Mercedes-Benz B-Class Ignition Barrel Replacement Parts
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A buyer's guide to used Mercedes-Benz B-Class ignition barrel
No two ignition barrels are quite the same across different vehicles, so getting the specifics right matters when you buy used, second hand or a replacement. Answer a few quick questions below and breakers will only quote if they have the exact matching part in stock:
- State if you need it complete with keys
Other used Mercedes-Benz B-Class parts
- Used Mercedes-Benz B-Class Body Control Module
- Used Mercedes-Benz B-Class Horn
- Used Mercedes-Benz B-Class Battery
- Used Mercedes-Benz B-Class Heater Motor
- Used Mercedes-Benz B-Class Instrument Cluster
- Used Mercedes-Benz B-Class Shock Absorber
- Used Mercedes-Benz B-Class Bonnet
- Used Mercedes-Benz B-Class Power Steering Pump
- Used Mercedes-Benz B-Class Propshaft
- Used Mercedes-Benz B-Class Windscreen
- Used Mercedes-Benz B-Class Front Cross Member
- Used Mercedes-Benz B-Class Ignition Switch
Used ignition barrel for other Mercedes-Benz models
Fitment questions
Does the Mercedes-Benz B-Class have an ignition barrel?
Most B-Class models do have a traditional ignition barrel — it houses the lock cylinder that accepts the key and is linked to the ignition switch. However, later B-Class models (particularly the W247 generation from 2019 onwards) increasingly feature keyless start systems where a conventional barrel may not be present in the same form, so it is worth confirming with the breaker exactly what your car has against your registration before ordering.
Will a B-Class W169 ignition barrel fit a W245 — are these the same generation?
The W169 is the A-Class, not the B-Class — the first-generation B-Class is the W245, produced from 2005 to 2011. These are two separate platforms and the ignition barrels are not interchangeable, so make sure any donor car is confirmed as a W245 B-Class rather than the W169 A-Class, which shared some styling but not the same components.
Does the ignition barrel from a 2006 B-Class fit a 2010 B-Class?
Both a 2006 and a 2010 B-Class fall within the first-generation W245 (2005–2011), so there is a reasonable chance the barrels are compatible. That said, confirm the part numbers match with the breaker against your registration before buying, as minor production changes can occur across the life of a generation.
Will a W246 ignition barrel fit a W247 B-Class — does the generation matter?
The W246 ran from 2011 to 2018 and the W247 from 2019 onwards, so these are different generations with different steering column and ignition system designs. Crossing this boundary is unlikely to result in a straight swap, and you should confirm compatibility with the breaker against both registrations rather than assume they are interchangeable.
Does the trim level affect which ignition barrel I need — for example, Sport versus Urban or SE?
Trim level — whether your B-Class is an SE, Sport, Urban, or AMG Line — does not affect ignition barrel fitment, as the barrel is a mechanical and electrical component tied to the generation and build date rather than the trim specification. A used barrel from a lower or higher trim car of the same generation should be the same part, though confirm with the breaker as always.
Can I use an ignition barrel from a different Mercedes model on my B-Class?
Mercedes-Benz did share platforms and some components across models, and it is possible that certain A-Class or CLA barrels from the same era share characteristics with the B-Class equivalent, but this is not something to assume. Cross-model compatibility should always be confirmed by the breaker against your specific registration and the donor vehicle's part number, as locking systems are security-critical components.