2006-2019 Bentley Flying Spur Antenna Amplifier: Fixing Poor Radio Reception
This guide covers the common failure symptoms, replacement costs, and crucial compatibility details for the 2006-2019 Bentley Flying Spur antenna amplifier.
- The most important thing to know is that this antenna amplifier does NOT require programming or a dealer visit for installation.
- The primary symptom of failure is poor AM/FM radio reception, such as static or signal fading.
- Verify the part number before buying a used unit. Use 3W5035225K for 2013-2019 models and check for 3W5035225H or 3W0035507B on 2006-2012 models.
- A used OEM amplifier is a reliable and very cost-effective repair, saving hundreds of dollars over a new part.
Symptoms of a Failing Antenna Amplifier
When the antenna amplifier in a 2006-2019 Bentley Flying Spur begins to fail, the signs are almost exclusively related to radio performance. You will not typically see a check engine light or receive a specific warning message on the dashboard.
- Poor AM/FM Radio Reception: This is the most common symptom. Radio stations that once came in clearly may now be filled with static, crackling, or hissing sounds.
- Stations Fading In and Out: The signal may be strong one moment and gone the next, especially while driving. This can be more pronounced in areas with tall buildings, hills, or when driving under bridges.
- Reduced Number of Available Stations: The radio may struggle to pick up any but the strongest, most local stations. Auto-scan functions may fail to find stations you could previously tune into.
- AM Reception is Worse Than FM (or vice-versa): Sometimes, the amplifier may fail in a way that only affects one band. Poor AM reception, in particular, can be a sign of a bad antenna ground or a failing amplifier.
Pro Tip: Before assuming the amplifier is bad, check the basics. Ensure the car's main and secondary batteries are fully charged, as low voltage can sometimes cause strange electronic issues in Bentleys. Also, inspect the visible antenna connections if accessible, as corrosion can mimic a failed amplifier.
Buying a Used 2006-2019 Flying Spur Antenna Amplifier
A used OEM antenna amplifier is an excellent, cost-effective solution for this problem. Because this specific module does not require programming, it is a simple plug-and-play replacement. Here’s what to look for when buying a used unit.
Verify the Part Number
Matching the part number is the most critical step. While they may look identical, different numbers can mean different internal components or frequencies. There are two primary part numbers for this generation:
- 3W5035225K: This is the correct part for the second-generation Flying Spur, typically covering model years 2013-2019. Some sources indicate it may also supersede the earlier part number.
- 3W5035225H or 3W0035507B: These are common part numbers for the first-generation Flying Spur, covering model years 2006-2012.
Always confirm the part number from your original unit before ordering a replacement. They are often located in slightly different positions but serve the same function.
Physical Inspection
When your used part arrives, inspect it carefully before installation:
- Check for Corrosion: Look at the electrical connector pins. They should be clean and bright, not green or white with corrosion.
- Inspect the Casing: Look for any signs of water damage, such as water lines, mineral deposits, or a swollen case. Trunk-mounted electronics are susceptible to water intrusion from leaking seals.
- Examine the Connectors: Ensure the plastic connector housings are not cracked or broken.
Programming and Installation Notes
Important: This antenna amplifier module does NOT require any programming, coding, or flashing after installation. It is a direct swap component.
Do not confuse this simple amplifier with other, more complex audio components in the vehicle. The main infotainment head unit (the screen in the dash) and the primary audio amplifier (especially the premium Naim amplifier) are VIN-coded to the car for anti-theft and proper function. Replacing those units requires a dealer or specialist with the correct diagnostic tools. The radio antenna amplifier, however, does not have this requirement, making it an easy DIY or independent shop repair.
Replacement Overview
The antenna amplifier is located in the rear of the vehicle, typically in the trunk area. While the exact location can vary slightly by year, it is generally found behind the trunk trim panels on the driver's or passenger's side, often near the C-pillar or under the rear parcel shelf. Accessing it requires:
- Disconnecting the vehicle's battery as a safety precaution.
- Carefully removing trunk liners and trim panels to expose the vehicle's electronic components.
- Locating the old amplifier module by matching its shape and part number.
- Disconnecting the electrical connectors and unbolting the module from its bracket.
- Installing the new module and reconnecting everything in reverse order.
This job is feasible for a DIY mechanic who is comfortable with removing interior trim panels without causing damage.
Cost Comparison
Replacing the antenna amplifier with a used OEM part offers significant savings compared to a new part from a Bentley dealer.
| Part Source | Estimated Cost |
|---|---|
| New OEM (Dealer) | $450 - $700 |
| New Aftermarket | Not commonly available |
| Used OEM (Recycled) | $60 - $100 |
| Shop Labor | $150 - $250 |
Frequently Asked Questions (FAQ)
Does a replacement antenna amplifier need to be programmed by the dealer?
No. The antenna amplifier for the 2006-2019 Bentley Flying Spur is a plug-and-play component and does not require any programming, coding, or dealer visit after installation.
Where is the antenna amplifier located?
It is located in the trunk area. You will need to remove the trunk lining and side trim panels to access it. It is typically mounted to the body structure near a C-pillar or under the rear deck.
Will this part fix my poor satellite radio or GPS reception?
No, this specific amplifier is generally for the AM/FM radio signal. Satellite radio and GPS use separate, dedicated antennas and sometimes their own amplifier modules. If your issue is only with satellite radio or navigation, you likely have a problem with a different component.
Is part number 3W5035225K the only one that fits?
For 2013-2019 models, 3W5035225K is the primary part number. For earlier 2006-2012 models, you may find 3W5035225H or 3W0035507B. It is always best to match the part number from the unit you are replacing to guarantee compatibility.
Technical Specifications
OEM Part Numbers: 3W5035225K 3W5035225H 3W0035507B
Boosts AM/FM radio signals. Typically located in the rear of the vehicle.
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.
- Bentley Flying Spur: