BMW X5: Emissions Management
BMW X5 (G05) 2019-2026 Service & Repair Manual / Engine Service Information / Emissions Management
The N54 and N52KP meet ULEV II requirements for 2007. There are not many changes to the emission systems on these engines. The N54 engine has 2 underbody catalysts in addition to the "near engine" catalysts already in use from the N52.
The N51 engine, however, is a SULEV II compliant engine which meets the 2007 requirements. In addition to the 5 existing SULEV states of California, New York, Maine, Massachusetts, and Vermont - four states have been added for 2007. These states include, Connecticut, Rhode Island, Oregon and Washington State.
The N51 emissions measures include:
- Secondary Air System with mini-HFM
- Radiator with "Prem-air" coating
- Lower compression ratio (10:1) via modified combustion chamber and pistons
- Underbody catalyst in addition to "near engine" catalyst
- Activated carbon air filter in air filter housing
- Steel fuel lines with threaded fittings and sealed fuel tank
- Crankcase ventilation system integrated into cylinder head cover
- Purge system piping made from optimized plastic
NOTE: The SULEV II information above is only preliminary and is accurate as of 8/06.
Additional information will be released as it becomes available.
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Performance Controls
Cooling System
The cooling system of the N54 engine consists of a radiator circuit and an
isolated oil cooling circuit. The fact
that there is an isolated oil-cooling circuit ensures that heat is not
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Vehicle tool kit
The onboard vehicle tool kit is located under the
cargo floor panel.
Wiper blades
Safety information
NOTICE
The window may sustain damage if the wiper
falls onto it without the wiper blade installed.
There is a risk of damage to property, among
other potential damage. Hold the wiper firmly
when ch
Air Conditioning Unit Disinfectants
A musty odor may be detected in the vehicle, particularly when the air
conditioner is first switched on.
This is caused by microorganisms growing on the evaporator from moisture
condensation.
A disinfectant can be applied to the air conditioning system:
"Airguard" by J. J. Products, Inc.; "Airse
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