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Performance Side Mount Radiator

Boost cooling capacity and performance in your A45/CLA45/GLA45 AMG with Wagner’s 77% larger, plug-and-play Competition Side Water Cooler—now certified for legal, worry-free installation.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Wagner Tuning
Mfg Part #
400001006
ECS Part #
ES#4000004
Brand
Wagner Tuning

790.00
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Product Details

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Wagner Tuning Competition Side Water Cooler for AMG A 45, CLA 45 & GLA 45 (M 133) – 77% more volume incl. certificate

Experience maximum performance and thermal stability for your Mercedes AMG A 45, CLA 45, and GLA 45! The Wagner Tuning Competition side water cooler is the essential upgrade for optimizing the cooling performance of your 2.0LM 133 turbo engine. The impressive 77% increase in volume lowers the coolant temperature, improves reliability, and ensures maximum performance – now including parts certificate.

Why this side water cooler is a must-have for your AMG M 133:

Massive volume expansion: The Competition racing intercooler core expands the cooler volume of the side cooler by an impressive +77% (3.15 liters vs. OEM 1.79 liters).
Approved & legal: Now with parts certificate for maximum safety and uncomplicated registration.
Direct performance boost: Effectively lowers the coolant temperature in the indirect intercooler circuit. This improves intercooler cooling and stabilizes system thermodynamics.
Maximum heat transfer: The optimal ratio between internal and external cooling surface ensures maximum heat transfer and sufficient airflow for adjacent components.
Durability & protection: Equipped with a heat-conducting anti-corrosion coating for long-term, reliable cooling and longer system life.
Plug & play installation: Installation is straightforward and virtually plug & play thanks to user-friendly installation instructions.

Technical detail: Cooling circuit optimization for the M 133 turbo engine
The 2.0LM 133 turbo engine in models such as the AMG A 45 (W176) uses an indirect intercooler circuit that employs a separate cooling water circuit to cool the charge air. Lowering the cooling water temperature is the key to increasing performance. The Wagner Tuning side water cooler solves this bottleneck: The 77% increase in volume (3.15 liters vs. OEM 1.79 liters) massively increases the amount of coolant and cooling capacity. The result is more stable system thermodynamics over a longer period of time, which sustainably improves the performance and reliability of your vehicle, especially at high speeds and on the racetrack.

Technical data in direct comparison (OEM vs. Wagner Tuning side cooler)
The Wagner Tuning side water cooler offers decisive advantages over the standard cooler:
Volume: With 3.15 liters, the Wagner Tuning cooler offers 77% more volume compared to the OEM cooler with 1.79 liters.
Dimensions (depth): At 68 mm deep, the coolers are significantly thicker than the standard coolers at 40 mm, which enables increased cooling performance.
Cooling surface:The cooling surface (A) increases by approx. 4% to 464 cm² (vs. OEM 446 cm²).
Cooler core: A high-performance competition racing intercooler core is used.

Dimensions of OEM side radiator:
248 mm x 180 mm x 40 mm
V = 1.79 liters
A = 446 cm²

Dimensions of Wagner Tuning side radiator:
252 mm x 184 mm x 68 mm
V = 3.15 liters
A = 464 cm²

Vehicle compatibility (AMG M 133)
The Wagner Tuning Competition side water cooler is plug-and-play compatible with the following models with the M 133 engine (265-280 kW / 360-381 hp):
Mercedes Benz A 45 AMG W176 (2013-2018)
Mercedes Benz CLA 45 AMG C117 (2013-2018)
Mercedes Benz GLA 45 AMG X156 (2014-2019)

This Part Fits the Following Vehicles

Make Model Submodel Engine Year Chasis Special Fitment Notes
Mercedes Benz CLA45 AMG 4Matic L4 2.0L 2015 117.352 Use vehicle selector to confirm fitment
Mercedes Benz CLA45 AMG 4Matic L4 2.0L 2016 117.352 Use vehicle selector to confirm fitment
Mercedes Benz CLA45 AMG 4Matic L4 2.0L 2017 117.352 Use vehicle selector to confirm fitment
Mercedes Benz CLA45 AMG 4Matic L4 2.0L 2018 117.352 Use vehicle selector to confirm fitment
Mercedes Benz CLA45 AMG 4Matic L4 2.0L 133.980 2019 117.352 Use vehicle selector to confirm fitment
Mercedes Benz CLA45 AMG Base I4 2.0L 133.980 2014 117.352 Use vehicle selector to confirm fitment
Mercedes Benz GLA45 AMG 4Matic L4 2.0L 2015 156.952 Use vehicle selector to confirm fitment
Mercedes Benz GLA45 AMG 4Matic L4 2.0L 2016 156.946 Use vehicle selector to confirm fitment
Mercedes Benz GLA45 AMG 4Matic L4 2.0L 2017 156.952 Use vehicle selector to confirm fitment
Mercedes Benz GLA45 AMG 4Matic L4 2.0L 2018 156.952 Use vehicle selector to confirm fitment
Mercedes Benz GLA45 AMG 4Matic L4 2.0L 133.980 2019 156.952 Use vehicle selector to confirm fitment
*The above product applications have been written by ECS Tuning. All warranties, product application, fitment, and performance are the responsibility of ECS Tuning. For additional information see the terms of use.

This product is not eligible for Lifetime Replacement

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Return and Exchanges

Need to set up a return? Click here to begin: Return Process

All you need is your order number and email address.


New/Unused Product Returns

ECS Tuning will accept returns for unused products within 90 days of the ship date for a refund to the original payment method used. The customer is responsible for the return shipping costs and fees. If selecting to use a prepaid shipping label, the shipping cost will be deducted from the total refunded amount. All new/unused products must be new, unused and must be in the original packaging, including labeling, manuals, hardware, etc. Special order parts are non-refundable.

In the event that we find an error on our website or on behalf of an ECS Tuning Representative, we will provide a return shipping label from the original delivery location.

Refused Packages

Any domestic orders that are returned to ECS Tuning as refused by receiver or non-deliverable will be subject to a return handling fee and will be processed as a return in compliance with our standard return policy, including a 15% restocking fee.

Any international orders that are refused at the time of delivery will be subject to carrier abandonment of the package, at which time the ordered products would be discarded by the carrier. The customer will not be refunded for the value of the order and the discarded products are no longer retrievable.

Return Process

Return Process

ECS Tuning now offers an online returns solution! To get started, simply log into your ECS Tuning account, Click the "View Orders" button on the My Account home page and select the order that you wish to make a return on to begin. If you have any questions, feel free to reach out to our Customer Service Team for assistance!

Please note: Refunds will be processed to the original payment method used on the order or to an in store credit, respective to the type of return that is made as well as any pre-existing arrangements with an ECS Tuning Customer Service Representative. In the event that multiple forms of payment were used, we will refund the value to an in store credit. In the event that a return label is provided, these charges may be deducted from the total refund you receive.

Original shipping costs are non-refundable and the buyer is responsible for return shipping charges. ECS Tuning will not accept COD deliveries.


All in store credit balances will expire after one year from the original purchase date.

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Shipping Policy

Free Shipping On Orders $49 & Up

Items marked with a 'Free Shipping On Orders $49 and Up' logo may qualify for free standard economy ground shipping to the contiguous United States (48 states) for most orders with a value greater or equal to $49.00 USD. Oversized products and direct ship products are excluded from this offer unless otherwise noted.

Free Shipping

Items marked as 'Free Shipping' may qualify for free standard economy ground shipping to the contiguous United States (48 states). Oversized products and direct ship products are excluded from this offer unless otherwise noted.


The policies listed above are subject to change at any time without notice.

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Lifetime Replacement

Want to know more about our Lifetime Replacement program?

Click here to learn more.

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Why You Should Shop From ECS Tuning

ECS Tuning stands out as more than an automotive parts supplier-it's a vibrant community fueled by a shared passion for cars. Born from the enthusiasm of car lovers, we offer an unmatched understanding and commitment to the automotive world, providing high-quality parts and accessories sourced from our own experiences. Our selection is meticulously crafted to meet the highest standards of performance, quality, and design, catering to both the latest trends and classic styles.


Our distinct advantage lies in our passionate team and comprehensive support, offering expert advice and seamless service from selection to installation. Shopping with ECS brings exclusive perks, including our Lifetime Replacement Guarantee and free shipping on orders over $49, enhancing the value of every purchase. As a central hub for car enthusiasts, ECS Tuning fosters a rich community where ideas and experiences flourish, transforming us from a mere supplier into a platform where automotive dreams come to life.

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Cancellation Policy

At ECS Tuning, we understand that plans can change. That's why we offer a flexible cancellation policy for our customers. You may cancel your order at any time before you receive the shipment confirmation. This policy is designed to provide you with peace of mind and the flexibility to make adjustments to your purchases as needed. Should you decide to cancel your order, simply reach out to our customer service team, and we will assist you with the process swiftly and efficiently.

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Manufacturer names and/or part numbers are used only for identification purposes.

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