Audi Key Replacement in Milwaukee

Audi keys for the A4, A5, Q5, and more

Audi key replacement in Milwaukee covers the A4 and A5, the Q5 and Q7, the A6, the A3 and Q3, the TT, and the allroad. Audi is part of the Volkswagen Group, and many of its keys share parts and programming steps with a VW. One detail sets a large group of Audis apart, though: a key that goes into a slot in the dash instead of turning in an ignition. We make Audi keys at the car, with the programming done on site.

The A4, A5, and Q5 key that goes into the dash

On the A4, A5, and Q5 of about 2009 to 2016, the key has no blade to turn. On cars without keyless start, you push the whole key into a slot in the dash, and pressing it in starts the engine. On cars with keyless start, the key can stay in your pocket and the Start/Stop button does the work. Either type carries a small emergency blade inside for the driver's door.

Owners often ask whether the slot key and the keyless key are the same part. They are not: a key for a car with keyless start has different electronics, and a new key has to match what your car was built with. A photo of your key and a look at the dash, slot or button, settles it.

The body module that keeps the key list

On the 2009–2016 A4, A5, and Q5, the list of keys sits in the body control module, which Audi technicians call BCM2. It came with the 2009 A4 and was also used in the A5, the Q5, and the A6, A7, and A8 of the early 2010s. Adding a key starts with reading the module's immobilizer data. On some versions of the module we read it through the diagnostic port; on others the module comes out from behind the dash for a bench read and goes back in after. Both are normal parts of an Audi key job, and we tell you which one to expect when you send the year and model.

Flip keys on the A3, TT, and older Audis

Older Audis, such as the A4 of the early and mid-2000s, the TT, and the A3, use a flip key much like a Volkswagen's, with the blade folding into the remote. The A3 from 2015 and the newer Q3 share the MQB platform with many VWs, so their keys follow the same steps as a newer Volkswagen (Volkswagen keys). The newest Audis use smart keys with an emergency blade inside, and we check the year before we promise a key for them.

A spare Audi key

With one working key, we read the module data, prepare a new key for your car, and add it to the list. A spare Audi key starts at $249 and usually takes 45 minutes to 2 hours at the car, depending on whether the module has to come out (spare car key). Bring every working key along: like a VW, an Audi learns its keys as a set, and a key that is not present stops working afterward.

All Audi keys lost

All keys lost on an Audi starts with getting in (car lockout). For keys with a blade, the cuts come from a decoded lock or from the Audi key code for the VIN, after the title or registration check; on a slot key, the emergency blade inside is cut the same way. Then the module data is read, and the new keys are prepared and added. Keys that were lost do not start the car once we finish. All keys lost costs more than a spare, and you get the price before we start (lost car keys).

Audi remotes

If the buttons on your Audi key stop working while the key still starts the car, the problem is often the key battery or the remote side of the key, not the immobilizer. We check the key first, and a new key is only the answer when the old one is damaged or gone. Many Audis around Milwaukee are quattro models bought used, and a second key made now saves a much longer visit later.

For other European makes, see BMW keys and Mercedes-Benz keys. All makes are on car keys by make.