Second Hand Mercedes-Benz ML Radiator Fan

The Mercedes-Benz ML has run across three generations: the W163 (1998–2005), the W164 (2005–2011), and the W166 (2011–2019), and crossing that generation boundary almost certainly means the fan assembly, shroud, and mounting points will differ. Within the W164 there was also a facelift around 2008 that may have brought ancillary changes, so even within a generation it is worth confirming against your registration with the breaker. The engine code from your V5 or a VIN check is the most reliable detail to supply, as the fan setup follows the engine rather than the model year badge.

Yes, the ML does have a radiator fan, but the type varies significantly by engine: diesel and larger petrol engines in earlier generations (particularly the W163 and W164) typically used a viscous coupling mechanical fan driven off the engine, while later variants and some petrol engines used an electric fan or a combination of both. Knowing your engine code is essential here, because buyers looking for an electric fan assembly and those needing a viscous fan and clutch are looking for entirely different parts. Tell the breaker your engine code and registration so they can confirm which setup your vehicle left the factory with.

Both years fall within the W164 generation (2005–2011), which is a good start, but the W164 received a facelift around 2008 and there may have been running changes to ancillary parts and mountings across that period. The most important check is whether the engine codes match, as a fan from a 3.0-litre diesel W164 will not necessarily suit a 5.5-litre petrol W164. Confirm the part against your registration with the breaker before buying.

The trim or badge level (ML270, ML320, ML350, ML430, ML500, and so on) broadly reflects the engine fitted, which is exactly what does matter for the radiator fan. So in that sense the badge is a useful shorthand, but what really counts is the engine code itself, not the badge – two cars wearing the same badge could have different engine variants across a model year change. Colour, interior spec, and equipment level have no bearing on which fan fits, so don't let those details distract you when describing the vehicle to the breaker.

Both years sit within the W166 generation (2011–2019), so the chances of compatibility are reasonable, but engine code must match first – for instance a W166 ML250 diesel fan is not the same as an ML350 petrol fan. There can also be mid-production ancillary and mounting changes that aren't always well documented, so confirm the part directly with the breaker using your full registration or VIN rather than relying on the year alone.

The GL (X164 and X166) shared platforms with the respective ML generations and used many of the same engines, so there is potential crossover, but this is not something to assume without checking. Engine codes are the key reference point – if both vehicles share the same engine code, a fan may interchange, but differences in packaging, shroud shape, and mounting can still apply. Put the question to the breaker with both sets of engine codes and registrations and let them confirm compatibility before purchasing.