Cheap Mercedes-Benz Viano Crankshaft

The Viano W639 ran from 2003 to 2014, with a facelift in 2010, so a 2008 unit and a 2012 unit sit either side of that facelift boundary. Engine code compatibility is what truly determines whether the crankshaft will interchange, not the year alone, so you need to confirm both vehicles share the exact same engine code before assuming it will fit. Confirm cross-facelift compatibility with the breaker against both registrations to be sure.

No — the 2.2 CDI and 3.0 CDI are entirely different engines with different displacements, bore and stroke dimensions, so their crankshafts are not interchangeable. Always match the crankshaft to the exact engine code, which you can find on your V5 or via a VIN check, rather than relying on the engine size badge alone. Supply the engine code to your breaker and they will source the correct unit.

No, trim level has no bearing on crankshaft fitment whatsoever — the crankshaft is determined entirely by the engine fitted, not the interior or equipment level. An Ambiente and an Avantgarde with the same engine code take the same crankshaft. Focus on supplying your engine code to the breaker rather than your trim designation.

Yes — a crankshaft is a fundamental internal engine component present in every internal combustion engine, so every Viano variant, whether diesel or petrol, has one. What varies between variants is the specific crankshaft specification, which is dictated by the engine code. Always confirm your exact engine code before sourcing a used unit from a breaker.

These two vehicles span the pre-facelift (2003–2010) and post-facelift (2010–2014) periods of the W639 generation, and while the engine family remained broadly similar across this period, there can be specification changes within a generation that affect internal components. The engine code is your most reliable guide — if both vehicles share an identical engine code, fitment is far more likely, but you should still confirm with the breaker against both registrations before purchasing.

Beyond matching the engine code precisely, bear in mind that the condition and wear of the crankshaft's journals matters significantly for a used unit, so ask the breaker whether it has been inspected or measured. You should also confirm with the breaker whether any ancillary components or sensors attached to the crankshaft from their donor vehicle match your application, as these details can vary and are best verified against your registration rather than assumed.