auto diagnostic advisor

Animated scheme of a four stroke internal combustion engine, Otto principle: Suction stroke - Air and vaporised fuel are drawn in Compression stroke - Fuel vapor and air arecompressed and ignited. Power stroke - Fuel combusts and piston is pushed downwards. Exhaust stroke - Exhaust is driven out.

Variable valve timing (VVT) solenoid One {Acronym.VVT} solenoid is installed for the intake camshaft and one for the exhaust camshaft. The {Acronym.VVT} solenoids are used to regulate the camshaft adjustment units, which in turn adjust the valve timings in the early or late directions. In this way the engine performance is increased and internal exhaust gas recirculation is realized. The {Acronym.VVT} solenoids for the intake and exhaust camshafts differ only in terms of the position of the fastening point by which they are fixed to the camshaft adjustment bridge. Via the {Acronym.VVT} solenoid, under the prevailing EOP , a defined quantity of engine oil is allowed into and out of the camshaft adjustment units. In this way the valve timings are adjusted according to the operating condition of the engine. The {Acronym.VVT} solenoids are actuated via a PWM signal by the PCM . A----Bore hole for connection to chamber A B----Bore ...

Diagnosis and Testing Inspection and Verification Verify the customer concern by operating the parking brake system. Visually inspect for obvious signs of mechanical or electrical damage. Visual Inspection Chart Mechanical Electrical Parking brake control. REFER to:  Parking Brake Control  (206-05 Parking Brake and Actuation, Removal and Installation). Cable and conduit. REFER to:  Parking Brake Rear Cables  (206-05 Parking Brake and Actuation, Removal and Installation). Parking brake warning circuit. REFER to:  Instrument Panel Cluster (IPC)  (413-01 Instrument Panel Cluster (IPC), Diagnosis and Testing). If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step. If the concern is not visually evident, verify the symptom and refer to the Symptom Chart. Symptom Chart Symptom Possible Sources Action The parking brake will ...

Description and Operation Smart Regenerative Charging Smart Regenerative Charging is an intelligent charge control system that calculates and regulates the set generator voltage. The basic idea of the system is to increase the generator charge voltage when the vehicle is decelerating and reduce it when it is accelerating. This means that during the acceleration phase, there is no additional energy demand as a result of having a high generator load; however generator load is increased when the vehicle is decelerating. This strategy enables further fuel savings to be achieved. Battery Monitoring Sensor The Battery Monitoring Sensor continuously monitors the condition of the battery. The sensor is equipped to vehicles which have Smart Regenerative Charging or Start-Stop. These systems require knowledge of the battery state of charge. The Battery Monitoring Sensor is the sensor used to provide this information. Battery Monitoring Sensor connection The Battery Mo...

Rain sensor The automatic windshield wipers must be switched off before the vehicle is driven into a car wash. If the windshield is iced up, the wipers may only be activated by the rain sensor after the windshield has been completely defrosted. The rain sensor is an optical measuring instrument. Contamination such as oil, grease, dust or faulty wiper blades will prevent the system from working properly. Before switching on the automatic windshield wipers, the windshield must be clean in the area of the rain sensor. The rain sensor is built into a housing which is mounted behind the rear view mirror on the windshield. The rain sensor (1) consists of an opto-electronic measuring and evaluation circuit. The sensor can calculate the amount of precipitation falling on the windshield and request that the windshield wipers are switched on. On the basis of the information provided by the rain sensor, the windshield wipers are then set to the required wipe speed by the gen...

Combined rain sensor/light sensor   Item Part Number Description 1 - Lens 2 - Front light sensor 3 - Ambient light sensor The combined rain sensor/light sensor is attached to the windshield, near the interior rear view mirror. The ambient light sensor determines the general light intensity. For this purpose, it detects the light over as wide an angle as possible, without taking the direction of incidence into account. The front light sensor determines the light intensity directly in front of the vehicle. Automatic headlamps The low beams, side lamps, license plate lamps as well as the instrument cluster and instrument panel illumination are switched on automatically if all the following conditions are met: Ignition switch in the "II" or "III" position Light switch in the "AUTO" position Detected ambient light conditions below a stored threshold value They are switched on or off by the GE...

Generic electronics module (GEM) The generic electronic module is installed on the passenger's side underneath the dash panel. It replaces separate components such as the central locking module, the timer relay and the fuse box in the passenger compartment. It consists of a power distribution section (including fuses and relays) and an electronic control module, which controls the operation of most of the electronic convenience systems. New vehicles are supplied with different versions of the GEM (depending on the equipment specification of the vehicle). Only one version is available for service repair work. When installing a replacement GEM it needs to be configured for the specific vehicle. The following functions are controlled or executed by the GEM if the battery voltage is between 9 and 16 V. Battery saving function Current distribution Exterior lighting (except the adaptive front lighting function on vehicles with dynamic cornering lights) Interior li...

Description and Operation Overview   Item Part Number Description 1 - HS CAN bus 2 - MS CAN bus 3 - Gateway (GEM) 4 - GEM. 5 - Front/rear window wiper motors 6 - Headlamp 7 - Fuel pump module (FPDM) 8 - Heated windscreen 9 - Heated rear window, heated exterior mirrors 10 - Window washer pump 11 - Headlamp washer pump 12 - Electric booster heater 13 - Instrument cluster 14 - Remote control/tire pressure monitoring receiver module (vehicles without keyless vehicle module only) 15 - Tire pressure monitoring antenna 16 - Yaw rate sensor 17 - Clutch travel sensor 18 - Ignition lock 19 - Stoplamp switch 20 - Fuel level sensor 21 - Accelerator pedal position (APP2) sensor 22 - Backup lamp switch 23 - Multifunction switch 24 - ...