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BMW 330i/330xi/330Ci 2001-2006 Workshop Repair & Service Manual




US Dollar: $29.99

Complete digital official shop manual contains service, maintenance, and troubleshooting information for the 2001-2006 BMW 330i, 330xi, 330Ci. Diagnostic and repair procedures are covered in great detail to repair, maintain, rebuild, refurbish or restore your vehicle like a professional mechanic in local service/repair workshop. This cost-effective quality manual is 100% complete and intact as should be without any missing pages. It is the same factory shop manual used by dealers that guaranteed to be fully functional to save your precious time.

This manual for 2001-2006 BMW 330i, 330xi, 330Ci is divided into different sections. Each section covers a specific component or system and, in addition to the standard service procedures, includes disassembling, inspecting, and assembling instructions. A table of contents is placed at the beginning of each section. Pages are easily found by category, and each page is expandable for great detail. It is in the cross-platform PDF document format so that it works like a charm on all kinds of devices. You do not need to be skilled with a computer to use the manual.

330i: 2001-2006
330xi: 2001-2006
330Ci: 2001-2006

2005-08 ENGINE Engine - SI Techniques - N52 6-Cylinder
Engine - SI Techniques - N52 6-Cylinder
N52 ENGINE, VALVETRONIC: E60, E61, E63, E64, E65, E66, E87, E90, E91
The Valvetronic consists of fully variable control of the valve lift combined with the variable camshaft control
unit (VANOS).
As of the N52 engine, the 6-cylinder petrol engine is equipped with Valvetronic. The advantages this technology are:
Enhancement of engine dynamics
Improvement in the emission values
Fig. 1: Identifying Variable Camshaft Control Unit Components
The fully variable valve timing
Fig. 2: Identifying Setting For Minimum And Maximum Valve Lift
The fully variable valve lift timing is implemented with the following components:
Electric servomotor
Eccentric shaft
Intermediate lever
Return spring
Roller cam follower
The actuator motor is fitted above the camshafts in the cylinder head. The actuator motor adjusts the eccentric shaft. The worm shaft of the electric motor engages in the work gear attached to the eccentric shaft. After adjustment, the eccentric shaft does not have to be locked in any special way, as the worm gear has an adequate self-regulation system. The eccentric shaft adjusts the valve lift on the inlet side. The intermediate lever changes the transmission coefficient between the camshaft and roller cam follower. In the full load position, the valve lift and opening duration are at the maximum. In the idle position, the valve lift and opening duration are at the minimum. The roller cam followers and associated intermediate levers are split into 4 groups. To this end, an ID code is stamped in the components. Each pair always has the same class. The assignment of the roller cam followers and intermediate levers ensures that the cylinders are evenly filled, even with minimum lift.
In the lower range of motion of the valves, the possibility for harmonization by means of so-called advance is supported.
The inlet valves of a cylinder are opened synchronously up to a lift of 0.2 mm. As of this lift, valve 1 begins to advance. Valve 2 opens with a slight delay a little later. Valve 2 catches up with valve 1 with a stroke of approx. 6 mm. From then on, they open synchronously. These response characteristics favor the gas mixture flowing into the cylinders. The cross section of the inlet valve openings has been kept small to achieve a significantly higher flow rate with the intake volume remaining the same. This flow rate is used for better mixing of the
intake mixture.
E66, E87, E90, E91
The DME control unit MSV70 has 2 connections.
Fig. 3: Identifying DME Control Unit MSV70 Connections
The digital engine electronics MSV70 regulate the following functions:
Ignition control unit
Control of the injection system
Control of the Valvetronic
Control of the engine temperature

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