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]SLK / SLC R172 · 2012–2016
Mercedes SLK / SLC SLK 250 d SLK / SLC R172 · 204 hp (2012 to 2016)
The Mercedes SLK / SLC SLK 250 d of the SLK / SLC R172 generation uses the OM651 2.1 CDI diesel engine with 204 hp.
Choose an engine
Identify the car and prepare its maintenanceTechnical specifications
- Fuel
- Diesel
- Power
- 204 PS / 150 kW
- Displacement
- 2 143 cm³
- Cylinders
- 4
- Engine code
- OM651 2.1 CDI
- Period covered
- 2012–2016
- Documented market
- Europe
Transmission
- Automatic · 7 speeds
Figures apply to the cited configuration and market; equipment and transmissions may vary by production date.
Specification source : [1] AutoKarnet
This version
204 hp (150 kW), rear-wheel drive, 7-speed automatic. Built from 2012 to 2016.
AutoKarnet advice
In the range
It is the only 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
Maintenance and records
Brake fluid
Every 24 months
24 months
Time-based replacement, whatever the mileage.
Source [1]Questions about this version (2)
Which engine is in the Mercedes SLK / SLC SLK 250 d SLK / SLC R172?
The OM651 2.1 CDI diesel engine (2 143 cc), 204 hp (150 kW).
AutoKarnet advice
Which oil for the Mercedes SLK / SLC SLK 250 d?
A MB 229.5 / 229.51 / 229.52-approved oil suited to the OM651 2.1 CDI engine.
AutoKarnet advice
Documentary sources
- [1] Rédaction AutoKarnet
AutoKarnet · FR · Europe · Synthèse éditoriale AutoKarnet · Accessed 09/10/2026