DescriptionOn request, the car may be fitted with dipped beam headlamps with xenon bulbs.The lighting provided by this type of bulb is considerably greater than from conventional bulbs, in terms of both quality of light and size of illuminated area.The strong brightness produced by this type of headlamp requires the use of an automatic system to maintain a constant headlamp alignment and avoid dazzling oncoming vehicles.The headlamp adjustment device comprises:front alignment sensor mounted on front left suspensionrear alignment sensor mounted on rear left suspensioncontrol unittwo actuators mounted on the front lights clustersspecific wiring for connecting the various components.The xenon lamp control system is supplied when the side lights are on, and is protected by a fuse in the junction unit.
Functional description The xenon lamp adjustment system receives its supply, only with the side lights on, at pin 16 of control unit M87 and at pin 1 of the actuators N30 and N31 from the external lights switch H6 , which in turn receives its ignition-dependent supply (INT/A) at pin 10 through fuse F5 of the junction unit B1 . The control unit M87 is connected to earth C30 via pin 1 while actuators N30 and N31 both have pin 4 connected to earths C10 and C13 respectively. The control unit M87 , via pins 14 (positive) and 9 (earth), supplies both adjustment sensors K28 and K29 at pints 3 (positive) and 1 (earth). The sensors K28 and K29 in turn supply, as an output from pin 2, the alignment signal which reaches the control unit M87 at pins 13 (front alignment) and 12 (rear alignment) respectively. The actuators N30 and N31 (stepper motors) are controlled by two specific signals: a direction signal (up or down), sent from pin 17 of the control unit M87 to pins 3 of the actuators, and a pulse signal (travel), sent from pin 18 of the control unit M87 to pins 2 of the actuators. The control unit M87 is also connected by pin 11 to the system diagnostic socket R10 , and by pin 15 to the instrument panel for switching on the fault warning light if a malfunction of the system is detected.
0Removing201Refitting213314824-5505A18multi-function controlunit - r r . 1. Undo the bolt (1a) and push back the junction unit as far asnecessary to disconnect the electrical connections (1b).767For precise identification ofthe electrical connections, see Wiring Diagrams Section.2. Remove the junction unit.2010592
0Removing201Refitting21 Make sure that the ignitionis off (STOP position), then disconnect the negative battery terminal(refer to op. 33148615530B10battery - r+r ). 1. Unscrew bolt (1a) and open fuse access cover (1b).2. Undo the bolt (2a) and remove the integrated multiservices unit(2b) after having disconnected the electrical connections (2c),(2d), (2e), (2f) and (2g).2010595
5505A29
0Removing201Refitting21Open the bonnet lid.1. Release the retainers (1a) and remove the cover (1b) for theadditional junction unit.2071293
0Removing201Refitting213314864-5530B54battery cover - r+r . Make sure that the ignition key is in theOFF position.1. Disconnect the battery negative and positive terminals.2. Undo the bolt (2a) fixing the battery retaining bracket (2b).3. Remove the battery.2010647
5530B40
0Removing201Refitting213314864-5530B54battery cover - r+r1. Press and release the retainers (1a), then remove the cover (1b)for the supply box on the battery. 2071303
0Removing201Refitting21 Make sure that the ignitionis off (STOP position), then disconnect the negative battery terminal(refer to op. 33148615530B10battery - r+r ). 1. Release the retaining spring (1a) and remove the protective cover(1b).2. Disconnect the electrical connection from the lamp.3. Release the retaining spring (3a) and remove the lamp (3b) fromthe light cluster.767If the lamp is working properly,avoid touching the bulb with your hands. If this does happen, cleanthe bulb with alcohol.2010662
5540B26
0Removing201Refitting21 Make sure that the ignitionis off (STOP position), then disconnect the negative battery terminal(refer to op. 33148615530B10battery - r+r ). 1. Rotate the bulb holder (1a) in an anti-clockwise direction untilit is released from the light cluster (1b).2. Disconnect the electrical connection (2a) and extract the bulbholder.3. Separate the lamp from the bulb holder (press fit).767If the lamp is working properly,avoid touching the bulb with your hands. If this does happen, cleanthe bulb with alcohol.2010663
5540B38
Prepare the vehiclecomplete with spare wheel, tools, fluids, fuel reserve.Check that the tyre inflation pressureis correct.Place the headlamp alignment switch inposition '0'.Position the vehicle on a flat surface,perpendicular to a screen with an opaque surface, 10 metres away, whichcontains the following lines.1. V - V: vertical corresponding to the trace of the vehicle symmetryplane.2. C - C: traces of the vertical planes passing through the referencecentres of the light clusters.3. HC - HC: horizontal corresponding to the height from the groundof the reference centres for the light clusters.4. AC - AC: horizontal 11 cm below the HC - HC line.5. Lines inclined at 15° as illustrated in the diagram.2010664
5540B40
0Removing201Refitting21Position the vehicle on theramp. Make sure that the ignition is OFF (STOPposition), then disconnect the negative battery terminal (referto op. 33148615530B10battery - r+r ). 3315196-7040D12engine front side cover (one) lh or rh - r r . 1. Disconnect the electrical connection from the exhaust gas headlampcontrol unit.2. Disconnect the electrical connection from the headlamp alignmentmotor.2010666
0Removing201Refitting21Ensure that the ignition keyis in stop position, then disconnect the battery negative terminal1. Undo the bolt (1b) and open the fuse access cover (1b).2. Remove the complete exterior light switch (2a) from its housingusing the tool (2b).767Exert pressure inside the exteriorlights switch to facilitate its removal.3. Disconnect the electrical connections (3a), (3b) and (3c) andremove the exterior lights switch (3d).2010651
5540A56
0Removing201Refitting21 Make sure that the ignitionis off (STOP position), then disconnect the negative battery terminal(refer to op. 33148615530B10battery - r+r ). 1. Undo the knob (1b) and open the protective cover (1a).2010652
0Removing201Refitting21 Make sure that the ignitionis off (STOP position), then disconnect the negative battery terminal(refer to op. 33148615530B10battery - r+r ). 1. Undo the fixing knob (1b) and open the access cover (1a) .2. Disconnect the electrical connection from the inner rear lightcluster.3. Undo the nuts (3a) and remove the inner rear light cluster (3b).2010654
5540A74
0Removing201Refitting21 Make sure that the ignitionis off (STOP position), then disconnect the negative battery terminal(refer to op. 33148615530B10battery - r+r ). 1. Open the access cover after having undone the fixing knob.2. Release the retaining tabs (2a) and extract the bulb holder (2b)from its housing.3. Replace the rear fog lamps bulb (3a) or the reversing lightsbulb (3b) or the side lights bulb (3c).2010655
5540A80
0Removing201Refitting21 Make sure that the ignitionis off (STOP position), then disconnect the negative battery terminal(refer to op. 33148615530B10battery - r+r ). 1. Undo the knob (1b) and open the protective cover (1a).2010656
5540A94
0Removing201Refitting21 Make sure that the ignitionis off (STOP position), then disconnect the negative battery terminal(refer to op. 33148615530B10battery - r+r ). 1. Using the tool (1a), remove the complete number plate light (1b).2. Disconnect the electrical connection and remove the number platelight.2010658
0Removing201Refitting21 Make sure that the ignitionis off (STOP position), then disconnect the negative battery terminal(refer to op. 33148615530B10battery - r+r ). Open the fuse carrier compartment flap.1. Using the tool (1a) and pushing the fuse carrier compartment,remove the surround (1b) complete with switches.2. Disconnect the elelectrical connections (2a), (2b) and (2c) andremove the surround complete with switches.2010681
5540C24
0Removing201Refitting21 Make sure that the ignitionis off (STOP position), then disconnect the negative battery terminal(refer to op. 33148615530B10battery - r+r ). 1. Disconnect the electrical connection from the headlamp alignmentadjustment motor.2. For the left light cluster alignment motor only, open the spring(2a) and remove the main beam headlamp bulb protective cover (2b).3. Rotate the light cluster alignment motor in a clockwise directionand remove it.2010683
0Removing201Refitting21Position the vehicle on theramp. Make sure that the ignition is off (STOPposition), then disconnect the negative battery terminal (referto op. 33148615530B10battery - r+r ). 1. Disconnect the electrical connection from the light cluster alignmentfront sensor.2. Undo the nut (2a) and disconnect the connecting rod (2b) fromthe light cluster alignment front sensor.3. Undo the nuts (3a) and remove the light cluster alignment frontsensor (3b).4. Undo the bolts (4a) and remove the light cluster alignment frontsensor mounting bracket (4b).2010686
5540C44
0Removing201Refitting21Position the vehicle on theramp1. Undo the nuts (1a) and remove the connecting rod for the exhaustgas light cluster alignment front sensor (1b).2. Undo the nut (2a) and remove the mounting bracket (2b) for theexhaust gas light cluster alignment front sensor connecting rod.2010687
5540C46
0Removing201Refitting21Position the vehicle on theramp. Make sure that the ignition is off (STOPposition), then disconnect the negative battery terminal (referto op. 33148615530B10battery - r+r ). 1. Disconnect the electrical connection from the light cluster alignmentrear sensor.2. Undo the nut (2a) and disconnect the connecting rod (2b) fromthe light cluster alignment rear sensor.3. Undo the bolts (3a) and remove the mounting bracket (3b) completewith light cluster alignment rear sensor (3c).At the bench, undo the nuts and separatethe light cluster alignment rear sensor from the bracket.2010688
5540C48
0Removing201Refitting21Position the vehicle on theramp1. Undo the nuts (1a) and remove the exhaust gas light cluster alignmentrear sensor connecting rod (1b).2. Undo the bolt (2a) and remove the exhaust gas light cluster alignmentrear sensor connecting rod mounting bracket (2b).2010689
5540C50
0Removing201Refitting21 Make sure that the ignitionis OFF (STOP position), then disconnect the negative battery terminal(refer to op. 33148615530B10battery - r+r ). Move the front driver's seat forwards.Cut the floor covering along the area marked.1. Extract the control unit for the exhaust gas light cluster alignmentsystem from the support guide.2. Disconnect the electrical connection from the exhaust gas headlampalignment system control unit, then remove it.2010690
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