United States
Product overview
Genuine OEM Audi Ignition Switch, part number 4B0905851Q. This essential component is responsible for controlling the vehicle's electrical power supply and initiating the engine start sequence. It is typically mounted on the steering column, often incorporating the steering lock mechanism for security. Constructed from durable cast metal, it weighs approximately 0.378 kg and measures 0.133 meters in length. Choosing a genuine OEM ignition switch ensures precise mechanical and electrical operation, correct key cylinder interaction, and seamless integration with the vehicle's immobilizer system, which is crucial for both security and reliable starting.
Technical details
- Category
- Ignition
- Country of origin
- Portugal
- Customs (HS) code
- 83012000
- Manufacturer
- Audi
- Product Type
- Genuine new auto parts
- Shipping size (L × W × H)
- 13.3 × 6.5 × 8 cm
- Shipping weight
- 0.38 kg
Why buy from WW Spares?
- ✓ Genuine OEM inventory sourced directly from factory networks
- ✓ Fitment support from workshop-seasoned parts specialists
- ✓ Global logistics with customs-ready documentation
Need help confirming compatibility? Talk to a specialist
Parts diagram & fitment
47 vehiclesLock — locate 4B0905851Q Audi Ignition Switch | Steering Column Lock in the official exploded view and explore the surrounding assembly.
Parts in this assembly10
Compatible / alternative parts(2)
Vehicle fitment table47
Europe (38)
| Vehicle | Years | Pos. | Qty | Remark | PR |
|---|---|---|---|---|---|
| Roomster | 2010-2015 | 1 | 1 | PR:B0N+L0R | |
| Fabia Scout | 2010-2014 | 1 | 1 | PR:B0N+L0R | |
| Polo | 2009-2012 | 1 | 1 | 0RA | |
| Ibiza Reference | 2008-2011 | 1 | 1 | D | |
| Exeo ST Reference | 2008-2011 | 1 | 1 | 0G1 | |
| Polo | 2008-2009 | 1 | 1 | 0RA | |
| transp. caravelle | 2008-2009 | 11 | 1 | PR:G0C,G0K, | |
| transp. dropside | 2008-2009 | 11 | 1 | ||
| California Camper | 2008-2009 | 11 | 1 | ||
| TRANSPORTER GESCHL. 08 | 2007- | 11 | 1 | ||
| TRANSPORTER OFFEN 08 | 2007- | 11 | 1 | ||
| CAMPMOBIL-T5 08 | 2007- | 11 | 1 | ||
| Audi RS4 Cabrio qu. 08> | 2007- | 1 | 1 | 0G1 | |
| Audi RS4 qu. 07> | 2006- | 1 | 1 | 0G1 | |
| Audi A4/S4 Cabrio./qu. 07> | 2006- | 1 | 1 | 0G1 | |
| ROOMSTER 06> | 2006- | 1 | 1 | PR:BON+LOR | |
| FABIA/COMBI NF 07> | 2006- | 1 | 1 | PR:B0N+L0R | |
| TRANSPORTER/4MOTION 07 | 2006-2007 | 11 | 1 | ||
| TRANSPORTER OFFEN (7J) 07 | 2006-2007 | 11 | 1 | ||
| CAMPMOBIL (T5) 07 | 2006-2007 | 11 | 1 | ||
| POLO | 2005- | 1 | 1 | 0RA | |
| New Beetle 06> | 2005- | 1 | |||
| New Beetle Cabrio. 06> | 2005- | 1 | 1 | D | |
| FOX M.05> | 2005- | 1 | 1 | ||
| Audi A4/S4/Av./qu. 05> | 2005- | 1 | 1 | 0G1 | |
| TRANSPORTER/4MOTION 06 | 2005-2006 | 11 | 1 | ||
| TRANSPORTER 06 | 2005-2006 | 11 | 1 | ||
| CAMPMOBILE(T5) | 2004-2006 | 11 | 1 | ||
| New Beetle Cabrio. | 2003-2005 | 1 | 1 | ||
| TRANSPORTER | 2003-2005 | 11 | 1 | ||
| Audi A4/S4 Cabrio./qu. | 2002-2006 | 1 | 1 | ||
| PASSAT/4MOTION/W8 | 2002-2005 | 1 | |||
| SUPERB 02> | 2001- | 1 | 1 | PR:0G1 | L0R,0G1 |
| POLO | 2001-2005 | 1 | 1 | 0RA | |
| Audi A4/S4/Av./qu. | 2001-2004 | 1 | |||
| Audi A6/Wagon/quattro | 2001-2004 | 1 | |||
| AUDI A2 | 2000-2005 | 1 | F 8 | ||
| Audi A6 Allroad qu. | 2000-2005 | 1 | 1 | 0G1 |
Other markets (9)
| Vehicle | Years | Pos. | Qty | Remark | PR |
|---|---|---|---|---|---|
| Spacefox | 2010-2014 | 1 | 1 | 0RA | |
| Polo Vivo | 2010-2014 | 1 | 1 | D | |
| POLO SEDAN "BR."07> | 2006- | 1 | |||
| SURAN (FOX MPV) "RA."06> | 2006- | 1 | 1 | "MEX"+BLH | 0RA |
| POLO CLASSIC "ZA"05> | 2005- | 1 | 1 | 0RA | |
| AUDI A4 "CN."06> | 2005- | 1 | 1 | ||
| POLO CLASSIC "ZA"03>05 | 2003-2005 | 1 | 1 | 0RA | |
| POLO LIM.(SEDAN) "BR" | 2002-2006 | 1 | |||
| Jetta USA | 2001-2005 | 1 | 1 | PR:0G4 |
Diagrams & fitment data powered by oemdiagrams.com
4B0905851Q Audi Ignition Switch | Steering Column Lock is fitted on: Roomster 2010-2015; Fabia Scout 2010-2014; Polo 2009-2012; Ibiza Reference 2008-2011; Exeo ST Reference 2008-2011; Polo 2008-2009; transp. caravelle 2008-2009; transp. dropside 2008-2009; California Camper 2008-2009; TRANSPORTER GESCHL. 08 2007-; TRANSPORTER OFFEN 08 2007-; CAMPMOBIL-T5 08 2007-; Audi RS4 Cabrio qu. 08> 2007-; Audi RS4 qu. 07> 2006-; Audi A4/S4 Cabrio./qu. 07> 2006-; ROOMSTER 06> 2006-; FABIA/COMBI NF 07> 2006-; TRANSPORTER/4MOTION 07 2006-2007; TRANSPORTER OFFEN (7J) 07 2006-2007; CAMPMOBIL (T5) 07 2006-2007; POLO 2005-; New Beetle 06> 2005-; New Beetle Cabrio. 06> 2005-; FOX M.05> 2005-; Audi A4/S4/Av./qu. 05> 2005-; TRANSPORTER/4MOTION 06 2005-2006; TRANSPORTER 06 2005-2006; CAMPMOBILE(T5) 2004-2006; New Beetle Cabrio. 2003-2005; TRANSPORTER 2003-2005; Audi A4/S4 Cabrio./qu. 2002-2006; PASSAT/4MOTION/W8 2002-2005; SUPERB 02> 2001-; POLO 2001-2005; Audi A4/S4/Av./qu. 2001-2004; Audi A6/Wagon/quattro 2001-2004; AUDI A2 2000-2005; Audi A6 Allroad qu. 2000-2005; Spacefox 2010-2014; Polo Vivo 2010-2014; POLO SEDAN "BR."07> 2006-; SURAN (FOX MPV) "RA."06> 2006-; POLO CLASSIC "ZA"05> 2005-; AUDI A4 "CN."06> 2005-; POLO CLASSIC "ZA"03>05 2003-2005; POLO LIM.(SEDAN) "BR" 2002-2006; Jetta USA 2001-2005.