Table of Contents E85 Life Cycle Impulse (LCI) Subject Page Introduction .3 Technical Data .4 Body .6 Drivetrain.9 Engine M anagement.9 Chassis .10 Electrical System .11 Bus Systems .11 Passive Safety System.11 Information & Communication Systems.11 Initial Print Date: 03/06 Revision Date: E85 Life Cycle Impulse Model: Z4 Production: from March 2006 After completion of this module you will be able to: • Understand the changes made to the E85 starting March production 2 E85 Life Cycle Impulse Introduction The E85 LCI (Life Cycle Impulse) represents a redesigned E85 (Z4).This vehicle will be introduced to the market in M arch 2006. 2 model variants will be available: • Z4 3.0i with the N52B30 UL engine, 215 bhp • Z4 3.0si with the N52B30 OL engine, 255 bhp 0 n the outside, the redesigning measures are noticeable by the modified front and rear as well as the new light assemblies. 0 n the inside, new upholstery colors (M ontego blue, black and saddle brown) as well as the higher-grade decorative trim (brushed aluminium, aluminium cirrus and dark poplar grain) keep in line with the new design. A higher-grade interiorfinish such as the rollbar and air conditioning controls are also new. 3 E85 Life Cycle Impulse Technical Data 1 General Z4 Roadster 3.0i Z4 Roadster 3.0si | Curb weight, lb.: Manual transmission 3020 3086 Automatic transmission 3086 3131 Weight distribution, front/rear %: Manual transmission 49.9/50.1 49.9/50.1 Automatic transmission 50.6/49.4 50.6/49.4 Wheelbase, in 98.2 1 Track, front/rear, in. 58.0/60.0 1 Length, in. 161.1 Width, in. 70.1 1 Height, in. (with softtop up) 501 Body Z4 Roadster 3.0i Z4 Roadster 3.0si 1 Type 2-seat Roadster 1 Aerodynamic drag coe dent 0.36 1 (with softtop up) EPA size classification 2-S eater 1 Accommodations Z4 Roadster 3.0i Z4 Roadster 3.0si | Seating capacity, persons 2 1 S houlder room, in. 52.5 1 Head room, in. 37.3 (with softtop raised) Leg room, in. 42.0 1 EPA interior volume, cu ft. 47.6 1 (with softtop raised) EPA cargo volume, cu ft. 8.5/9.2 12 E ngine & electrical Z4 Roadster 3.0i Z4 Roadster 3.0si 1 Engine type DOHC inline 24-valve 6-cylinder magnesium/aluminum composite construction, Valvetronic variable intake-valve lift & Double VANOS 3 steplessly variable intake-& exhaust-valve timing 1 Bore x stroke, mm/in. 85.0 x 88.0/3.35 x 3.46 i Displacement, cc/cu in. 2996/183 1 Compression ratio 10.7:1 Power @ rpm, hp 215 @ 6250 255 @ 6600 Torque @>rpm, Ib-ft. 185 @ 2750 220 @ 2750 Engine-management system MSV70 with knock control (2 sensors): Valvetronic , variable valve timing, electronic throttle system, engine cooling Sotherfunctions included in control strategy 1 Induction system S ingle-stage 3-stage Fuel requirement Premium unleaded 1 Fuel capacity, U.S. gal. 14.5 1 Battery capacity, amp-hr. 55 1 Alternator output, amp./W 120/1680 1 Drivetrain Z4 Roadster 3.0i Z4 Roadster 3.0si 1 Drive system Front engine/rear drive 1 Manual transmission Getrag 1,6-speed Getrag H, 6-speed Ratios: 1st 4.32:1 4.35:1 2nd 2.46:1 2.50:1 3rd 1.66:1 1.66:1 4th 123:1 124:1 5 th 1.00:1 1.00:1 6th 0.85:1 0.85:1 Reverse 3.94:1 3.93:1 4 E85 Life Cycle Impulse 1 Drivetrain (cont.) Z4 Roadster 3.0 i Z4 Roadster 3.0si 1 Final drive ratio 3.38:1 3.23:1 Automatic transmission ZF 6 HP 19,6-speed Ratios: 1st 417:1 1 2nd 2.34:1 3rd 152:1 1 4th 114:1 5th 0.87:1 6th 0.69:1 Reverse 3.40:1 Final drive ratio 3.73:1 3.64:1 1 C hassis Z4 Roadster 3.0 i Z4 Roadster 3.0si 1 Body/frame construction Unitized steel structure with aluminum hood 1 Front suspension Struts, arc-shaped forged-aluminum lower arms with hydraulic cushions, coil springs, twin-tube gas-pressure shock absorbers, anti-roll bar; aluminum thrust plate & strut-dome braces Rear suspension M ulti-link system with Central Links, upper & lower lateral links (upper link of cast aluminum), coil springs, twin-tube gas-pressure shock absorbers, anti-roll, steel thrust plate & V-brace 1 Steering type Rack & pinion, vehicle-speed-sensitive electric power assist 1 Overall ratio 14.2:1 1 Turns, lock-to-lock 3.0 1 Turning circle, ft 32.2 4-wheel disc brakes, vacuum-assisted: Diameter front, mm/in. 300/118 (ventilated) 325/12.8 (ventilated) Diameter rear mm/in. 294/116 (ventilated) 294/116 (ventilated) Wheels (standard) Cast alloy 1 : 17 x 8.0 17 x 8.0 Wheels (optional) Cast alloy 1 : 17 X 8.0 front/17 X 8.5 rear (ZSP) 18 x 8.0 front/18 x 8.5 rear (ZSP) Run-f at tires (standard) 225/45R-17 W-rated 225/45R-17 W-rated 4 Run-f at tires (optional) 225/45R-17 front/ 245/40R-17 rear W-rated (ZSP) 225/40R-18 front/ 255/35R-18 rear 4 W-rated (ZSP) Stability-enhancement system Dynamic Stability Control (DSC), including all-speed traction control, Dynamic Traction Control, electronic brake proportioning, antilock braking (ABS), cornering/braking stability enhancement, Dynamic Brake Control, Brake Fade Compensation, Brake Standby, Brake Drying & Start-up Assistant 1 Performance data 1 Acceleration, 0-60 mph, sec. 5 : Manual transmission 6.2 5.6 Automatic transmission 6.6 5.7 Top speed, mph 6 Manual transmission 149 155 Automatic transmission 149 155 Fuel economy, ERA est, M PG, city/highway: M anual transmission 20/30 20/30 Automatic transmission 21/29 21/29 1 - Specif cation applies to both models. 2 - Softtop lowered/raised. 3-VANOS= VAriable NOckenwellen Steuemng = variable camshaft control, or variable valve timing. 4 - Due to low-prof le tires, please note: Wheels, tires and suspension parts are more susceptible to road hazard and consequential damages. Z4 models are not equipped with a spare tire and wheel. Performance tires are not recommended for driving in snow and ice conditions. 5 - BM W AG test results. Actual acceler¬ ation results may vary depending on specif cation of vehicle; road and environmental conditions; testing procedures and driving style. These results should be used for comparison only, and verif cation should not be attempted on public roads BMW urges you to obey all posted speed limits and to please wear your safety belt at all times. 6 - Electronically limited. ZSP - Sport Package 5 E85 Life Cycle Impulse Body The outer skin panel components of the body have been redesigned. As a result, the vehicle features a new front apron with black moulding and more accentuated edges. The mounting arrangement of the front bumper cover, however, remains the same. Likewise, the kidney grills have also been modified but with the same mounting arrange¬ ment. Close-up of Front The horizontally integrated fog lights are a new development for the LCI. The front headlights are completely new and integrate corona rings and white direction indicator lamps. Geometrically, the halogen headlight remains unchanged. However, on the inner of the front direction indicator lamps is dimmed as the marker light in the same way as the outer direction indicator lamp was previously used. The xenon headlamp has been modified.The halogen high beam light has been elimi¬ nated. The flash to pass feature as well as high beam illumination is the responsibility of the bi-xenon lamp/shutter. 6 E85 Life Cycle Impulse The headlight features a corona ring. There is a blue filter between the light source and the corona ring. This filter only allows blue light to pass through, thus giving the corona ring a similar colorto the bi-xenon headlight. Index Explanation 1 Light Source for Corona Ring 2 Reflector 3 Headlight Housing 4 Light Filter for Corona RingfBlue Tint) 5 Cover 6 Lens 7 E85 Life Cycle Impulse The rear bumper cover now has a second integrated lip (design). The tail light cluster has been modified and features a new design. There is only one rear fog light. The complete tail light cluster must be removed in orderto replace a defective bulb in the rear fog light. The area illuminated by the brake lights increases as the braking force increases (brake force display). Index Explanation 1 Rearfog light/brake force display 2 Reversing light 3 Reflector 4 Brake force display/tail light LED 5 Brake light 6 Direction indicator light The modifications in this area are further enhanced by additional features such as larger diameter exhaust tail pipes (chrome-plated on the Z4 3.0si)and new rim design. 8 E85 Life Cycle Impulse Drivetrain The E85 LCI will be available with the two new generation six cylinder engines already in production and use on our vehicles. The two vehicle variants are known as: • Z4 3.0i 215 bhp (N52B30 UL)) • Z4 3.Osi 255 bhp (N52B30 OL) With the noticeable power boost provided by all 6-cylinder engines, the performance val¬ ues of the E85 LCI are distinctly above those of the competition while fuel consumption figures remain lower. All E85 LCI are equipped with a 6-speed gearbox.The 3.0si and the 2.5si are optionally available with an automatic gearbox and gearshift paddles on the steering wheel. Engine Management The N52 engine features the familiar engine management MSV70.The N46 engine is equipped with the engine management M E9. N52 Engine 9 E85 Life Cycle Impulse Chassis As its predecessor, the E85 LCI has a sporty tuned chassis.The standard run-flat tires have been specially developed forthe sports characteristics of the vehicle. They are now a little more comfortable without changing the vehicle's agility. Otherwise, the well-proven chassis of the Z4 has been retained. This lightweight chassis with single-joint spring strut front axle and central link rear axle with aluminium control arms still ensures safe and reliable handling as well as high cornering speeds. DSC and DTC as well as the 50:50 axle weight distribution are further characteristic fea¬ tures ofthe E85 LCI chassis. 10 E85 Life Cycle Impulse Electrical System Bus Systems New or updated control units in the bus system include: • ACSM (Advanced crash and safety management) • M FL (M ultifunction steering wheel) • SES (Voice recognition system) • DSP-Carver =Top-HiFi • ULF (Universal charging and hands-free facility) • Controlled fuel pump (only in connection with N52 engine) Passive Safety System The E85 LCI is equipped with the advanced crash and safety management system (ACSM).The ACSM system is fully described in the training material ST403 Passive Safety Systems course. Information & Communication Systems The cable between the CD changer and amplifier has been eliminated if the option for E85 Bus overview as from 01/2006 11 E85 Life Cycle Impulse