37 10 001 Start-up with test run of Dynamic Drive

WARNING: This page is about a different car, the 2013 BMW X5 M, 2012 BMW X5 M, 2011 BMW X5 M, and 2010 BMW X5 M. However, it is still accessible from the selected car via links, so may be relevant.

IMPORTANT: E70/E71 vehicles only:
After replacing the valve block, Dynamic Drive expandable hose or hydraulic pump, it is essential to perform the following operations to avoid fouling/contamination in the hydraulic system:

Disconnect wiring harness from valve block (valves must be inactive)
Fill hydraulic system (if necessary)
Start engine and run for 5 minutes; turn the steering wheel from lock to lock repeatedly during this period
Engine off
Ignition ON
Reconnect valve block wiring harness
Perform start-up

NOTE: The Service function start-up of Dynamic Drive must be carried out after:

Work on the Dynamic Drive system which involved opening hydraulic lines
Replacement / programming / encoding of Dynamic Drive control unit
Replacement of lateral acceleration sensor
Learning parameters and zero point of new sensors

Bleeding hydraulic steering

IMPORTANT: Adhere to the utmost cleanliness. Do not allow any dirt to enter the hydraulic system.
Using contaminated equipment to add fluid may introduce dirt particles into the fluid reservoir and significantly reduce the service life of the hydraulic steering system. Do not use any filler funnels or similar!
Use only Pentosin CHF11S from original containers!
The fill level may only be checked or adjusted when the engine is stopped! The oil temperature should be approx. 20 °C here.
Ensure that the cap is fully screwed in prior to the fill level check.

NOTE: To avoid mix-ups when filling with hydraulic fluid, mark the fluid reservoirs or their caps with identification marks.

CHF Pentosin CHF11S

Fig 1: Identifying Identification Marks On Fluid Reservoirs Or Caps (Pentosin CHF11S)

Courtesy of BMW OF NORTH AMERICA, INC.

Thoroughly clean fluid reservoir and its immediate surroundings
Check and correct fill level
NOTE: The fill level can come to rest above the "MAX" mark when the engine is at normal operating temperature. This is dictated by the design in that the marking on the dipstick is referred to a fluid temperature of 20 °C. With the engine at normal operating temperature (approx. 50-60 °C fluid temperature) adjust a fill height 15 mm above the "MAX" mark. Do not under any circumstances draw off the fluid to the "MAX" mark when the engine is at normal operating temperature.
Hydraulic fluid: BMW Service Operating Fluids. See INTEGRATED SUSPENSION SYSTEMS - OPERATING FLUIDS .
Start engine
Turn steering wheel left and right twice in each case up to full lock; if necessary, top up hydraulic fluid (e.g. if hydraulic system is completely drained)
Move steering wheel to straight-ahead position and turn off engine
Check and correct fill level with engine stopped
Check hydraulic system for leaks

Performing start-up with test run

WARNING: Danger of injury!
Vehicle executes heavy rolling motions during start-up! Therefore observe the following specifications without fail:

Do not allow any persons to remain in the vehicle or directly on the vehicle
Keep the vehicle doors closed.
Maintain a safety distance around the vehicle of 1 meter to persons, objects, walls, etc.
Vehicle must be standing horizontally with all wheels on a firm surface
Do not under any circumstances carry out start-up on a vehicle hoist, wheel alignment analyzer or similar!
Avoid heavy loads

Check load; if necessary, remove load from the vehicle
Bring engine up to operating temperature
NOTE: Hydraulic fluid temperature must be between 50 °C and 70 °C (vehicle at normal operating temperature).
Connect vehicle to DIS or MoDiC
Start start-up in SERVICE FUNCTIONS. Follow instructions in the DIS.
Check and correct fill level with engine stopped