Wagner Tuning BMW F-Series B48 B58 Chargecooler Radiator Kit

Wagner Tuning BMW F-Series B48 B58 Chargecooler Radiator KitThe Wagner Tuning B48 B58 Chargecooler Radiator Kit is a high capacity cooling upgrade designed to improve intake air temperature control on BMW F Series models equipped with the factory water to air intercooler system. The OEM auxiliary radiator can become heat soaked during spirited driving, tuned applications or track use leading to higher IATs and reduced performance. Wagners uprated radiator increases cooling volume, improves thermal efficiency

The Wagner Tuning B48/B58 Chargecooler Radiator Kit is a high-capacity cooling upgrade designed to improve intake air temperature control on BMW F-Series models equipped with the factory water-to-air intercooler system. The OEM auxiliary radiator can become heat-soaked during spirited driving, tuned applications or track use — leading to higher IATs and reduced performance.

Wagner’s uprated radiator increases cooling volume, improves thermal efficiency and delivers more stable charge temperatures, making it a highly effective supporting modification for both standard and tuned B48/B58 engines.

Key Features

• Enlarged, high-efficiency core for increased cooling capacity

• Optimised bar-and-plate construction for rapid heat dissipation

• Direct bolt-on upgrade using factory mounting points

• Reduces chargecooler coolant temperatures for more stable IATs

• Ideal for tuned cars or high-load driving conditions

• CNC precision-welded aluminium end tanks for strength and durability

• Compatible with the OEM water-to-air intercooler system

• Designed for both fast-road and track applications

Compatibility

BMW F-Series (B48 2.0 Turbo Models)

• 120i / 125i

• 220i / 230i

• 320i / 330i

• 420i / 430i

BMW F-Series (B58 3.0 Turbo Models)

• M140i (F20/F21)

• M240i (F22/F23)

• 340i (F30/F31/F34)

• 440i (F32/F33/F36)

• X3 M40i / X4 M40i (selected F-Series variants)

(Fits most F-Series chassis using the factory chargecooler system. Check vehicle-specific fitment if unsure.)

Ideal For

• Tuned B48/B58 engines running Stage 1, Stage 2 or hybrid turbos

• Fast-road and track-driven cars where cooling consistency is essential

• Drivers experiencing rising intake temperatures under sustained load

• Cars upgraded with aftermarket intercoolers, downpipes or software

• Owners wanting improved reliability from the factory water-to-air system

Why Choose the Wagner Chargecooler Radiator Kit

As power and boost levels increase, the factory chargecooler system can struggle to manage heat — particularly on tuned cars or during extended high-load driving. Wagner’s upgraded radiator increases coolant volume and improves thermal efficiency, resulting in lower and more stable intake air temperatures.

This upgrade not only helps maintain peak power for longer but also improves engine safety by reducing thermal stress. With proven performance, OEM-style fitment and high-quality construction, Wagner’s chargecooler radiator is one of the best supporting mods available for the B48/B58 platforms.

Installing / Notes

• Direct OEM replacement; uses stock hoses and fittings

• Professional installation recommended

• Coolant bleeding required after installation

• Works with OEM and aftermarket intercooler/chargecooler components