SAN DIEGO
6AM - 11:30PM • MOBILE SERVICE •
Call or Text (619) 876-1271
EZ Car Keyz California bear mascot
Fast Response Locksmith

1999 Audi S4
Key Replacement - Save vs Dealer in San Diego

No Spare Needed | We Make Keys On-Site

Available
1999 Audi S4 Remote Flip Key
Remote Flip Key

All keys lost is our specialty. While the dealer would require a tow and days of waiting, we arrive at your location and have a new key cut and programmed on the spot.

CA BSIS LICENSE LCO#6792
Zero Keys OK No Towing Made From Scratch
Fast Response15-25
min arrival
100+reviews
See why they skip the dealer113KSubscribers
1999 Audi S4 key replacement cost - EZ Car Keyz Escondido CA
Marco Levy • EZ Car Keyz 🔥
Licensed Mobile Locksmith • San Diego, CA
15+
Yrs Exp
1999 Audi S4 key replacement cost - EZ Car Keyz Escondido CA
Key specialists
All Keys Lost?
We make new keys from scratch - no existing key needed
Fixed pricing
No Tow Required
We come to wherever the car is sitting
Fast mobile service
Emergency Service
Available 7 days a week, 6 AM to 11:30 PM
619 Special
10% OFFCODE:EZ-619-2026

🔥 Emergency key, plus 10% off 🔥

Applies to all-keys-lost situations
REDEEM (619) 876-1271

1999 Audi S4
Key Options

Dealer-grade key for a fair, honest price

Remote Flip Key
Most popular Audi key typeMost Popular
1999 Audi S4 Remote Flip Key MYT8Z0837231
FCC IDMYT8Z0837231Part #4D0837231PButtons4BatteryCR2032Frequency315 MHzRemote StartNo
✓ In Stock · Programmed On-Site
Key
1999 Audi S4 Key
FCC IDPart #ButtonsBatteryFrequencyRemote StartNo
✓ In Stock · Programmed On-Site
Budget 1999 Audi S4 key fob options from EZ Car Keyz Escondido CA
Skip the Dealer Markup
Professional key, honest rate
Budget 1999 Audi S4 key fob options from EZ Car Keyz Escondido CA
🔧 PRO TIP
The 1999 Audi S4 uses a remote flip key with a transponder chip that has to be registered to the car's immobilizer. The fob itself runs a CR2032, which is easy to overlook when the remote range gets spotty or the buttons feel unresponsive. Before assuming the remote electronics are dead, pull the battery and check the contacts inside the housing -- these older Audi flip shells crack at the pivot point over time, and a hairline crack can let moisture into the battery compartment. The flip mechanism pivot is the first thing to wear on daily-driver keys. If the blade is getting loose and flopping around when you pull it from your pocket, the chip and remote board inside are very likely still good. A shell swap and fresh blade cut is the actual fix, not a full key replacement.
Related services: Ignition Repair · Smart Key

No Audi Key? See Your Best Option

No key? See which option gets you driving faster

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
All keys lost is no problem for us
Book Service (619) 876-1271

1999 Audi S4 Remote Flip Key Replacement - Fast, Affordable & Professional

Out in East Valley, Escondido, I got a call from someone who had already been to the Audi dealer. The short version: they were quoted a price that made her pause, and the service advisor mentioned something about sourcing the part. She drove home with the same broken key she came in with.

Her 1999 Audi S4 had a flip key where the pivot was so worn the blade would barely lock into position. She was pinching it closed between two fingers every time she went to start the car. The housing had a crack running up toward the button panel, and one of the four buttons had started to sink in and not spring back right.

I pulled the internals out on the hood of my van. The transponder chip and the remote board were both intact. No corrosion on the contacts, battery terminals looked clean, and the chip read correctly on my programmer. Everything that actually talks to the car was fine. The housing was just done.

Shell swap, fresh blade cut to her vehicle, and a quick function check on all four buttons. The flip mechanism on the new housing locked in with that satisfying click that the old one had stopped making years ago. She tested it herself, standing in her driveway. Locked, unlocked, confirmed the car started without complaint.

The dealer wanted her to go through a full key replacement process. What she actually needed was about forty-five minutes and a competent swap. The chip inside these old Audi flip keys is built to outlast the plastic around it.

Save vs the Dealer on Your Audi S4 Key

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

Get Pricing (619) 876-1271 Text Us
BSIS Licensed Locksmith - California License LCO#6792
BSIS Licensed
CA Bureau of Security & Investigative Services
NASTF Certified Automotive Locksmith - Vehicle Security Professional
NASTF Certified
National Automotive Service Task Force
Fully Insured Locksmith - Hiscox Liability and Vehicle Damage Coverage
Fully Insured
Liability & vehicle damage coverage
Google Guaranteed Locksmith - Verified and Background Checked
Google Guaranteed
Verified & backed by Google
Also serving: Bear Valley · Downtown Escondido · East Valley · Kit Carson Park Area

Audi S4 Rapid Response, Done Right

Rapid response in the field

Affordable 1999 Audi S4 key replacement by EZ Car Keyz in Escondido CA
Remote Flip Key | Rapid On-Site Service
1999 Audi S4 | San Diego
Affordable 1999 Audi S4 key replacement by EZ Car Keyz in Escondido CA
1999 Audi S4 Remote Flip Key
1999 Audi S4
Remote Flip Key | Rescue Key
Estimated arrival time to Escondido
Priority ETA
Rapid Arrival
Available Today
Service location Escondido
Escondido
Help Is Close
619 Area
Same-Day Keys (619) 876-1271

Real Emergency, Real Relief

Stranded drivers who found relief

K
Kim S.
Jul 2025
★★★★★

“This is the only locksmith anyone should ever call. I am still shocked at how fast he arrived and the price was hundreds less than other quotes I received. Honest, professional, and extremely efficient.”

Google Review
B
Bradley B.
May 2024
★★★★★

“Locked out on a weekend night and everyone else wanted $300+. EZ Car Keyz sent Roman late at night for much less. He worked for over an hour and did not give up until the door opened. They even made a new key on the spot.”

Yelp Review
M
Marianne S.
Dec 2022
★★★★★

“I had two Subaru key fobs made and Marco provided excellent service. He stayed persistent through multiple part orders to make sure everything was correct. Very thorough, punctual, and great communication throughout.”

Google Review
Watch real savings, real jobs62KFollowers
Customer review showing savings on 1999 Audi S4 key by EZ Car Keyz Escondido CA
“Real savings, real reviews.”
Customer review showing savings on 1999 Audi S4 key by EZ Car Keyz Escondido CA
5.0 out of 5 - Based on Over 100 five-star Google reviews
Best Price (619) 876-1271

Audi S4 Mobile Service FAQ

Real costs, no dealer surprises

Do I have to go to the Audi dealer to get a replacement key for my 1999 S4?
No. A qualified mobile locksmith can handle cutting and programming a replacement remote flip key for the 1999 S4 on site. A lot of Audi owners default to the dealer because general locksmiths sometimes turn down Audi work -- the immobilizer system on late-1990s Audis requires specific equipment, and not every shop carries it. The dealer route typically involves ordering by VIN, waiting for parts, and booking a separate programming appointment. With EZ Car Keyz, it's one visit, done where the car is parked.
What exactly is a remote flip key and what does it do on this car?
How long does the dealer actually take for an Audi key replacement?
Can I just buy a replacement flip key shell online and swap it myself?
My 1999 S4 starts fine but the remote lock and unlock buttons stopped working. Is the key dead?
Questions? Call (619) 876-1271

Audi S4 Key Service Areas

All-keys-lost service in every city

📍San Diego County
San Diego County service area map
619 LOCAL LOCKSMITH
need a key? 🔑
San DiegoChula VistaOceansideEscondidoCarlsbadEl CajonVistaSan MarcosEncinitasNational CityLa MesaSanteePowayCoronado
Affordable 1999 Audi S4 locksmith service area in San Diego County CA
Emergency dispatch throughout San Diego County

Emergency service available in all listed cities

Get Help Now (619) 876-1271
Filmed on Location
Audi S4 car key replacement video
113K+ Chose EZ Car Keyz

No Audi S4 Key? We Start From Scratch

All keys gone? We handle it from scratch. No dealer tow, no week-long wait. Just call.

Best price 1999 Audi S4 car key replacement by EZ Car Keyz Escondido CA
Need a key?
Available 6AM - 11:30PM | 7 Days a Week
Find Us
Find Your
Car Key
San Diego