Releasing chain tensioner • Unscrew left-hand end cover • Release M6 screw at chain tensioner in order to reduce the oil pressure in the chain…
Category: BMW M57
Setting ignition TDC at cylinder No. 1 We recommend the following procedure in order to check the valve timing in assembled status, i.e. with the…
Engine smooth running control procedure The signal from the crankshaft position/rpm sensor is used to evaluate the rotation of the crankshaft on completion of each…
General The control unit electronics run a self-test commencing as soon as terminal 15 is activated; thereafter, system monitoring is continuous. Errors are stored in…
Their programming prepares the DDE control units 4.0 and 4.1 for operation in the engines of different vehicles. It is this programming which produces the…
The DDE control unit automatically performs several self-tests to ensure reliable operation. In addition to the self-test at terminal 15 “ON” and constant background checks,…
Activation and deactivation of the air-conditioning compressor depends on a number of vehicle and control-unit states. When high torque is needed for brief period (pulling…
The electric fuel pump (EKP) and the rail pressure control valve (DRV) are similar in terms of activation. Both can be energised for only a…
Electric engine fan control calculates the setpoint speed for the electric fan. The engine-fan setpoint speed is derived from a characteristic curve as a function…
Boost pressure control has the task of controlling the turbocharger with variable turbine geometry (VNT). Boost pressure control comprises: • Driving-style classification • Setpoint calculation…