Used Mercedes-Benz GLE Ignition Switch

Most Mercedes-Benz GLE models use a keyless ignition system with a start/stop button rather than a traditional barrel-type ignition switch, so the conventional ignition switch as found on older vehicles was not fitted to the GLE as standard. That said, there is still an Electronic Ignition Switch (EIS) or steering column module that handles the same function electronically, and this is the part most breakers will list under 'ignition switch' for this model. If you are searching for this part, it is worth clarifying with the breaker whether you need the EIS unit, the start/stop button assembly, or the steering lock module, as these are distinct components. Confirm exactly which part has failed against your registration before ordering.

The W166 GLE ran from 2015 to 2018, while the V167 generation launched in 2019 on a completely different platform, so the EIS and associated steering column electronics are not the same between these two generations. These are distinct architectures and the parts are not interchangeable. Always confirm the exact part number with the breaker against your registration plate to ensure you are getting the correct unit for your generation.

Trim level does not affect which EIS or electronic ignition module is fitted to the GLE - the underlying ignition system is the same across SE, Sport, AMG Line, and AMG variants within the same generation. You may find cosmetic differences in the start/stop button surround or interior finishing depending on trim, but the functional electronic component itself is shared. Confirm the part number with the breaker against your registration to be certain, but trim is not a key fitment variable here.

The GLE W166 (2015-2018) and the ML-Class W166 (2011-2015) share the same underlying platform, and in some cases EIS units can cross over between these models, but Mercedes electronic modules are often coded to the specific vehicle and the part numbers can differ. This is a question to route directly to the breaker, who can check the part number against your GLE's registration and confirm compatibility before you buy. Do not assume a direct swap without that confirmation, as incorrect EIS fitment can cause significant starting and immobiliser problems.

For many mechanical parts the engine variant matters, but the EIS on the GLE is generally shared across petrol and diesel variants within the same generation rather than being engine-specific. However, Mercedes modules can carry variant-specific coding, so it is always worth having the breaker cross-reference the exact part number against your registration rather than relying on engine type alone. The breaker will be able to confirm whether the unit from a diesel-engined GLE will suit your petrol model or vice versa.

A used Mercedes EIS almost always requires coding or programming to the recipient vehicle, as these units are paired to the car's immobiliser and key system - simply swapping one in without coding will typically leave the car unable to start. You will generally need a Mercedes specialist or a locksmith with the appropriate diagnostic equipment to programme the replacement unit to your vehicle. Factor this into your cost when buying a used EIS from a breaker, and ask the breaker upfront whether the unit has been previously coded, as this can affect the reprogramming process.