BMW F97 Technical Training Manual Download Page 46

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F97/F98�Complete�Vehicle

5.�Chassis�and�Suspension

5.1.�Front�axle

The�front�suspension�is�based�on�the�twin-arm�spring-strut�front�suspension�used�on�the�G01/G02.

The�following�components�and�mounts�are�new�M-specific�or�adapted�versions:

•

Front�axle�support

•

Steering

•

Wishbone

•

Trailing�link�with�hydro�mount

•

Ball�joint�(F25)

•

Swivel�bearing

•

Wheel�hub

•

Spring�strut

•

Support�bearing

•

Anti-roll�bar

Summary of Contents for F97

Page 1: ...Technical training Product information BMW Service F97 F98 Complete Vehicle...

Page 2: ...echnical Training Centers or BMW Group Contract Training Facilities This training manual or any attached publication is not intended to be a complete and all inclusive source for repair and maintenanc...

Page 3: ...ermal protection 15 3 3 Interior 16 3 3 1 Driving area and steering wheel 16 3 3 2 Seats 18 3 3 3 Doors and strips 19 4 Powertrain 20 4 1 Engine S58B30T0 20 4 2 Transmission 20 4 2 1 M automatic trans...

Page 4: ...4 Driving dynamics systems 55 5 4 1 Vertical Dynamics Management 55 5 4 2 M Dynamic Stability Control M DSC 61 5 4 3 Integrated actuation longitudinal transverse dynamics 65 5 4 4 M dynamic mode and M...

Page 5: ...tronic The new BMW X3 M and BMW X4 M will be launched onto the market in the second quarter of 2019 1 1 M history In 1972 the then BMW Motorsport started out with the legendary M1 For over 45 years to...

Page 6: ...nd rear or between rear and front wheels Electronically regulated M rear axle differential lock Engine sound Distinctively sports character in the lower and upper rev and power bands a more emotive st...

Page 7: ...rino leather and illuminated M logo in the head restraint Ergonomics interior equipment M instrument cluster M Drive menu optional M head up display with M theme on start up M seat M specific decorati...

Page 8: ...ncluding M shift paddles and two steering wheel mounted driver configurable M mode buttons Chassis and suspension driving dynamics setup Adaptive M suspension selectable handling dynamics programs ran...

Page 9: ...h Engine sound M Sport exhaust system with even more sports style sound both in the lower and upper rev and power bands more emotive starting sound and an active sound design system The engine sound c...

Page 10: ...ne speed kW hp rpm 265 355 5500 6500 353 473 6250 375 503 6250 265 355 5500 6500 353 473 6250 375 503 6250 Torque at speed Nm lb ft rpm 500 369 1550 4500 600 442 rpm 2600 5600 2600 5950 500 369 1550 4...

Page 11: ...l up to date figures were available at time of editorial deadline 2 1 1 BMW EfficientDynamics measures TwinPower Turbo technology Petrol direct fuel injection with Valvetronic Volume flow controlled o...

Page 12: ...a of vehicle The following measures were implemented in the front area of the vehicle for the connection of the chassis and suspension components and to increase the vehicle rigidity Front end brace S...

Page 13: ...Rear area of the vehicle The following measures for attaching the chassis and suspension components and increasing the vehicle rigidity have implemented in the rear end of the vehicle Compression str...

Page 14: ...istance system are integrated in the front sides of the vehicle as on the G01 G02 standard production models The ornamental grills at the bottom are black An optional radar sensor for the driver assis...

Page 15: ...s and the X3 M X4 M model inscriptions on the front left and right side panels In addition the air breathers in the left and right side panels are used as design features integrated in the typical M g...

Page 16: ...the G01 G02 side sill with M Sport package Trim strips All the trim strips with the exception of the roof trim strips come in BMW Individual high gloss Shadow Line Roof trim strips The roof trim strip...

Page 17: ...nted in body color and has also been carried over from the G01 M Sport package The lower diffuser has been adapted to suit the four M specific tailpipes and is painted in body color The ornamental gri...

Page 18: ...Sport package The lower diffuser has been adapted to suit the four M specific tailpipes and is painted in body color The ornamental grill in the center of the bumper panel has a black grained finish F...

Page 19: ...ift on the F97 F98 M specific air guides in front of the front wheels that differ geometrically from the G01 G02 have been developed in a wind tunnel The center underbody trim panel has been adapted s...

Page 20: ...the left upshift on the right The steering wheel has an external diameter of 380 mm The steering wheel rim is reinforced and ergonomically optimized from a round to an oval cross section improving the...

Page 21: ...s mounted on top of the multifunction pad because the multifunction button clusters for the driver assistance systems remain on the steering wheel as on the G01 G02 For more details please see the cha...

Page 22: ...t width adjustment Impressed M logo in the backrest upper section Lumbar support Fully electric M sports seat The fully electric sports seats are available as optional equipment SA 712 on the X3 M and...

Page 23: ...A 4HA 3 3 3 Doors and strips M decorative strips The following trims are offered in the F97 F98 Aluminum carbon effect interior trim finishers with pearl effect chrome accentuation trim Fineline cove...

Page 24: ...parate Product Information ST1926 S58 Engine F97 F98 S58B30T0 engine 4 2 Transmission 4 2 1 M automatic transmission As already used on the F85 F86 and F90 the F97 F98 features an M automatic transmis...

Page 25: ...en adapted to the S58B30T0 engine In the F97 F98 the Idle coasting function known from the BMW AG vehicles is not implemented However the M8HP76 supports as known from the BMW AG vehicles the Connecte...

Page 26: ...greater oil flow rate translating into more efficient cooling of the M automatic transmission The thermostat of the transmission oil cooler starts opening at 76 C 169 F and is fully open at 96 C 205...

Page 27: ...each engine start driving program 1 is active in Drive mode In automated mode all forward gears are shifted automatically Kickdown is triggered by depressing the accelerator pedal beyond the pressure...

Page 28: ...i e 3 does not require the M DSC to be deactivated 4 2 4 Launch Control During the first 5000 km 3100 miles run in distance the Launch Control must not be used The Launch Control is released at the f...

Page 29: ...mperature e g repeat Launch Control or race like start activation is blocked up until an acceptable temperature threshold is reached The start flag goes out with every deactivation and the automatic f...

Page 30: ...ion including during work interruptions e g by means of an adequate clean and lint free cover Lifetime oil filling At present as is the case with the F85 F86 and F90 with automatic transmission a tran...

Page 31: ...3 Front output shafts right 4 Body Domain Controller BDC 5 Advanced Crash Safety Module ACSM 6 Prop shaft 7 M rear axle differential lock 8 Rear output shafts right 9 Control unit regulated M rear axl...

Page 32: ...n has the task of varying the torque distribution between the front and rear wheels across the full range from 0 100 to 100 0 as demanded by the driving situation Since a rigid connection of the rear...

Page 33: ...ling the transfer box oil it is necessary to move the oil partition to the open position using the BMW ISTA diagnosis system Various test plans are available in the BMW diagnosis system ISTA for Servi...

Page 34: ...fically for the F10 M5 and is also used on the F06 F12 F13 M6 F80 F82 F83 F87 F90 and now on the new F97 F98 The active M differential has been reworked for the F97 F98 which specifically involved ada...

Page 35: ...overrun mode Traction handling and driving stability are optimized by adjusting a defined differential speed or differential torque at the rear axle The regulated M rear axle differential lock works w...

Page 36: ...98 Complete Vehicle 4 Powertrain 32 F97 F98 sectional view of rear differential System components Wiring harness Regulated differential lock control unit M GHAS Electric motor and transmission gearing...

Page 37: ...differential lock Exploded diagram Index Explanation 1 Electric motor 2 Transfer box 3 Ball ramp consisting of geared mobile adjusting disc and first half of ball ramp 4 Balls Spherical washer 5 Stati...

Page 38: ...ring 11 Disc spring 12 Differential lid connected to differential housing cannot rotate 13 Pressure plate 14 Disc set 15 Counter pressure plate F97 F98 sectional view of parking lock differential Ind...

Page 39: ...e index 6 to 18 belong to the differential and rotate proportional to the rear axle gear speeds The lock is effected between the right output 16 and the differential housing 18 and counteracts a diffe...

Page 40: ...F97 F98 Complete Vehicle 4 Powertrain 36 System wiring diagram F97 F98 M GHAS system wiring diagram...

Page 41: ...t axial torque distribution Stabilization status Brake value Tolerance adjustment of wheel adjustment of different wheel circumferences Driving speed ACSM FlexRay Lateral acceleration Yaw rate Road lo...

Page 42: ...e oil temperature sensor is replaced erasing the fault memory is all that is required The rear differential fluid is currently replaced at 2000 km 1200 mile running in check and every 3rd engine oil c...

Page 43: ...eshaft The front propeller shaft has been carried over from the G01 G02 4 5 2 Rear driveshaft This is a steel prop shaft carried over from the F90 and adapted to the F97 F98 The dimensioning and stren...

Page 44: ...over from the G01 G02 with the VAG170AL 4 5 4 Rear output shafts The rear output shafts have been carried over from the F90 and adapted to the F97 F98 The dimensioning and strength of the shaft and t...

Page 45: ...the G01 G02 though once again with many new M specific or adapted components Designation Unit F97 F98 Wheelbase Turning circle mm 2864 Front track width mm 1623 Rear track width mm 1602 Front axle Twi...

Page 46: ...ed on the twin arm spring strut front suspension used on the G01 G02 The following components and mounts are new M specific or adapted versions Front axle support Steering Wishbone Trailing link with...

Page 47: ...le 5 Chassis and Suspension 43 F97 F98 twin arm spring strut front suspension Index Explanation 1 M spring strut with support bearing 2 Front axle support 3 Anti roll bar link 4 M wheel hub 5 M swivel...

Page 48: ...1 1 Steering Within the framework of the EfficientDynamics measures for the F97 F98 the steering used is a rack and pinion steering with electrical steering wheel support M Servotronic based on an EPS...

Page 49: ...5 M Servotronic M EPS 6 Track rod right The M Servotronic M EPS is has been developed independently for the F97 F98 All components of the M Servotronic M EPS have been developed specifically for the...

Page 50: ...02 constant gear geometry 2 Rack variable sport steering F97 F98 variable gear geometry A More indirect steering gear ratio variable sport steering B More direct steering gear ratio variable sport ste...

Page 51: ...angle in the F97 F98 is not recorded by the Electronic Power Steering EPS and not via a separate sensor on the steering wheel and instead is computed based on the motor position angle of the EPS motor...

Page 52: ...F97 F98 Complete Vehicle 5 Chassis and Suspension 48 5 1 4 System wiring diagram M Servotronic F97 F98 M Servotronic M EPS system wiring diagram...

Page 53: ...Instrument cluster KOMBI 9 M Dynamic Stability Control M DSC 5 2 Rear axle The rear suspension is based on the HA5 rear suspension from the G01 G02 Many components and mounts are new or adapted versi...

Page 54: ...support 2 Attachment point for rear axle final drive 3 M spring strut with M support bearing 4 Anti roll bar link 5 Camber link 6 M wheel hub 7 M wheel carrier 8 Wishbone 9 Camber control arm 10 Contr...

Page 55: ...ystem Index Explanation 1 M Dynamic Stability Control M DSC 2 Brake fluid expansion tank 3 Brake servo left hand drive vehicle 4 Front M compound brake disc 5 Brake pedal 6 Rear single piston floating...

Page 56: ...esponse characteristics in the wet Usage of intelligent lightweight construction Technology transfer from M sport Unique authentic M design Designation Unit G01 G02 M40i F97 F98 Front brake 4 piston f...

Page 57: ...it is important to dry the brakes out by braking braking a few times from 50 km h 31 mph to 0 is sufficient Or that the brakes can have a tendency to squeak if they go through long periods when they...

Page 58: ...F97 F98 F97 F98 Competition LM EH2 wheel rim standard wheel at front cast 8J x 20 Styling 787M 9 J x 20 Styling 764M 9 5J x 21 Styling 765M LM EH2 wheel rim standard wheel at rear cast 9 5J x 20 Styli...

Page 59: ...5 4 1 Vertical Dynamics Management The EDC function integrated in the M vertical dynamic platform M VDP controls the adjustable dampers The drivability can be shifted toward the individual driving dy...

Page 60: ...PS angle change rate ACSM and damper piston speed In addition the ride height between the wheel suspension and body is used as a control reference and load variable and is read off of the ride height...

Page 61: ...adjustable damper front 2 Steering column switch cluster SZL 3 Body Domain Controller BDC 4 EDC button 5 M vertical dynamic platform M VDP 6 Electronic adjustable damper rear 7 Rear left vertical acc...

Page 62: ...F97 F98 Complete Vehicle 5 Chassis and Suspension 58 System wiring diagram F97 F98 EDC system wiring diagram...

Page 63: ...ng column switch cluster SZL System function The Electronic Damper Control EDC is a variable electronically controlled shock absorber adjustment system that controls the vertical dynamics The front ax...

Page 64: ...nimizing wheel load fluctuations and reducing the stopping distance Adaptive suspension EDC button options The EDC button is connected with the Body Domain Controller BDC via the LIN bus The Body Doma...

Page 65: ...on country roads or bumpy racetracks such as the N rburgring Nordschleife Sport on the F97 F98 now also means that M dynamic control comes into effect with the basic shock absorber stiffness being fur...

Page 66: ...front right 10 Central Information Display CID 11 Head Unit HU M specific 12 Body Domain Controller BDC 13 M gear selector switch M GWS 14 Controller CON 15 Advanced Crash Safety Module ACSM 16 Prop s...

Page 67: ...F97 F98 Complete Vehicle 5 Chassis and Suspension 63 System wiring diagram F97 F98 longitudinal dynamics system wiring diagram...

Page 68: ...Domain Controller BDC 11 Power distribution box front 12 Power distribution box rear 13 Wheel speed sensor rear right 14 Regulated M rear axle differential lock M GHAS 15 K CAN4 terminating resistor...

Page 69: ...llowing benefits when driving the F97 F98 Excellent traction especially on low coefficients of friction M specific agility and playfully intuitive control of the vehicle Superiority in every day use V...

Page 70: ...d actuation system overview Index Explanation 1 M Dynamic Stability Control M DSC 2 Digital Motor Electronics DME 3 Front axle differential 4 M Servotronic M EPS 5 Head Up Display HUD M specific 6 Ins...

Page 71: ...Electrical connection EDC valve rear 17 Vertical acceleration sensor rear 18 Ride height sensor rear 19 M vertical dynamic platform M VDP 20 Regulated M rear axle differential lock M GHAS 21 Output sh...

Page 72: ...F97 F98 Complete Vehicle 5 Chassis and Suspension 68 System wiring diagram F97 F98 integrated actuation system wiring diagram simplified...

Page 73: ...ght 15 Fuse 30B power distribution box front 16 Body Domain Controller BDC 17 Fuse 30F power distribution box front 18 Fuse 30B power distribution box front 19 M Vertical Dynamic Platform M VDP 20 Whe...

Page 74: ...e MDM the control threshold of the brake interventions is expanded raised and the engine power reduction by ASC is applied significantly later This enables driver oriented dynamic and sporty driveabil...

Page 75: ...F97 F98 Complete Vehicle 6 General Vehicle Electronics 71 6 1 Bus overview F97 F98 bus overview...

Page 76: ...High beam assistant FLER Frontal Light Electronics Right FLEL Frontal Light Electronics Left FlexRay Fast preset and fault tolerant bus system for use in the automotive sector 10 MBit s FZD Roof func...

Page 77: ...warning 2 TCB Telematic Communication Box TRSVC Top Rear Side View Camera Surround View WCA Wireless charging tray ZGM Central Gateway Module The following deviations exist in comparison with the stan...

Page 78: ...le the driver can adapt the vehicle to his or her individual needs F97 F98 M drive dynamics switch Index Explanation 1 M DSC OFF 2 Engine dynamics control 3 Electronic Damper Control 4 M Servotronic 5...

Page 79: ...two individually adjustable configurations Setup M1 and Setup M2 F97 F98 M configuration menu HU Index Explanation 1 Configure M1 2 Configure M2 3 M xDrive 4 Head Up Display M view The following sett...

Page 80: ...pension 5 Steering The following settings can also be made Transmission shift program with Drivelogic Head Up Display F97 F98 M1 Configuration Index Explanation 6 Transmission 7 Head Up Display 8 Rese...

Page 81: ...guration is set by default in the factory for the M1 button and a sporty configuration for the M2 button This setting can be adapted in the M configuration menu to the customer s needs and also reset...

Page 82: ...configurable M1 M2 setup Engine dynamics control including Active Sound Design ASD and exhaust flaps Sport Precise and direct responsiveness with maximum dynamic response Sport Dynamic sports style r...

Page 83: ...M configuration menu If the driver is not aware that holding down an M button overwrites the current configuration setting this may lead to an unjustified customer complaint Live adjustment During the...

Page 84: ...d drive In the instrument cluster the current configuration of the engine dynamics damper control and Servotronic systems is shown in the upper area between the speed indicator and the engine speed di...

Page 85: ...ystem If the shiftlight function is activated in the HUD it is automatically deactivated in the instrument cluster F97 F98 head up display with Shiftlight function The M specific display for correspon...

Page 86: ...ront seat backrests M leather steering wheel with 2 M buttons M side gills M driver s footrest BMW X3 M and BMW X4 M aerodynamics package Front and rear bumpers front side panels with gills exterior m...

Page 87: ...al BMW Assist call BMW Teleservices ConnectedDrive services Advanced Real Time Traffic Information Remote Services Apple CarPlay compatibility Enhanced USB and Bluetooth plus Smartphone integration 7...

Page 88: ...lack Sapphire metallic SA A90 Dark Grey metallic SA C1M Phytonic Blue metallic SA C1N Sunstone metallic SA C28 Donington Grey metallic SA C3G Toronto Red metallic 7 2 2 Merino leather with additional...

Page 89: ...M bi color Orbit grey with different tires front and rear SA 1Y5 21 V spoke model 765M bi color Jet black with different tires front and rear only in conjunction with Competition package SA 7MA SA 1RF...

Page 90: ......

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