DI Diesel Engines M57/M67 - Common Rail Sec. 6 P.1
Course contents/Background material
Cooling system
Brief description
The coolant circuit is designed to provide long-term protection
against frost and corrosion. The design of the M57 is identical to
that of the M51 and in the M67 to that of the M62.
The cooling system has been adapted to the new requirements
concerning the cooling capacity and the modified environment
(common rail, injection system).
Requirements and Objectives
The following requirements and objectives apply to the cooling
system:
• Requirements
- Adaptation to injection system
(common rail)
- Simple design (same concept as M51 and M62)
- All connection points for water-carrying hoses
designed as plug-in connections as on the M47
- Further reduction of emissions and fuel consumption
• Objectives
- Provision of optimum cooling capacity under all
operating conditions
- Easy-to-service layout
© BMW AG, Service Training
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