Table of Contents X5 Face Lift Subject Page X5 Updates.3 Lights.4 Front Headlights.4 Bi-Xenon.4 Taillights.4 LCM IV.5 Check Control Messages .5 PDC.5 GM3RD.5 Load Deactivation .5 Softclose Actuator (SCA).7 System Components .7 SCA Assembly.7 Pushbutton Switches .7 Relay SCA Open .8 Relay SCA Close .8 SCA Functions .8 Instrument Cluster.10 MFL .10 Communication Systems.11 Telephone System .11 Initial Print Date: 10/03 Revision Date: X5 Face Lift Model: E53 Production: Start of Production MY 2004 After completion of this module you will be able to: • Recognize the external changes to the X5 • Understand operation of the X-Drive • Explain mechanical and electrical changes to the X5 2 X5 FL X5 Updates TheX5 Face Lift includes both seen and unseen changes. A partial list of theX5 updates is as follows: • N62 Engine available • New Engine wiring harness • New Driveshaft • Updated emissions for the M54 • 150 Amp generator for the M54 • New wheel designs • DXC • New wheel speed sensors • X Drive transfer case • RPA • New Steering Wheel • New Transmissions • Bi-Xenon Lights • Redesigned Tail Lights • New LCM • Revised PDC • New AC compressor • New Telephone prep • Redesigned Front End • Panoramic Sunroof (after 04/04) • New Colors • New Interior Trim 3 X5 FL Lights New lighting features for the X5 FL include the following: • Revised Front Headlights • Redesigned Taillights Front Headlights The front headlights are all new. Both the High and Low beams are now free-form reflectors and no longer use glass lenses. The turn signal now has a clear lens housing, and the parking light uses the optical wave guide technology. Clear rings surround the High and Low beam reflectors. Out put voltage for the light source module comes from the parking lamp final stage of the LCM IV. Bi-Xenon Bi-Xenon lights are optional in the X5 3.01 and standard in the 4.41 Operation is the same as E46. Taillights The revised taillights include brake lights, running lights, rear fog lights, reverse and turn signal lights. Similar to the headlights, the lenses have been replaced with a clear lens. Taillight dimensions remain unchanged. Tail light up to October 2003 4 X5 FL Tail light X5 FL LCM IV Due to improvements in the LCM, the same LCM unit (IV) may be used for both the halo¬ gen and bi-xenon lights. Check Control Messages A modified CC message, Check Gas Cap, replaces the old Check Filler Cap. PDC Placement of the sensors has changed due to revisions of the front bumpers. GM3RD The GM3RD has been Redesigned to accommodate new functions in theX5 FL. While some pin assignments have changed, operation and diagnostics remain the same. New features of the GM3RD include: • Revised software and hardware • Adaptation of HW for Interior Lighting (IB) changes • Additional Load Deactivation (VA2) to support peripheral control units • Integration of Soft Close Actuator (SCA) The primary reason for the redesign of the GM3 was to integrate a new microprocessor. Additionally, other hardware changes were also implemented requiring a new printed cir¬ cuit board. • Semiconductor control of lock activations (not relay) • Integrated Optical Entry Assist (OEH) • SCA • Elimination of heat sink • Pulse width modulated (PWM) signal for the interior lighting (IB), and reading lights supply line (VA) Load Deactivation Load Deactivation remains the same. There are now two VA outputs from the GM3RD. VA1 is a PWM signal and VA2 is not PWM. 5 X5 FL Interior Lighting Schematic Glove compartment Term. 30 contact ighting x ITT > | | ■ <8> Front interior lighting Reading Interior Reading lame lighting lamp / DJ "Interior lighting on" from central locking remote control Term. 58 from the LM Footwell light driver's door SIB P-Bus Y Terrn. 30 F55P IB OEH SIB V K-Bus Term. <•30 7A4J [] 20 30eI Ip-Bus A IJIm rjlA25 rjlcio KBUS Crash sensor Term. R°- KL-R Ft CS B13 Rear door, driver's side Door contact TKFH T Entry lamp IB Term. 30 i > 30Af] 30BT ^ Front passenger's door VA (PWM) Footwell light front passenger's door C17 - used for OEFI (puddle light - starting with 10/03) Cl 9 - VA1 with PWM (pin was used as VA without PWM until 10/03) C3 - VA2 switched ^ To other VA switched Footwell light driver's side, rear Rear interior lighting Reading lamp Interior Reading lighting lamp l GPL EE-21 Meiendres 28.11.97 24.07.02 Lear Deuschinger Upper tail gate till PU 10/03 Luggage compartment lights 1 Liftgate contact ■> X -G S§T M Was connected to VA, (unregulated till PU 10/02) (without PWM) C20 -IB C16 - GPL > electronic modules e.g. seat memory, EHC, etc. Rear door, passenger's side VA (PWM) Footwell light, front passenger's side, rear XT TKBH Do Entry lamp m x Upper tail gate after PU 10/02 6 X5 FL Softclose Actuator (SCA) The softclose actuator system for the rear upper hatch is new for the E53 Facelift pack¬ age. The purpose of the SCA system is to automatically pull the upper lift-gate fully closed once the customer lowers the hatch, and to automatically release the hatch once the opening process is initiated. The controlling function for the SCA is integrated into the GM3. System Components • SCA Assembly Locking Pawls Mechanical Components (Gears, springs, etc.) Load Protection Device Motor Hall Sensor system • Pushbutton Switches • Relay SCA Open • Relay SCA Close SCA Assembly Prior to this change, a micro-switch located in the upper lift-gate was used to provide the status of the lift-gate to the GM3 body electronics control module. For the 10/03 facelift, the micro-switch has been replaced with Hall Sensors for greater reliability. The hall sen¬ sors report the status of the lift-gate to the GM3. The GM3 responds to the status sig¬ nals and provides the outputs to the relays that control the SCA motor. The GM3 also uses these input signals to control the upper hatch luggage compartment lights and to trigger the DWA anti-theft alarm. Pushbutton Switches The upper and lower lift-gates can be opened electrically in the same manner as before by using the respective switches in the upper and lower lift-gate. Additionally, the upper lift-gate can be opened using the center console switch, or the remote key. The pushbutton switches for the upper lift-gate must be pressed for at least 200 ms in order for an electrical opening of the upper hatch to be initiated. The SCA motor is not activated if the battery voltage is lower than 9 volts. In a crash situ¬ ation (crash telegram generated), the lift-gate opening function is blocked for 10 seconds for additional safety. 7 X5 FL Relay SCA Open The GM3 controls the SCA Open relay K112 by applying a ground signal to the relay coil, which switches KL30 voltage to the motor. Relay SCA Close The GM3 controls the SCA Close relay K70 by applying a ground signal to the relay coil,which switches KL30 voltage to the motor pulling the liftgate closed. SCA Functions • Disabling of liftgate operation while vehicle is moving • Disabling of liftgate for 10s following a crash • Opening of the upper liftgate from the outside/inside electrically via a pushbutton (minimum actuation duration 200 ms) and remote control. • Opening the lower liftgate via pushbutton on the lower liftgate. • Dimmed activation and deactivation of the interior lighting and luggage compart¬ ment lighting via the body electronics control module. • The Pawl Sensor is an anti-theft alarm system trigger. • Activation of the SCA motor in order to automatically close the SCA latch into the primary position after engagement in the secondary position by means of the “pull- closed” function. • Activation of the SCA motor must occur in order to open the SCA latch when the vehicle is at a standstill. • Activation of the SCA motor via two relays, activation of the lower liftgate motor and the luggage compartment light directly via the GM3RD 8 X5 FL SCA Schematic KL30 KL30 0 0 7A Open upper litigate by central lock or unlock / Obere Heckklappe durch Zentralverrie- gelung dffnen Oder schliessen from wa vet rap / voiri Sperrkreis 30E 30A 30L1 LEAR Corporation SCA Verschaltung V3.4, 25.07.2002, File: SCA_LHE53_3.vsd, J. Deuschinger Lower tailgate / Untere Heck- t T ;i_30 I 9 X5 FL Instrument Cluster Soft ware and hardware have been updated. The “Check Gas Cap” CC message and the DCX icon have been added. MFL X5 FL Communication Systems The Navigation System, Business Radio and DSP Amplifier all have revised software and hardware. While the changes internally may be dramatic, there will no apparent change to the customer. Telephone System The X5 FL now include a TCU as standard equipment. Operation of the system is the same as E65/E60 equipped with the Everest Platform. Installation of the eject box, cell phone antenna and compensator will be performed at the dealership. MFL Main Harness X400 Audio/Navigation Harness Mayday Switch Microphone Telephone Harness Antenna Lead Eject Box Board Monitor Spoiler Antenna TCU US (Everest) Compensator < Bumper Antenna (Tel.-Ant. 2) 11 X5 FL Power, GND, TEL On Fuse and Relay Carrier Layout Fuse No. 72 73 74 75 7G 77 73 79 SO SI 32 S3 34 35 S3 S7 Amperes 30 7,5 1 0 5 - 30 20 7,5 20 20 30 20 7,5 30 5 30 Equ i pmerit Fuse Equ i pmerit Fuse Air suspension 79, 87 On-board monitor 7, 73,75 Additional socket in Rad i a 7, 72,73 L u q g aq @ ca mp artment S3 R ea r seat b a ok adjustmen t 77 CD Changer 75 Rear seat he atin q 80 C ent r aL Locking system r e an Lid 84 Rear washer 81 Centra L Loc k i ng sys tern Rea r was h e r p u m 81 remote eontroL 86 5o ft o La se C r ea r L i d> 82 Heated rear window 85 T e L©phone 7, 73,74 Navigation system 73, 75 T ra i L er 5 o c k e t 78 LD O- ■fl" LD m m ■q - r> ID b- m CD LD Relay Schematic E Box X 61 High pressure headlight cleaning X66 KL.50 XI242 wiper module X6304 secondary air pump Driving direction . X13561 6915727 ST re X61 6915727 r 1 X6304 1742690 XI242 8384505 TF -TW t: TT — T7- r ^ si— ih: 12 X5 FL Control Module and Relay Carrier GM III # 6935890-01 HW 2.5 SW 3.1 RDC # 6759023-01 HW 2 SW10 Cl 1 DI 2 BI 8 2-axle air suspension # 6758452-01 HW 20 SW 30 DWA tilt alarm sensor # 6923209-0 HW 04 SW16 Sleep current relay # 8365960-01 ALC Part of the 04 2004 package ALC XI0513 RESERVE TILT /LA.RM SENSOR HE IGUNGSGEBER XI222 RESERVE DWS RDC XI8034 RES. BODY ELECTRONICS CONTROL MODULE GRUNDMODUL HIGH X332 X253 X254 83G5960 REL. XI 3001 AIR SUSPENSION 2-AXLE LUFTFEDERUNG 2-ACH5 XI0279 RES. Power Distribution and Relay Carrier R1 Relay Horn # 8373700 R 2 Reserve R3 Relay K1.15 # 8373700 R 4 Relay fuel Pump # 8373700 = = - # = h £ 5 - S r" ? 3 5 ? S I s h\i IJj , '-T ■I £ „ £ " ■ rp m — k i i=i N Jills S' i: I : ‘ s t t-' I it s 13 X5 FL Power Distribution in Relay Box F 200 > F 207 > F 206 > F 205 > VGSG (Transfer case control) unit F 204 > relay 2-axle air susp F 203 > > F 202 > > F 201 > trailer module 14 X5 FL Components for US Telephone Spoiler Antenna OddimentsTray TCU Emergency Call Button Voice Recognition Jumper 15 X5 FL