimated Cost |
|---|---|
| New Aftermarket Assembly | $69 - $76 |
| New OEM Assembly | $250 - $400+ (estimate) |
| Aftermarket Mast Only | $15 - $40 |
| Shop Labor | $120 - $200 |
Frequently Asked Questions
Can I just cut the antenna and leave it?
You can, but you will have very poor or no radio reception. You would also leave a hole in your fender, allowing water to enter the trunk area, which can cause rust and electrical problems. It is best to replace the unit or at least seal the hole properly.
Is replacing the whole antenna assembly difficult?
It is a straightforward job for a DIYer with basic tools. Access is through the trunk lining. The process involves removing some trim, unplugging two cables, and unbolting the assembly from the fender and chassis. It typically takes about an hour.
Why is my new antenna not going all the way down?
This usually happens for one of two reasons. First, a piece of the old plastic drive cable is still stuck inside the motor assembly, blocking the new one. Second, the new mast may need to cycle up and down a few times to properly seat itself.
Are there any recalls on the 1996-2001 A4 power antenna?
No, there are no official recalls or Technical Service Bulletins (TSBs) from Audi or the NHTSA specifically for the power antenna on the 1996-2001 Audi A4.
Technical Specifications
OEM Part Numbers: 8D0035501 4B0051531
Motorized, telescoping AM/FM radio antenna assembly mounted in the driver-side rear fender.
We Have This Part in Stock
The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
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