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Mercedes W177 C118 Water Pump Belt Tensioner M282 Petrol A2822010300
SKU: A2822010300
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Used
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Mercedes W177 C118 Water Pump Belt Tensioner M282 Petrol is an original accessory drive component designed for M282 petrol engines in A-Class and CLA models. The precisely tuned operating characteristics of the tensioner ensure stable guidance of the water pump belt, which translates into reliable engine cooling and predictable performance of the power unit. This used OEM component is a sensible choice for drivers looking for a proven solution at an attractive price.
Specifications and technical data
- SKU: A2822010300
- Mark: Mercedes (Genuine OE)
- Condition: Used
- OEM Part Number: A2822010300
- Substitutable numbers: A2822010300, A 282 201 03 00
- Fuel type: Petrol
- Part type: Timing Belt Tensioner
- Category: Tensioners & Pulleys
Purpose and function in the accessory drive system
The water pump belt tensioner in the M282 engine is responsible for maintaining the proper tension of the belt driving the coolant pump. Stable tension minimizes slippage, reduces noise, and protects mating components from accelerated wear. In the petrol units used in the Mercedes W177 and C118, this has a direct impact on:
- maintaining the correct engine operating temperature,
- even load distribution on the water pump bearings,
- reducing the risk of the belt slipping off or breaking,
- stable operation of accessories across a wide RPM range.
Benefits of using an original Mercedes tensioner
Using an original tensioner in the M282 petrol engine allows you to maintain the factory operating parameters of the cooling system. The component has been designed for the specific belt routing geometry, which ensures that it:
- provides the correct belt path relative to the water pump and other pulleys,
- reduces belt vibration and jerking during load changes,
- maintains stable tension under typical city and highway driving conditions.
For the user, this means more predictable operation and a lower risk of sudden cooling system failure, which is particularly important in modern, high-output petrol engines.
Product characteristics and condition
The tensioner belongs to the Tensioners and pulleys group, which are wear-and-tear components responsible for the proper guidance and tensioning of belts in the accessory drive system. The offered unit is used, which allows for lower repair costs while maintaining the original design and fitment for the M282 engine. This solution is particularly beneficial for:
- repairs following a belt or water pump failure,
- preventive replacement of belt-guiding components,
- restoring the factory configuration after previous modifications.
Choosing a used OEM tensioner is a compromise between economy and maintaining compliance with the manufacturer's factory specifications.
Selection and installation in the M282 engine
When selecting a tensioner for a Mercedes with an M282 petrol engine, it is crucial to match it to the specific version of the unit and the accessory layout. In practice, this means verifying compatibility with the OEM part number and interchangeable numbers in service documentation or the manufacturer's catalog. A correctly selected tensioner:
- fits the factory mounting points on the block and accessories,
- works with the intended belt length and profile,
- does not require modifications or adaptations during installation.
Installation by an experienced service center is recommended, following the manufacturer's procedures, correct bolt tightening torques, and inspection of the belt and other pulleys.
Mercedes tensioners and pulleys – expansion and system modernization
If you are planning a comprehensive repair or modernization of the engine area in your Mercedes and need other components from the same group, such as additional guide pulleys, accessory belt tensioners, or belt routing elements, check out the available parts in the Mercedes tensioners and pulleys category.
Technical support and accessory maintenance
When working on the accessory drive system, it is also worth paying attention to the condition of the alternator, as its load affects the operation of the belt and tensioner. Additional tips regarding the approach to regeneration and replacement of accessory components can be found in the article When is it worth replacing an alternator with a used one: a practical guide for drivers, which helps assess the cost-effectiveness of using used components in modern cars.
Delivery details
Ship to: United Kingdom
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Estimated delivery dates include sellers dispatch time, origin postcode,destination postcode and time of acceptance, and will depend on the postage service selected and receipt of cleared payment. Delivery times may vary, especially during peak periods.
Will usually dispatch within same working day if paid before 14:00 BST (excludes weekends and holidays). Expected dispatch time may vary and is based on sellers order cut-off time.
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