Used Mercedes-Benz S-Class Water Pump

These are two different generations — the W221 ran from 2005 to 2013, while the W222 started in 2013, so a 2010 and a 2014 car are not the same generation at all and the pumps are very unlikely to be interchangeable. Even within a single generation, fitment is driven by engine code rather than model year, so you need to match the engine code from your V5 or a VIN check. Confirm any cross-generation swap directly with the breaker against your registration before ordering.

Yes, all petrol and diesel variants of the S-Class use a liquid-cooled internal combustion engine and therefore have a water pump as a standard part of the cooling system. Some newer S-Class engines also use an additional electric auxiliary water pump alongside the main mechanical one, so depending on your engine code you may need to specify which pump you are looking for. Give the breaker your engine code to make sure you get the right one.

Engine code matters more than anything else for a water pump on the S-Class, because Mercedes used several different petrol and diesel engines across the same model year — for example, a 2008 W221 could carry a 3.0-litre diesel, a 3.5-litre petrol, a 4.7-litre V8 or a 6.0-litre V12, and each has a different pump. Fuel type alone is not enough to narrow it down, and year is only a rough guide. Your engine code is printed on the V5 or can be confirmed with a VIN check, and it is the single most useful detail you can give a breaker.

The trim badge in this case reflects the engine fitted — an S350 and an S500 have different engines and will therefore use different water pumps, so the badge is actually a useful indicator here. However, the engine code is still more reliable than the badge alone, because Mercedes occasionally updated or revised engines mid-production without changing the trim name. Two cars both badged S350 but built in different years could have slightly different pumps, so always confirm with the breaker using your engine code rather than relying solely on the badge.

The W221 S-Class received a facelift in 2009, but whether the water pump changed across that facelift depends on the specific engine code rather than the facelift date itself. Many engines carried over unchanged through the facelift, in which case the pump may well interchange, but ancillary and mounting changes can occur mid-production without obvious external differences. Name the generation boundary — pre-facelift to post-facelift W221 — when speaking to the breaker, and ask them to confirm fitment against both registrations before you commit.

The W220 ran from 1998 to 2005 and the W222 from 2013 onwards, so these are separated by an entire generation and the engines are quite different — a direct swap is very unlikely to work. Water pumps are engine-specific components, and even if two engines share a family resemblance, dimensions, fixing points and coolant circuit routing often differ between generations. A breaker will need your engine code from the V5 or VIN to source the correct part for your exact vehicle.