Cheap Mercedes-Benz A-Class Ignition Switch

It depends on the generation. The first-generation A-Class (W168, 1997–2004) and second-generation (W169, 2004–2012) used a traditional key-operated ignition switch, so a physical ignition switch barrel and electrical switch assembly does exist on those cars. The third-generation (W176, 2012–2018) and fourth-generation (W177, 2018–present) A-Class moved to keyless ignition systems on many variants, so a conventional ignition switch may not exist on those cars — confirm with the breaker exactly what your car has before ordering.

Both a 2006 and a 2010 A-Class fall within the W169 generation (2004–2012), so there is a reasonable chance the ignition switch assembly is compatible. However, confirm the exact part number with the breaker against your registration, as there can be differences in the electrical connector or locking mechanism within a generation that aren't obvious from the year alone. Never assume fitment without the breaker checking your specific car's details.

These are two distinct generations with different body structures, wiring looms, and steering column designs, so the ignition switch from a W168 is very unlikely to be a straight swap into a W169. This is a generation boundary crossing, and you should confirm compatibility directly with the breaker quoting against your registration rather than assuming the parts are interchangeable. Treat these as separate part searches to be safe.

Trim level does not affect the ignition switch itself — the switch is determined by the generation and steering column specification, not whether the car is an SE, Sport, or AMG Line. You may find cosmetic differences around the ignition surround or steering column shroud between trims, but the functional switch assembly should be the same across the range for a given generation. Confirm the generation and any locking system type (standard key versus electronic immobiliser variant) with the breaker to make sure you get the right part.

The W169 A-Class and the W245 B-Class (2005–2011) share the same platform and many mechanical components, so there is a chance the ignition switch assembly is shared. However, this is not guaranteed, and you should ask the breaker to check the part number against both registrations before buying. Cross-model compatibility like this is worth exploring but must be verified, not assumed.

This is an important consideration: on W168 and W169 A-Class models, the ignition switch is often linked to the EIS (Electronic Ignition Switch) and the car's immobiliser system, meaning a used unit may need to be coded or paired to your car's ECU. Simply fitting a used switch physically may not be enough to get the car running. Discuss this with the breaker and, if needed, a Mercedes specialist or auto locksmith who can advise on whether coding will be required for your specific car.