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Mercedes-Benz engine oil

Enter your reg for the right Duckhams oil for your Mercedes-Benz, or find the specification in your handbook below.

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Mercedes-Benz's oil specifications

Your handbook gives the oil specification your Mercedes-Benz needs as a code. Find that code below to see the Duckhams oils recommended for it.

Where to find your Mercedes-Benz's specification

  • In the handbook, usually in the section on servicing or capacities and fluids.
  • In the service book or service app, or on your last service invoice.
  • Or enter your reg above, and Find My Oil shows the right Duckhams oil for your engine, how much it takes and when to change it.

Questions

What does MB 229.51 mean?

A Mercedes-Benz specification for low-ash oil, for petrol and diesel engines with a particulate filter. Many Mercedes-Benz cars list 229.51 or the newer 229.52.

Why do some Mercedes-Benz models list MB 226.5 or 226.51?

Some smaller models, including certain A-Class, B-Class and Citan versions, use engines built with Renault, and those have their own Mercedes-Benz specifications such as 226.5 and 226.51.