Tensioner -V Belt (Topran) (M271 CGI) (Mercedes-Benz C-Class W204 / E-Class W212 / E-Coupe W207 / SLK-Class SLC-Class R172) is a crucial component in the vehicle’s belt drive system. It maintains the correct tension on the V-belt, ensuring reliable power transfer from the engine to various accessories like the alternator, water pump, and air conditioning compressor.
This unit is designed for specific Mercedes-Benz models including the C-Class W204, E-Class W212, E-Coupe W207, and SLK-Class/SLC-Class R172 with the M271 CGI engine. When replacing the tensioner, confirm compatibility by comparing with the original part or vehicle specification to avoid mismatches. Proper tension prevents belt slippage, noise, or premature wear.
Look for signs of a worn tensioner such as belt squealing, looseness, or visible damage. Using this Topran tensioner in the affected Mercedes-Benz models helps restore efficient belt operation and engine accessory function.
- Fits Mercedes-Benz with M271 CGI engine variants
- Matches specific chassis codes W204, W207, W212, R172
- Maintains V-belt tension for reliable accessory performance
This tensioner is a key replacement part during belt service or when diagnosing related engine accessory issues. Always compare the part number and application to ensure it fits your vehicle’s exact configuration.
Need help matching this item to your vehicle? Use more V – Belt, Vehicle Parts Finder or Request a Part with your VIN, engine number, part number or clear photos.





