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2004 Audi A6
Key Replacement - Save vs Dealer in Ventura County

Licensed & Insured | Mobile Key Experts

Available
2004 Audi A6 Remote Flip Key
Remote Flip Key

With over 1,000 verified Google reviews and every major industry certification, EZ Car Keyz is the locksmith trusted by families, businesses, and fleet managers throughout the area.

CA BSIS LICENSE LCO#6792
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min arrival
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2004 Audi A6 lost key replacement options from EZ Car Keyz Santa Barbara CA
Marco Levy • EZ Car Keyz 🔥
Licensed Mobile Locksmith • Oxnard, CA
15+
Yrs Exp
2004 Audi A6 lost key replacement options from EZ Car Keyz Santa Barbara CA
Key specialists
BSIS Licensed
Licensed by the California Bureau of Security
Fixed pricing
NASTF Certified
National Automotive Service Task Force approved
Fast mobile service
1,000+ Reviews
Five-star rated on Google, Yelp, and BBB A+
805 Special
10% OFFCODE:EZ-805-2026

🔥 Certified pro service, 10% off 🔥

OEM keys & certified programming included
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2004 Audi A6
Key Options

Dealer-grade key for a fair, honest price

Remote Flip Key
Most popular Audi key typeMost Popular
2004 Audi A6 Remote Flip Key MYT8Z0837231
FCC IDMYT8Z0837231Part #4D0837231PButtons4BatteryCR2032Frequency315 MHzRemote StartNo
✓ In Stock · Programmed On-Site
Remote Flip Key
2004 Audi A6 Remote Flip Key KR55WK45022
FCC IDKR55WK45022Part #ButtonsBatteryFrequencyRemote StartNo
✓ In Stock · Programmed On-Site
Transponder Key
2004 Audi A6 Transponder Key
FCC IDPart #BHU66T6ButtonsBatteryFrequencyRemote StartNo
✓ In Stock · Programmed On-Site
2004 Audi A6
FCC IDPart #ButtonsBatteryFrequencyRemote StartNo
✓ In Stock · Programmed On-Site
2004 Audi A6 replacement key fob with no original from EZ Car Keyz Santa Barbara CA
Skip the Dealer Markup
Professional key, honest rate
2004 Audi A6 replacement key fob with no original from EZ Car Keyz Santa Barbara CA
🔧 PRO TIP
The 2004 Audi A6 (C5 platform) runs the Megamos 48 transponder chip, sometimes called the ID48 or TP08. The immobilizer is the Immo3 system tied to the instrument cluster, not a separate BCM2 like later MLB cars. Your flip key shell is part number 4D0837231P with FCC ID MYT8Z0837231 and a CR2032 battery. If the remote stops locking but the car still starts, that is the remote module, not the immobilizer. Two different systems in one key. Swap the CR2032 first.
Related services: Ignition Repair · Smart Key

Licensed Audi Key Pro vs Dealership

Licensed, certified, and reviewed - compare the credentials

EZ Car Keyz
EZ Car Keyz
Dealership
Average Cost
✓ $$
✕ $$$$
Location
✓ We come to you
✕ You drive there
Wait Time
✓ 20-45 min
✕ 2-5 days
Same-Day
✓ Yes
✕ Rarely
All Keys Lost
✓ No problem
✕ Tow required
OEM Quality
✓ Yes
✓ Yes
EZ Car Keyz wins 5 out of 6
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Book Service (805) 790-8162

2004 Audi A6 Remote Flip Key Replacement - Fast, Affordable & Professional

A pharmacist who works graveyard shifts called me from her condo complex near La Cumbre Plaza in Santa Barbara around 11pm. Her only flip key for a 2004 A6 had stopped working that morning. She limped through the day using the blade in the door and holding the fob right against the steering column to get the immobilizer to read the weak ID48 chip signal. By the time she got home, even that trick quit.

She had already looked up Audi dealer hours. Earliest appointment was four days out, and she would need a tow to get it there since the car would not start at all. Four days with no car on a night shift schedule.

I pulled up to her garage, connected my programmer to the OBD-II port, and ran the all-keys-lost procedure for the Immo3 system. On C5 A6 models the security data lives in the instrument cluster. The tool reads the SKC (secret key code), clears the old key data, and writes the new Megamos 48 chip to the immobilizer. Cut the blade on site to match the HU66 keyway.

The whole job, including the remote sync for all four buttons, took about 35 minutes under her garage lights. She watched most of it from her doorway holding a cup of coffee. No tow truck. No waiting days. Just a new working flip key for a fraction of what the dealer route would have cost her in time and money combined.

Save vs the Dealer on Your Audi A6 Key

Get your key for hundreds less than the dealer. Same quality, same result, better price.

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BSIS Licensed Locksmith - California License LCO#6792
BSIS Licensed
CA Bureau of Security & Investigative Services
NASTF Certified Automotive Locksmith - Vehicle Security Professional
NASTF Certified
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Fully Insured
Liability & vehicle damage coverage
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Also serving: Downtown Santa Barbara · Eastside Sb · Funk Zone · Hope Ranch

Audi A6 Rapid Response, Done Right

Rapid response in the field

Lost 2004 Audi A6 key replacement by EZ Car Keyz in Santa Barbara CA
Remote Flip Key | Rapid On-Site Service
2004 Audi A6 | Ventura County
Lost 2004 Audi A6 key replacement by EZ Car Keyz in Santa Barbara CA
2004 Audi A6 Remote Flip Key
2004 Audi A6
Remote Flip Key | Pro Grade Service
Estimated arrival time to Santa Barbara
Proven Timing
Rapid Arrival
Available Today
Service location Santa Barbara
Santa Barbara
Insured Service
805 Area
Same-Day Keys (805) 790-8162

Why Audi Customers Trust Us

Licensed, certified, and proven

E
Erick
Nov 2025
★★★★★

“A+ service at an even better price. Tim was a lifesaver. I lost my original and only key for my Audi and he was willing to come to my location at 8pm the same day. He worked fast, communicated clearly, and made sure everything worked before leaving.”

Google Review
H
Hunter P.
Jul 2025
★★★★★

“I called over 40 locksmiths trying to get a key made for my Audi A6 and nobody could do it. Tim made it easy, fast, and affordable. He showed up with a smile and got the job done without any stress. Absolute wizard with keys.”

Google Review
E
Esteban S.
Dec 2025
★★★★★

“My Chevy key snapped while I was running errands in North Oxnard. He removed the broken piece from the ignition, cut a new blade, programmed the transponder, and tested everything thoroughly. The whole job was smooth and professional. Best automotive locksmith I have used.”

Google Review
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Customer review after losing 2004 Audi A6 key - EZ Car Keyz Santa Barbara CA
“Real savings, real reviews.”
Customer review after losing 2004 Audi A6 key - EZ Car Keyz Santa Barbara CA
5.0 out of 5 - Based on Over 1,000 five-star Google reviews
Best Price (805) 790-8162

Audi A6 Mobile Service FAQ

Real costs, no dealer surprises

I lost my only key for a 2004 Audi A6. Can you make a new one without a tow to the dealer?
Yep. All-keys-lost on the 2004 A6 is a standard mobile job for me. The C5 platform uses the Immo3 immobilizer system with the security data stored in the instrument cluster. I read the SKC through the OBD-II port, program a new Megamos 48 (ID48) transponder chip, cut the HU66 blade on site, and sync the four-button remote. Old keys get erased so they cannot start the car. The whole thing runs about 30 to 45 minutes at your location. No tow needed, no appointment line, no waiting days for the dealer to fit you in.
Is a mobile locksmith cheaper than going to the Audi dealer for a replacement key?
Does your price include the key, cutting, and programming, or are those separate charges?
My 2004 A6 key remote stopped locking the doors but the car still starts. What is going on?
Can I buy a 2004 A6 flip key online and program it myself to save money?
Questions? Call (805) 790-8162

Audi A6 Key Service Areas

Licensed and insured in every city

📍Ventura County & SB
Ventura County service area map
805 LOCAL LOCKSMITH
need a key? 🔑
Santa Barbara
Santa BarbaraETA 30-35 min
Goleta
GoletaETA 30-35 min
Isla Vista
Isla VistaETA 30-35 min
Montecito
MontecitoETA 25-30 min
Carpinteria
CarpinteriaETA 20-25 min
Ojai
OjaiETA 20-25 min
Ventura
VenturaETA 10-15 min
Santa Paula
Santa PaulaETA 20-25 min
Fillmore
FillmoreETA 25-30 min
Oxnard
OxnardETA 10-15 min
Port Hueneme
Port HuenemeETA 10-15 min
Camarillo
CamarilloETA 15-20 min
Moorpark
MoorparkETA 25-30 min
Simi Valley
Simi ValleyETA 30-35 min
Thousand Oaks
Thousand OaksETA 20-25 min
Santa BarbaraGoletaMontecitoCarpinteriaOjaiVenturaSanta PaulaFillmoreOxnardPort HuenemeCamarilloMoorparkSimi ValleyThousand Oaks
Emergency 2004 Audi A6 locksmith service area in Ventura County CA
Emergency 2004 Audi A6 locksmith service area in Ventura County CA
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Audi A6 car key replacement video
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Trust the Pros for Your Audi A6 Key

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