Buy OEM BMW Part # 17135A1BD89 (17-13-5-A1B-D89, 17117639024, 17132754264). Screw plug, expansion tank. Cooling circuit, e-motor electronics; Coolant hoses, charge air; Expansion tank, intercooler

Hybrid 5 Sedan
Hybrid 7 Automatic (N55) Sedan
Hybrid 7L Automatic (N55) Sedan

M5 Sedan
M6
M6 Convertible
M6 Coupe

Hybrid 7 Automatic (N63) Sedan
Hybrid 7L Automatic (N63) Sedan

X5 M (S63)
X6 M (S63)

760i Automatic (N74) Sedan
760Li Automatic (N74) Sedan
760LiS Automatic (N74) Sedan

Hybrid 3 Sedan

Hybrid X6

Hybrid X6

550i Automatic (N63)
550i Sedan
550i Wagon
550iX Automatic (N63)
550iX Sedan
650i Convertible
650i Coupe
650iX Convertible
650iX Coupe
750i Automatic (N63) Sedan
750iX Automatic (N63) Sedan
750Li Automatic (N63) Sedan
750LiS Automatic (N63) Sedan
750LiX Automatic (N63) Sedan
BMW ALPINA B7 Sedan
BMW ALPINA B7L Sedan
BMW ALPINA B7LX Sedan
BMW ALPINA B7X Sedan
X5 50iX (N63)
X5 50iX (N63N)
X5 50iX 4.0 (N63N)
X5 50iX 4.4 (N63N)
X6 50iX (N63)
X6 50iX (N63N)
X6 50iX 4.0 (N63N)
X6 50iX 4.4 (N63N)

550i Automatic (N63N)
550i Sedan
550i Wagon
550iX 4.0 Automatic (N63N)
550iX 4.4 Automatic (N63N)
550iX Automatic (N63N)
550iX Sedan
650i Automatic (N63N)
650i Automatic (N63N) Convertible
650i Automatic (N63N) Coupe
650i Convertible
650i Coupe
650iX 4.0 Automatic (N63N)
650iX 4.0 Automatic (N63N) Convertible
650iX 4.0 Automatic (N63N) Coupe
650iX 4.0 Convertible
650iX 4.0 Coupe
650iX 4.4 Automatic (N63N)
650iX 4.4 Automatic (N63N) Convertible
650iX 4.4 Automatic (N63N) Coupe
650iX 4.4 Convertible
650iX 4.4 Coupe
650iX Automatic (N63N)
650iX Automatic (N63N) Convertible
650iX Automatic (N63N) Coupe
650iX Convertible
650iX Coupe
750i Automatic (N63N) Sedan
750iX Automatic (N63N) Sedan
750Li Automatic (N63N) Sedan
750LiX 4.0 Automatic (N63N) Sedan
750LiX 4.4 Automatic (N63N) Sedan
750LiX Automatic (N63N) Sedan
BMW ALPINA B6
BMW ALPINA B7 Sedan
BMW ALPINA B7L Sedan
BMW ALPINA B7LX Sedan
BMW ALPINA B7X Sedan