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.
READ NEXT:
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
SEE MORE:
System Wiring Diagrams
ANTI-THEFT
Fig. 1: Access/Start Circuit (1 of 3)
Fig. 2: Access/Start Circuit (2 of 3)
Fig. 3: Access/Start Circuit (3 of 3)
Fig. 4: Anti-theft & Central Locking Circuit (1 of 2)
Fig. 5: Anti-theft & Central Locking Circuit (2 of 2)
BODY CONTROL MODULES
Fig. 6: Body Control Modules Cir
Android Auto preparation
Principle
Android Auto allows the operation of certain
functions of a compatible smartphone via voice
control and iDrive.
General information
The range of services offered depends on the
country.
Functional requirements
Compatible Android smartphone: Samsung
or Google smartphone with Android 10 o
© 2019-2026 Copyright www.bmwx5info.com
