Wagner Tuning Competition Water Cooler Kit for AMG A 45, CLA 45 & GLA 45 (M 133) – 78% more volume incl. certificate Experience maximum performance with the ultimate upgrade for your Mercedes AMG A 45, CLA 45, and GLA 45! The Wagner Tuning Competition Water Cooler Kit is the key to stabilizing and increasing the performance of your 2.0L M 133 turbo engine. The massive 78% increase in volume drastically lowers the coolant temperature and ensures maximum performance. Why this water cooler kit is a must-have for your AMG M 133: Massive volume expansion: The kit (front and side coolers) expands the total cooler volume of the standard system by an impressive +78%. Direct performance increase: By effectively lowering the coolant temperature in the indirect intercooler circuit, intercooling is optimized, resulting in consistent additional power. Competition technology: New competition racing nets ensure optimum heat transfer and provide sufficient airflow to cool adjacent components. Approved & legal: Includes parts certificate for maximum safety and uncomplicated registration. Durable and protected: Equipped with a heat-conducting anti-corrosion coating for long-term and reliable cooling. Plug & Play: Easy installation thanks to detailed installation instructions (virtually plug & play). Technical detail: The 2.0L M 133 turbo engine in models such as the AMG A 45 uses an indirect intercooler circuit. In this system, the charge air is not cooled directly by the airflow, but via a separate cooling water circuit. Wagner Tuning auxiliary water coolers are the ideal solution for lowering the temperature of this cooling water, which significantly improves the cooling performance of the charge air and prevents the engine from entering heat soaking mode. Technical details in direct comparison (OEM vs. Wagner Tuning) The kit consists of an enlarged front cooler and optimized side cooler. Original part (OEM) Front cooler volume (V) = 3.99 liters Dimensions = 640 x 390 x 16 mm Side radiator volume (V) = 1.79 liters Dimensions = 248 x 180 x 40 mm Wagner Tuning Front radiator volume (V) = 7.14 liters - Increase: +78.9% Dimensions = 616 x 362 x 32 mm Side cooler volume (V) = 3.15 liters - Increase: +75.9% Dimensions = 252 x 184 x 68 mm Overall advantage: The sum of all individual improvements results in an impressive overall increase in cooling volume of 78%. The Wagner Tuning Competition water cooler kit fits all 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) Part number: 400001001 Order now and take your driving experience to a new level – with parts certification!