If you have the ride height adjustment option, you will see a 3 position switch just to the left of the steering column on the dash. Also take a look in your front wheel well and see if you have coil springs. If you do, you don't have the adjustable ride height option. The air suspension has no springs, front or rear, just the air bag strut assemblies.

Not sure about the 45 mph threshold.

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D. Jeff Gomon

2005 X5 4.4i Sport- Highland Green Metallic / Natur
2005 330ci ZHP- Imola Red / Alcantara
1991 ///M5 - Alpine White / Black
1970 BMW 2002 - Red / Tobacco


"It's not how fast you drive, it's how you drive fast!"

Only 4.8is has all air suspension.

So if the 4.8 is the only X w/ full air suspension, what's the point of this Intrax controller...make the ass sag like it has a full load, or jack it up like a muscle car?

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Text from BMW docs:
Self-leveling rear air suspension(optional 3.0i, standard 4.4i &
4.8is)Air springs replace conventional coil springs in the rear suspension.
To keep the X5 level even when heavy loads are carried
(cargo area or trailer tongue load), ride-height sensors recognize
changes in the vehicle’s attitude and signal an electrically powered
air compressor to increase or decrease the pressure in the
air springs.

Adjustable ride height (optional 3.0i & 4.4i, requires
Sport Package; standard 4.8is)
The 3.0i option includes the self-leveling rear suspension and
adjustable ride height; as selfleveling rear air suspension is
standard on the 4.4i, the option for that model is for adjustable
ride height only and is therefore priced lower. The full system
with adjustable ride height is standard on the 4.8is.
With this system, air springs are the springing medium at all four
wheels. Their self-leveling effect at the rear is as described under
self-leveling rear air suspension, above.
Adjustable ride height allows the driver to select any of three
ride heights for the entire vehicle. Via a dash switch to the left of
the steering column, the height can be set to –
• Normal
• Offroad (25 mm/1.0 in. higher
than normal) for increased
ground clearance
• Access (35 mm/1.4 in. lower
than normal) for greater ease
of entry and exit.

The offroad setting can be used at speeds up to approximately
31 mph, at which speed the vehicle automatically returns to
the normal setting if offroad has been selected. The access
setting remains effective until the vehicle reaches approximately
22 mph, or can be engaged if the vehicle is traveling approximately
16 mph or less. All adjustments occur steplessly, and the pneumatics are controlled to effect an essentially even raising or lowering at all
four wheels – although under some conditions of loading one
end of the vehicle may move slightly more quickly than the
other. If the front or rear moves more quickly, the control system
will stop motion there until the other end catches up. Three LEDs indicate the system’s current state:
A steadily illuminating LED indicates that a particular level has been reached; a blinking LED indicates that a level has
been selected and the system is adjusting.
If height adjustment is attempted while a trailer is attached to the
vehicle, the following occurs:
• If already at normal height, the vehicle cannot be raised or lowered.
• If at one of the other settings and the vehicle is at a standstill,
the driver can return the vehicle to normal height, after which it cannot be raised or lowered.
• If the vehicle begins moving at one of the other settings, it will
automatically return to the normal height at 22 mph (if in access) or 31 mph (if in offroad).

X5 4.8is features
4.8-liter Valvetronic V-8 engine
Whereas the 4.4i’s engine is the new 4.4-liter Valvetronic V-8, the
new 4.8is model gets an even larger, more powerful version of
this advanced engine concept.

Specially calibrated 6-speed automatic transmission
Like the 4.4i model, the 4.8is comes standard with a 6-speed
automatic transmission; its calibration, however, is sportier
and specific to this model.

Standard adjustable ride height and self-leveling
This is the only X5 model on which both the adjustable ride
height and self-leveling rear suspension (via air springs front
and rear) are standard. The 4.8is’ spring and shock-absorber
calibration is also firmer, thus sportier, than that of even a
Sport Package-equipped 4.4i model.

Incorrect, get your facts straight There are 3 settings on the Intax module: factory, reset to normal ride height @ 50 kph, and total override. You raise and lower the X at any speed, any time. Installation manual (see pg 3): http://www.dvs-one.com/4sale/ICM-20.6.103.pdf

The Intrax only works on X5 with full suspension, including 4.4i's that were produced with that option. It raises the car (front and rear) evenly. Check out my thread about my install of the Intrax module on a 2002 4.4i: http://www.Xoutpost.com/bmw-sav-foru...2002-4-4i.html

Full air was an option on the 4.4i

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"Option", not standard(required sports package).

I said option

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Thanks Zerochief for clarifying. Yes for 4.4i you would need to have the "Optioned" Adjustable ride height.

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2012 X6 ///M Sapphire Black/Black Pref Full Leather
2007 Alpina B7 - Alpina Blue II/Creme SOLD
2004 X5 4.4i - Toledo Blue/Grey SOLD
1994 300ZX TT - Black/Black

That's just how I interpreted it from Summit's wording. Sorry.

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