What potential issues and necessary steps are involved in disconnecting the battery and replacing the ignition lock cylinder and ignition switch on Volkswagen Passat?

The detachment of the battery can cause the problems in the driveability, which will be solved only with the help of a scan tool, and it can also cause the appearance of warning lights on the instrument panel, which will also have to be turned off with the help of a scan tool. The majority of the public scan tools cannot do all these functions and this implies that a dealer service department or an appropriately equipped service repair centre will have to be visited after any service performance. Moreover, the models with an anti-theft radio have to be properly activated with a code prior to disconnecting the battery. The ignition switch is a cast metal housing, an ignition lock cylinder, and an electrical part, which is placed under the steering column. Check the switch, reach inside it and de-connect the electrical connector, then back probe with an ohmmeter, making sure that continuity exists between the corresponding terminals in various positions on the switch. In case continuity is wrong, then the switch ought to be changed. To change it, first of all, disconnect the negative battery cable and open the steering column covers and ignition switch shroud. On automatic transmission models, it is important to make sure that the shift linkage is in the Park position before moving on. Disconnect the park/lock cable and disconnect the ignition switch by disconnecting the large electrical connector and unscrewing the mounting screws, which may contain a locking coating which has to be chipped off. In order to complete this task, push the key into the key lock cylinder, then turn it to the Start position and then use a piece of paper clip to force the key out. To remove the ignition assembly, chisel the steering column bracket shear bolts. Installation of the key lock cylinder should be done with the On position facing the correct direction and pushed in until it clips. All the remaining part of the installation is in the opposite order of removal.

Genuine Volkswagen Passat Ignition Switch

Starter Ignition Switch

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8 Ignition Switches found

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Volkswagen Passat Power Switch Part Number: 561-959-839-A-3Q7
$44.34 MSRP: $61.59
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Product Specifications
- Other Name: Button; Power Switch
- Warranty: This genuine part is guaranteed by Volkswagen's factory warranty.
Fits the following Vehicles:
- 2016-2022 Volkswagen Passat | GT, Limited Edition, R-Line, S, SE, SE R-Line, SEL, SEL Premium, Wolfsburg Edition | 4 Cyl 1.8 L GAS, 4 Cyl 2.0 L GAS, 6 Cyl 3.6 L GAS
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Volkswagen Passat Start Button Part Number: 561-959-839-D-UPA
$83.18 MSRP: $116.49
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Product Specifications
- Other Name: Button
- Warranty: This genuine part is guaranteed by Volkswagen's factory warranty.
Fits the following Vehicles:
- 2020-2022 Volkswagen Passat | Limited Edition, R-Line, SE, SEL | 4 Cyl 2.0 L GAS
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Volkswagen Passat Ignition Switch Part Number: 4B0-905-849
$91.04 MSRP: $127.49
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Product Specifications
- Other Name: Switch
- Warranty: This genuine part is guaranteed by Volkswagen's factory warranty.
Fits the following Vehicles:
- 1998-2005 Volkswagen Passat | 4 Motion, GL, GL TDI, GLS, GLS 4 Motion, GLS TDI, GLX, GLX 4 Motion, W8 | 4 Cyl 1.8 L GAS, 4 Cyl 2.0 L DIESEL, 6 Cyl 2.8 L GAS, 8 Cyl 4.0 L GAS
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Volkswagen Passat Ignition Switch Part Number: 1K0-905-849
$102.23 MSRP: $143.19
You Save: $40.96 (29%)
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Product Specifications
- Other Name: Switch
- Warranty: This genuine part is guaranteed by Volkswagen's factory warranty.
Fits the following Vehicles:
- 2012-2022 Volkswagen Passat | GT, Limited Edition, R-Line, S, SE, SE R-Line, SEL, SEL Premium, Sport, TDI SE, TDI SEL, TDI SEL Premium, Wolfsburg Edition | 4 Cyl 1.8 L GAS, 4 Cyl 2.0 L DIESEL, 4 Cyl 2.0 L GAS, 5 Cyl 2.5 L GAS, 6 Cyl 3.6 L GAS
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Volkswagen Passat Power Switch Part Number: 561-959-839-C-3Q7
$151.14 MSRP: $211.68
You Save: $60.54 (29%)
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Product Specifications
- Other Name: Button; Start Button
- Replaces: 561-959-839-B-3Q7, 561-959-839-3Q7
- Warranty: This genuine part is guaranteed by Volkswagen's factory warranty.
Fits the following Vehicles:
- 2012-2016 Volkswagen Passat | Limited Edition, R-Line, S, SE, SEL, SEL Premium, Sport, TDI SE, TDI SEL, TDI SEL Premium, Wolfsburg Edition | 4 Cyl 1.8 L GAS, 4 Cyl 2.0 L DIESEL, 5 Cyl 2.5 L GAS, 6 Cyl 3.6 L GAS
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Volkswagen Passat Ignition Switch Part Number: 3C0-905-843-AC
$172.00 MSRP: $240.90
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Product Specifications
- Other Name: Switch
- Replaces: 3C0-905-843-R, 3C0-905-843-P, 3C0-905-843-S
- Warranty: This genuine part is guaranteed by Volkswagen's factory warranty.
Fits the following Vehicles:
- 2006-2010 Volkswagen Passat | 2.0T, 3.6, Komfort, Lux, Turbo, Value Edition, VR6, Wolfsburg Edition | 4 Cyl 2.0 L GAS, 6 Cyl 3.6 L GAS
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Volkswagen Passat Ignition Switch Part Number: 6N0-905-865
$58.32 MSRP: $81.00
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Product Specifications
- Other Name: Switch
- Replaces: 357-905-865
- Warranty: This genuine part is guaranteed by Volkswagen's factory warranty.
Fits the following Vehicles:
- 1990-1997 Volkswagen Passat | CL, GL, GLS, GLX, TDI | 4 Cyl 1.9 L DIESEL, 4 Cyl 2.0 L GAS, 6 Cyl 2.8 L GAS
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Volkswagen Passat Controller Part Number: 5K0-905-861-D
$332.13 MSRP: $453.74
You Save: $121.61 (27%)
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Product Specifications
- Other Name: Steering Column Immobilizer
- Replaces: 5K0-905-861-B, 5K0-905-861-A, 5K0-905-861-C
- Warranty: This genuine part is guaranteed by Volkswagen's factory warranty.
Fits the following Vehicles:
- 2012-2022 Volkswagen Passat | GT, Limited Edition, R-Line, S, SE, SE R-Line, SEL, SEL Premium, Sport, TDI SE, TDI SEL, TDI SEL Premium, Wolfsburg Edition | 4 Cyl 1.8 L GAS, 4 Cyl 2.0 L DIESEL, 4 Cyl 2.0 L GAS, 5 Cyl 2.5 L GAS, 6 Cyl 3.6 L GAS

Volkswagen Passat Ignition Switch

The gateway that opens the car when the owner wants to start the car is the Volkswagen Passat Ignition Switch, which transmits the start message to the car computer and the electrical network of the car. It sits between the action of the driver and a cascade that drives the starter motor, fueling and spark systems, and fringe technologies such as the stereo and the windows, thus causing the engine to start and the cabin techs to be awakened. Initial models of the sedan were based on a mechanical key, implying that a cut metal blade needed to contact the tumblers before unlocking the ignition, which activated circuits in addition to unlocking the steering lock. In the Volkswagen family, subsequent generations included an immobiliser chip; the Ignition Switch would only continue running provided the reader confirmed the corresponding transponder signal. The new model of the Passat also uses the push button in place of the turning key, but the operation is the same, as the push button will also verify an authorized electronic code before sending power to the starter relay. The comparison between the two is that the keyed unit has tactile feedback but can wear out the cylinder, whereas the button type has no moving tumbler parts and allows pockets to remain zipped, though it relies on a fob battery. The assembly is based on a vehicle-specific plug-in pattern to simplify replacement, and both styles have their own different wiring, which thieves attempted to abuse in one method, now discouraged by the immobiliser, of hotwiring. What we have is a reliable Ignition Switch which every Volkswagen owner can rely upon when it is time to drive and which adds to the sense of familiarity found in the broader Volkswagen family.

Choose OEM Ignition Switch for superior quality and long-lasting durability. They match the Volkswagen's factory specifications exactly and pass strict quality control. If you plan to replace Ignition Switch on your Passat, put OEM at the top of your list. You'll get the right fit, reliable performance, and peace of mind. We stock an extensive inventory of genuine Volkswagen Passat parts. It is easy to find what you need. You will love our competitive prices that help you save. No more hassle with returns or guesswork. Every part includes a warranty straight from the manufacturer. Get trusted quality, strong durability, and real value today.

Volkswagen Passat Ignition Switch Parts and Q&A

Ignition Switch
4B0-905-849
Q: What potential issues and necessary steps are involved in disconnecting the battery and replacing the ignition lock cylinder and ignition switch on Volkswagen Passat?
A:
The detachment of the battery can cause the problems in the driveability, which will be solved only with the help of a scan tool, and it can also cause the appearance of warning lights on the instrument panel, which will also have to be turned off with the help of a scan tool. The majority of the public scan tools cannot do all these functions and this implies that a dealer service department or an appropriately equipped service repair centre will have to be visited after any service performance. Moreover, the models with an anti-theft radio have to be properly activated with a code prior to disconnecting the battery. The ignition switch is a cast metal housing, an ignition lock cylinder, and an electrical part, which is placed under the steering column. Check the switch, reach inside it and de-connect the electrical connector, then back probe with an ohmmeter, making sure that continuity exists between the corresponding terminals in various positions on the switch. In case continuity is wrong, then the switch ought to be changed. To change it, first of all, disconnect the negative battery cable and open the steering column covers and ignition switch shroud. On automatic transmission models, it is important to make sure that the shift linkage is in the Park position before moving on. Disconnect the park/lock cable and disconnect the ignition switch by disconnecting the large electrical connector and unscrewing the mounting screws, which may contain a locking coating which has to be chipped off. In order to complete this task, push the key into the key lock cylinder, then turn it to the Start position and then use a piece of paper clip to force the key out. To remove the ignition assembly, chisel the steering column bracket shear bolts. Installation of the key lock cylinder should be done with the On position facing the correct direction and pushed in until it clips. All the remaining part of the installation is in the opposite order of removal.