BMW X5 Owners & Service Manuals

BMW X5: Engine Mechanical Overview

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 Crankcase

As far as the physical appearance and dimensions, the crankcase on the N54 is the same as the N52. The main change is in the materials, the N54 uses an all aluminum alloy crankcase. There is also ca

 Bolts

Although, the N54 engine has an all aluminum crankcase, many of the bolts are still aluminum as on the N52. This is to reduce any potential confusion between steel and aluminum bolts. Some bolts, fo

 Cylinder Head Cover

As stated before, the cylinder head cover used on all of the new NG6 engines is made from plastic. However, the design differs between the engines due to engine equipment. For example, the N54 engi

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 Radiator, Expansion Tank

CHECKING COOLING SYSTEM FOR WATER LEAKS Special tools required: 17 0 101 17 0 100 TESTER 17 0 113 17 0 100 TESTER 17 0 114 17 0 100 TESTER WARNING: Danger of scalding! Only perform this work after engine has cooled down. Checking pressure drop in cooling system: Open cap on coolant expansion ta

 Replacing Safety Pressure Switch

WARNING: Avoid contact with refrigerant and refrigerant oil. Follow safety instructions for handling refrigerant R 134a. Follow safety instructions for handling refrigerant oil. IMPORTANT: Risk of damage! Restart engine only when A/C system has been correctly filled. If A/C system is opened for mo

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