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1999-2006 AUDI TT COUPE MK1 - Ignition Switch 4B0905849

🔥 Only one available — this is the exact part you'll receive. Once it's sold, it's gone.
🔍

Not sure it fits? Let us check — free.

Send us your VIN before you buy and we'll confirm fitment. Or match the OEM number on your existing part to the one listed below.

✓ The photos show the actual part you'll receive — please review them for exact condition.

Part Specs

SKU Number
734362
OE Part Number
4B0905849
Brand
Audi

Condition

This part comes as shown in the picture(s).

Compatibility Chart

Year Make Model Trim Engine Restrictions
1996AudiA4, A4 QuattroSedan2.8LGas
1997AudiA4, A4 QuattroSedan1.8L Gas Turbo, 2.8LGas
1998-2001AudiA4, A4 QuattroSedan, Wagon1.8L Gas Turbo, 2.8LGas
2002AudiA4, A4 QuattroSedan, Wagon1.8L Gas Turbo, 3.0LGas
2003AudiA4, A4 QuattroConvertible, Sedan, Wagon1.8L Gas Turbo, 3.0LGas
2004AudiA4, A4 QuattroConvertible, S Line, Sedan, Wagon1.8L Gas Turbo, 3.0LGas
2005-2006AudiA4, A4 QuattroConvertible, S Line, Sedan, Wagon1.8L Gas Turbo, 2.0L Gas Turbo, 3.0LGas, 3.2LGas
2007-2008AudiA4, A4 QuattroConvertible, S Line, Sedan, Wagon2.0L Gas Turbo, 3.2LGas
2009AudiA4, A4 QuattroConvertible2.0L Gas Turbo, 3.2LGas
1996AudiA4Sedan2.8LGasWhere Last 6 Digits of VIN Number are Greater Than 300001.
1998AudiA6, A6 QuattroSedan2.8LGasWhere Last 6 Digits of VIN Number are Greater Than 070001.
1999AudiA6, A6 QuattroSedan, Wagon2.8LGas
2000-2001AudiA6, A6 QuattroSedan, Wagon2.7L Gas Turbo, 2.8LGas, 4.2LGas
2002AudiA6, A6 QuattroSedan, Wagon2.7L Gas Turbo, 3.0LGas, 4.2LGas
2003-2004AudiA6, A6 QuattroS Line, Sedan, Wagon2.7L Gas Turbo, 3.0LGas, 4.2LGas
1998-1999AudiA8, A8 QuattroSedan3.7LGas, 4.2LGas
2000-2002AudiA8, A8 QuattroSedan4.2LGas
2001-2002AudiAllroad QuattroWagon2.7L Gas Turbo
2003-2005AudiAllroad QuattroWagon2.7L Gas Turbo, 4.2LGas
2007AudiRS4Sedan4.2LGas
2008AudiRS4Convertible, Sedan4.2LGas
2003-2004AudiRS6Sedan4.2L Gas Turbo
2000AudiS4Sedan2.7L Gas Turbo
2001-2002AudiS4Sedan, Wagon2.7L Gas Turbo
2004-2008AudiS4Convertible, Sedan, Wagon4.2LGas
2009AudiS4Convertible4.2LGas
2002-2003AudiS6Sedan, Wagon4.2LGas
2004AudiS6Sedan4.2LGas
2001-2002AudiS8Sedan4.2LGas
1999-2000AudiTT, TT QuattroCoupe1.8L Gas Turbo
2001-2002AudiTT, TT QuattroConvertible, Coupe1.8L Gas Turbo
2003AudiTT, TT QuattroConvertible, Coupe, S Line1.8L Gas Turbo
2004-2006AudiTT, TT QuattroConvertible, Coupe, S Line1.8L Gas Turbo, 3.2LGas
2004-2005Porsche911Convertible, Coupe3.6LGas, 3.6L Gas Turbo
2004PorscheBoxsterConvertible2.7LGas, 3.2LGas
2004-2005PorscheCarrera GTConvertible, Coupe5.7LGas
2006PorscheCarrera GTCoupe5.7LGas
1998VolkswagenBeetleHatchback1.9L Diesel Turbo, 2.0LGas
1999-2002VolkswagenBeetleHatchback1.8L Gas Turbo, 1.9L Diesel Turbo, 2.0LGas
2003-2005VolkswagenBeetleConvertible, Hatchback1.8L Gas Turbo, 1.9L Diesel Turbo, 2.0LGas
2006VolkswagenBeetleConvertible, Hatchback1.9L Diesel Turbo, 2.0LGas, 2.0L Gas Turbo, 2.5LGas
2007-2010VolkswagenBeetleConvertible, Hatchback2.0LGas, 2.5LGas
1999VolkswagenGolfHatchback1.8LGas, 1.9L Diesel Turbo, 2.0LGas, 2.8LGas
2000-2005VolkswagenGolfHatchback1.8L Gas Turbo, 1.9L Diesel Turbo, 2.0LGas, 2.8LGas
2006VolkswagenGolfHatchback1.8L Gas Turbo, 1.9L Diesel Turbo, 2.0LGas
2007VolkswagenGolfHatchback2.0LGas
2010VolkswagenGolfHatchback, Wagon2.0L Diesel Turbo, 2.5LGas
1999VolkswagenJettaSedan1.8LGas, 1.8L Gas Turbo, 1.9L Diesel Turbo, 2.0LGas, 2.8LGas
2000VolkswagenJettaSedan1.8L Gas Turbo, 1.9L Diesel Turbo, 2.0LGas, 2.8LGas
2001-2004VolkswagenJettaSedan, Wagon1.8L Gas Turbo, 1.9L Diesel Turbo, 2.0LGas, 2.8LGas
2005VolkswagenJettaSedan, Wagon1.8L Gas Turbo, 1.9L Diesel Turbo, 2.0LGas, 2.5LGas
2007VolkswagenJettaSedan1.9L Diesel Turbo, 2.0LGas, 2.0L Gas Turbo, 2.5LGas
2008VolkswagenJettaSedan, Wagon1.9L Diesel Turbo, 2.0LGas, 2.0L Gas Turbo, 2.5LGas
2009VolkswagenJettaSedan, Wagon1.8L Gas Turbo, 1.9L Diesel Turbo, 2.0LGas, 2.0L Diesel Turbo, 2.0L Gas Turbo, 2.5LGas
1998-1999VolkswagenPassatSedan, Wagon1.8L Gas Turbo, 2.8LGas
2000-2001VolkswagenPassat4 Motion, Sedan, Wagon1.8L Gas Turbo, 2.8LGas
2002-2003VolkswagenPassat4 Motion, 4Motion, Sedan, Wagon1.8L Gas Turbo, 2.8LGas, 4.0LGas
2004VolkswagenPassat4 Motion, 4Motion, Sedan, Wagon1.8L Gas Turbo, 2.0L Diesel Turbo, 2.8LGas, 4.0LGas
2005VolkswagenPassat4 Motion, 4Motion, Sedan, Wagon1.8L Gas Turbo, 2.0L Diesel Turbo, 2.8LGas

Returns

  • 30-day returns.* Changed your mind or ordered the wrong part? Send it back within 30 days for a refund (return shipping paid by buyer).
  • Wrong part our fault, or not as described? We cover return shipping and refund you in full.

*Returns apply to orders shipped within the U.S. International orders are final sale.

Shipping

  • Order by 12:00 PM CST → ships the same day. Otherwise within 1 business day.
  • Free shipping within the continental U.S.
  • We ship worldwide. International buyers cover any customs, duty, or brokerage fees.

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