BMW 5 Series: Care
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Washing the vehicle
General information
Regularly remove foreign objects such as leaves
in the area below the windshield when the hood
is raised.
Wash your vehicle frequently, particularly in winter.
Intense soiling an
Vehicle care products
General information
BMW recommends using vehicle care and
cleaning products from BMW. Suitable care
products are available from a dealer's service
center or another qualified service center or repair
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Coolant pump
The layout and function of the coolant pump have been revised and adapted to
match the cooling
concept of the Bx8 TU engines.
Coolant pump, Bx8TU engine
Pressure relief valve closed (pressure < 2.1 bar)
Pressure relief valve opened (pressure > 2.1
Cold-start phase
Point A in the heat management module circuit diagram designates the cold
start with an engine that
has completely cooled down.
Cold-start phase, Bx8TU engine
In the cold-start phase, the coolant circulates exclusively via a bypass in
the coolant pump. The rotary
valve in the heat management mod
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