Mercedes-Benz original equipment (OE) tyres

Behind the MO marking lies a rubber compound, casing and tread tuned to a specific Mercedes model, so that the tyre works with that car's suspension and stability systems. MO suits a broad Mercedes range, from the A- and B-Class to the GLC and GLE SUVs and the E- and S-Class. The family splits into subgroups: MO1 is developed for AMG models, MOE (MOExtended) is the RunFlat version for models with factory TPMS, MO-S (Silent) is for noise-sensitive S-Class cars and has a foam insert, while MO-V is intended for Mercedes vans.

In practice, the choice comes down to what the car came with from the factory. A few basic principles:

• Compare the full sidewall marking. A visually identical tyre may lack MO approval, so the size, the load and speed index and the MO marking itself all have to match, not just the model name.
• MO, MO1 and MOE are not interchangeable. Each is tied to a specific car type and suspension calibration; a non-RunFlat option must never be fitted in place of an MOE tyre, or vice versa.
• MOE requires factory TPMS. Without pressure monitoring the driver notices nothing when air is lost and the self-supporting safety function does not work.
• Fit identically marked tyres on the same axle. The MO and the non-MO version of the same model can differ in compound and construction.
• For winter, look for 3PMSF, not MO. The MO marking alone says nothing about the season - for a Latvian winter, choose an MO or MOE model with the 3PMSF marking.

If the car did not leave the factory on MO tyres, or you simply want the cheapest option, an ordinary premium tyre in the correct size will do just as well. The MO segment is meant for those who want to restore the exact factory specification and keep the original driving character. The same applies to Mercedes EQ electric models: MO tyres suit them, and ordinary passenger-car tyres are suitable for electric cars too.