Audi A4 key replacement

Get a spare-key price band

Enter your UK registration — we match make, model and year to our guide prices.

Spare-key guide

from £155–£330

Spare key while you still have a working one. All Keys Lost is quoted separately after we read your registration.

Look up your reg

Audi A4 key types

2001–2007 · Remote: typically a remote/flip key with lock-unlock buttons plus a transponder chip. Guide spare-key band £155.
2008–2012 · Semi Smart: typically a semi-smart fob: buttons on the key, often with a hidden emergency blade. Guide spare-key band £155.
2013–2015 · Smart: typically a proximity smart key that unlocks as you approach and starts with a button. Guide spare-key band £190.
2016–2023 · Smart: typically a proximity smart key that unlocks as you approach and starts with a button. Guide spare-key band £330.

Spare key vs All Keys Lost

The band £155–£330 is a spare key guide: you still have at least one working Audi A4 key. All Keys Lost (every key gone) needs extra security steps and is quoted individually after we read your registration.

Typical on-site time for a spare key is 45–60 minutes. We confirm blanks, frequency and any online tokens before work starts.

Key families on this model: Remote, Semi Smart, Smart.

What is specific to the Audi A4

B8 (2008–2015) is typically a flip remote; B9 (2015–) mixed flip and Kessy; later B9 facelift cars are smart-key. Same VW-group component protection as the A3 and Golf: a cloned fob is a bad idea. Blade is HU66 on older cars.

A4 Avant owners often need a second key for a partner. That is the cheapest job on this page — both keys present, 45 minutes on the driveway. All Keys Lost on a B9 is quoted after we see the registration.

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Frequently Asked Questions

How much is a spare key for an Audi A4? +

The published spare-key band is £155–£330 depending on year and key type. Enter your UK registration for a matched band. All Keys Lost is quoted separately.

How do I tell which Audi A4 key I have? +

Transponder keys have a chip and no buttons. Remote keys add lock buttons. Smart keys are proximity fobs that start the car with a button. Match the year on this page or send a photo with your registration.

How long does Audi A4 key cutting and programming take? +

Most spare-key jobs are 45–60 minutes on site once the technician has the correct blank and access. All Keys Lost can take longer if security tokens are required.

Can you replace an Audi A4 key if I have lost them all? +

Yes, but All Keys Lost is not the spare-key price. Proof of ownership is required and the quote is individual after registration lookup.