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Febi Bilstein Ignition Switch | 4B0905849

Audi A4 Quattro, A6 Quattro, A4, S4, A8 Quattro, TT Quattro, Allroad Quattro, S6, TT, A6 & more
Porsche 911, Boxster
VW Jetta, Passat, Golf, Beetle, Jetta IV, Jetta MK4, Jetta MK3, Golf MK4, Golf IV, Golf MK3
In Stock Status
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Leaves warehouse within 1-2 business days.

Make Sure It Fits

P/N: 4B0905849 Febi Bilstein
Cross References:
  • 18646

Your vehicle’s ignition switch turns your vehicle on and starts the engine. Ignition switches come in an array of designs, but all function similarly. Whether your vehicle uses a physical key that must be inserted into the ignition switch, a key fob with a chip that must be inserted into the ignition switch, or a key fob with a chip that simply needs to be in the vehicle, the ignition switch only allows your unique keys to turn on and start your vehicle.

Ignition switches fail in a multitude of ways. Physical failure of an ignition switch can include the tumbler becoming stuck or breaking free from the switch and being able to turn freely around in the switch. Physical failure can also include the pins in the tumbler wearing, preventing the key from turning the tumbler, and the connection between the tumbler and the electrical switch wearing and no longer making contact.

Electrical failures include an open circuit in the switch, a short to ground, worn electrical pins not connecting, and circuit or memory failure of the chip reader. Any component failures of an ignition switch will result in your vehicle having difficulty starting or not starting at all.

Important Note:

Weak or dead batteries in a key fob and unprogrammed keys can mimic a failed ignition switch. Always check the key fob batteries and ensure that key fobs and chipped keys are properly programmed before replacing ignition switches.

View more Febi Ignition Switches.

Left = Driver side and Right = Passenger side.
All parts are priced individually unless identified as a set or kit. "Per car" notes identify how many of a given part your car has and "Left/Right or Front/Rear" notes means the part fits the left or right side of the car. These parts are still sold individually and you'll need to select the appropriate quantity if you plan to replace more than one of this item.

Frequently Viewed Together

We found 10 additional part(s) that are frequently viewed together.

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What This Febi Bilstein Ignition Switch Fits?

Application information below is for reference only and should not be used to determine the exact vehicle fitment. Please use the "Make Sure It Fits" vehicle selection box above to determine the exact fitment and review any application notes. If you need any help determining if this part works with your vehicle, please don't hesitate to contact us.

98-09 - A4 , Avant, B5, B6, Base & more
97-97 - A4
From chassis # 8D-V-240001
98-09 - A4 Quattro Base, Avant, B5, B6, Cabriolet
97-97 - A4 Quattro
From chassis # 8D-V-240001.
99-04 - A6
98-98 - A6
From chassis # 4B-W-070001.
99-04 - A6 Quattro Base, Avant
98-98 - A6 Quattro
From chassis # 4B-W-070001.
99-99 - A8
98-98 - A8
From chassis # 4D-W-000001.
99-02 - A8 Quattro
98-98 - A8 Quattro
From chassis # 4D-W-000001.
03-03 - A8 Quattro Base, L
Through chassis # 4D-3-004999.
01-05 - Allroad Quattro
07-08 - RS4 Base, Cabriolet
03-03 - RS6
00-09 - S4 Base, Avant, Cabriolet
02-03 - S6 Avant
01-03 - S8
04-05 - 911 40th Anniversary Edition, Carrera, Carrera 4, Carrera 4S, GT2 & more
05-05 - 911 Carrera
Manufacturer Body Code: 996
99-03 - 911 Carrera, Carrera 4, Carrera 4S, GT2, Turbo
Only for Models with Lock Assembly # 996 347 017 07
04-04 - Boxster Base, S, S SPECIAL Edition
97-03 - Boxster Base, Roadster, Roadster S
Only for Models with Lock Assembly # 996 347 017 07
98-10 - Beetle Base, 2.5, GLS TDI, S, SE & more
00-06 - Golf Base, GTI, GTI 1.8T, GTI GLS, GTI GLX & more
06-06 - Golf IV GL, GLS, GLS TDI
99-99 - Golf MK3 GTI
99-99 - Golf MK3 GL
Manufacturer Body Code: A4
99-99 - Golf MK4 GLS, GTI, TDI
99-99 - Golf MK4 GL
Manufacturer Body Code: A4
00-04 - Jetta Base, GL, GLI, GLS, GLS Turbo & more
04-04 - Jetta

Body Type: Sedan
Body Type: Wagon
01-03 - Jetta GLS
Body Type: Sedan
01-04 - Jetta Base, GLS, GLX
Body Type: Sedan
Body Type: Wagon
05-05 - Jetta IV Base, TDI, Turbo
99-99 - Jetta MK3 TDI
99-99 - Jetta MK3 GL, GLS, GLX
Manufacturer Body Code: A4
99-99 - Jetta MK4 TDI
99-99 - Jetta MK4 GL, GLS, GLX
Manufacturer Body Code: A4
99-05 - Passat Base, 4MOTION, GLX 4 Motion, Turbo, W8
98-98 - Passat GLS
From chassis # 3B-W-068248.