International Trainer Conference Q076463: Welcome to the International Trainer Conference July 2001 Gernot Nehmeyer VS-12

The New 8-Cylinder 3,6 and 4,4 l N62-Engine Q076463: The New 8-Cylinder 3,6 and 4,4 l N62-Engine

Introduction N62-Engine Engine Part 1 - Intake-/Exhaust-System Morning / Block 1 Afternoon / Block 2 TA 1 Training opening - Introduction/Warm up TA 5 Engine Part 3 - Engine Block - Cooling System/Oil System - Engine Assembly TA 2 Introduction N62-Engine TA 3 Engine Part 1 - Intake-/Exhaust-System - Ancillary components and belt drive TA 6 Engine Management ME 9.2 - ME 9.2-Control Unit - Valvetronic-Control Unit TA 4 Engine Part 2 - Cylinder Head and Valve System Valvetronic (VANOS/Valve lift adjustment) TA 7 Training end - Conclusion of Seminar - Seminar Feedback

Advantage of the Valvetronic + ++ o - +(+) + ++ o - +(+) Q076463: Advantage of the Valvetronic VANOS Engine VALVETRONIC Petrol-DI (direct Injection) + ++ Charge cycle o Emission characteristic - Full load +(+) VANOS Engine VALVETRONIC Otto-DI (direkt Injektion) Efficency + ++ Charge cycle o Emission characteristic - Full load +(+)

Loss Rate of a conventionel Carnot Perfect Engine Real Engine Wheel > 10% Throttling loss 100 % Energie Input 22 % Available Energie Loss Rate of a conventionel Petrol Engine

Q076463: Charge Cycle Diagram Gain Loss

Comparision Standard Engine - VALVETRONIC Vacum occur in the Intake System Direct Load control by the Valve Comparision Standard Engine - VALVETRONIC

Output [kW] Torque [Nm] Engine speed [rpm]

Output [kW] Torque [Nm] Engine speed [rpm]

ME 9.2 + VALVETRONIC control unit Technical Data Engine: N62B36 N62B44 Displacement (in ccm): 3600 4398 Output (kW / rpm): 200 / 6000 245 / 6000 Torque (Nm / rpm): 360 / 3300 450 / 3100 Intake valve lift (mm): 0,3 – 9,85 Engine Management (DME): ME 9.2 + VALVETRONIC control unit Emission regulations: EU3/EU4/LEV V max (km/h) electronically limited: 250 Reduction in fuel consumption compared to previous model: 13 % 14 %

Q076463: short intake pipe long intake pipe adjustment

rigid intake pipe 2 step variable length intake pipe Torque [Nm] Engine speed [rpm]

2 step variable length intake pipe Torque [Nm] Engine speed [rpm]

3 step variable length intake pipe continuously variable length intake pipe Torque [Nm] Engine speed [rpm]

continuously variable length intake pipe continuously variable length intake pipe with additional volume Torque [Nm] Engine speed [rpm]

(without additional volume)

Disassembling intake system Practice: Disassembling intake system

Alternator Index Explanation G1 Alternator S1 Ignition switch DME Engine control unit B1 Battery L1 Battery charge indicator lamp BSD Bit-serial data interface

Special features belt drive Disassembling cylinder head cover Practice: Special features belt drive Disassembling cylinder head cover

adjustment VANOS

resetting VANOS

Timing diagram Normal position Intake VANOS Exhaust VANOS Maximum adjustment Exhaust VANOS

Retard setting intake VANOS, max. valve lift Advance setting intake VANOS, max. valve lift Intake VANOS adjusted variably valve lift adjusted variably

Mixture at the valve gap Cause: Effect: Very high input speed at a marginal valve gap Very good homogen mixture

Mixture at the valve gap VALVETRONIC Standard Engine Fuel mist large fuel drops

... Additional principle advantage Valvetronic ... Additional principle advantage spontaneous / agility robust performance smooth running excellent cold start performance

Cylinder head, cylinder bank 1-4

Function of the torsion spring

Disassembling Valvetronic and Cylinder head Practice: Disassembling Valvetronic and Cylinder head

Practice: Removal oil pan

Öl pressure regulation

Filling capacity with oil filter 8 l Filling capacity between MIN/MAX mark on dipstick 1,5 l Minimum oil pressure at 20 °C 1,5 – 2,0 bar Maximum oil pressure at 20 °C 4,0 – 6,0 bar Oil delivery capacity at maximum engine speed (6500 rpm) and 150 °C 60 – 65 l/min

Injection system / Fuel tank ventilation system Practice: Injection system / Fuel tank ventilation system

Block Diagram ME 9.2

Sensor element Oxygen Sensor

Block Diagram Valvetronic

Function of the Eccentric Shaft Sensor

Practice: Diagnosis N62-Engine