Service A / Service B
About 25,000 km or 1 year (ASSYST)
25 000 km
12 months
Oil and filter at each service; Service B adds filters and wider checks. The ASSYST indicator prevails.
Source [1]C218 · 2011–2018
The Mercedes CLS CLS 250 CDI of the C218 generation uses the OM651 2.1 CDI diesel engine with 204 hp.
Figures apply to the cited configuration and market; equipment and transmissions may vary by production date.
Specification source : [1] AutoKarnet
204 hp (150 kW), rear-wheel drive, 7-speed automatic. Built from 2011 to 2018.
AutoKarnet advice
It is the entry-level diesel version of this generation. The OM651 2.1 CDI engine is also fitted to: Mercedes Classe A (W176), Mercedes Classe B (W246), Mercedes CLA (C117), Mercedes Classe C (W204), Mercedes Classe C (W205), Mercedes Classe E (W212).
AutoKarnet advice
About 25,000 km or 1 year (ASSYST)
25 000 km
12 months
Oil and filter at each service; Service B adds filters and wider checks. The ASSYST indicator prevails.
Source [1]Every 24 months
24 months
Time-based replacement, whatever the mileage.
Source [1]The OM651 2.1 CDI diesel engine (2 143 cc), 204 hp (150 kW).
AutoKarnet advice
A MB 229.5 / 229.51 / 229.52-approved oil suited to the OM651 2.1 CDI engine.
AutoKarnet advice
AutoKarnet · FR · Europe · Synthèse éditoriale AutoKarnet · Accessed 09/10/2026