Mercedes-Benz CLS-Class C218 / W219 (2005 - 2017) Drive Belt Tensioner
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- Brand Aftermarket
- Type Belt Tensioners
- Make Mercedes-Benz
- Model CLS-Class
- Series C218 [2011 - 2017] and W219 [2005 - 2010]
This direct replacement drive belt tensioner is engineered specifically for Mercedes-Benz CLS-Class C218 / W219 (2005 - 2017) vehicles. A failing tensioner can lead to belt slippage, annoying squealing sounds, and costly damage to your engine's accessory components. Our replacement unit ensures proper belt tension to maintain reliable operation of your alternator and other critical systems.
Design & Construction
- Durable Construction: Made with high-strength steel or aluminum for long-lasting performance under engine stress.
- Smooth Operation: Ensures optimal belt tension to minimize vibration, slippage, and operational noise.
- Direct Fitment: Precisely engineered to match factory specifications for a perfect fit and straightforward installation.
- Tension Control: Delivers consistent belt pressure for enhanced performance of engine accessories.
- Extended Belt Life: Helps prevent premature wear of serpentine or timing belts.
Product Specifications
- Fitment: Direct Replacement
- Driven Unit: Alternator
Vehicle Applications
- Compatible Models: Mercedes-Benz CLS-Class C218 / W219 models from years 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016 and 2017. Compatible with Coupe and Estate body styles / AWD and RWD drive types.
- Variant: CLS 350 BlueTEC / CLS 350 CDI / CLS 350 d 4-matic / CLS 320 CDI
- Engine: 24v 185kw/190kw/195kw Diesel
What's Included
- 1 x Drive Belt Tensioner
Perfect solution for CLS-Class owners dealing with tensioner problems - restores proper belt function and protects valuable engine accessories from damage.
Given the importance of this component for vehicle performance and safety, we recommend confirming fitment with your exact vehicle specifications. We strongly advise having this component installed by a qualified technician.
Every order except for oversized items will automatically receive free standard shipping, so you can get your items without any additional cost.
If you need your order faster, express and same-day delivery options are available at checkout. Express and same-day delivery fees vary depending on the product and delivery location, so we’re unable to provide a standard rate in advance — the cost will be shown once your items are added to your cart.
We aim to provide same-day dispatch for all weekday orders placed before 12:00 PM (AEST during standard time or AEDT during daylight saving).
Once your order has been dispatched, you will receive an email notification with your tracking details. Tracking information may take up to 24 hours to appear, and please check your spam or junk folder if you don’t see the email in your inbox. Tracking is always included for orders above $50. For orders below $50, tracking will be provided if available.
For international orders, please note that shipments may be subject to import duties, taxes, and customs processing fees, which are applied once the package reaches its destination country. These charges are not included in our shipping fees and are the responsibility of the recipient.
Important Notes: While we strive to provide accurate delivery estimates, delays may occur due to stock availability, courier conditions, or other unforeseen factors. We appreciate your understanding and patience in these situations. Regardless of order value, every item is packed with care and delivered as promptly as possible.
All orders are covered by our free Standard Return & Refund Policy.
If you change your mind, you can return any unused, uninstalled product in its original condition at any time (there is no time limit) for store credit.
If your item arrives defective, damaged, or incorrect, please notify us within 30 days. We cover return shipping for confirmed defects or errors and will provide either a replacement or a full refund to your original payment method.
For change-of-mind returns, you’ll need to cover the return shipping cost. To start the process, simply fill out the required fields in our contact form.
All approved change-of-mind returns are processed as store credit only. Once your item has been received and inspected, processing may take up to 15 business days.
Every return is handled with care to ensure a fair and reliable process.
If your item arrives defective, damaged, or incorrect, please notify us within 30 days. We cover return shipping for confirmed defects or errors and will provide either a replacement or a full refund to your original payment method.
OEM-Standard Belt Tensioners
Don't settle for cheap replacements, choose lasting reliability. Built to OEM specifications for precise tension control and long-term reliability. Each unit is tested for load capacity, bearing alignment, and damping performance to ensure smooth, vibration-free belt operation. Designed to maintain consistent tension under all temperature and load conditions.
Select a numbered point above
Tap any marker to discover the engineering behind each component.
Component Breakdown
Engineering features explained
Precision Pulley Wheel
Machined to exact OEM tolerances for optimal belt tracking and reduced friction. The pulley surface is treated for wear resistance and balanced to prevent vibration at high engine speeds.
High-Load Bearing Assembly
Sealed bearing system provides smooth, low-resistance rotation and long service life. Factory-lubricated and tested for noise, vibration, and harshness (NVH) to ensure silent operation and durability under load.
Heavy-Duty Spring Mechanism
Internal torsion spring maintains consistent belt tension through dynamic load changes. Designed for precise deflection and recovery to prevent belt slippage or premature wear.
Reinforced Mounting Bracket
Die-cast aluminium or steel bracket provides structural rigidity and perfect alignment with the engine drive system. Tested for thermal expansion and vibration resistance to ensure reliable operation in demanding environments.
Corrosion-Resistant Coating
Protective surface finish guards against oxidation, coolant exposure, and road contaminants. Extends the life of both pulley and housing components for consistent performance over time.