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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Green lights - Indicator/warning lights
Green lights
Safety belt reminder for rear seats
The safety belt is buckled on
the corresponding
rear seat.
The displays may vary depending
on the
equipment version and country variant.
Turn signal
Turn signal switched on.
Unusually rapid blinking of the indicator
light indicates that a turn sig
NG6 Engine
2007 NG6 Engine
Model: All with NG6-cylinder from 2007
Production: from 9/2006
NG6 ENGINE
Previously in 2005, BMW introduced the beginning of a new generation of six
cylinder engines with the N52.
Now, for the 2007 model year, BMW has 3 new variations of the NG6 engine family.
The first of the ne
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