User Manual

Chapter 1

BOSCH HDI EDC 15C2 INJECTION SYSTEM AND PARTICLE FILTER

GENERAL DETAILS:

HDI DIRECT INJECTION SYSTEM

Note: Some items mentioned in this document are common to the brochure: "HDI

injection system" (doc 1.6.159). Reference should be made to this document

where necessary.

Note: All values specified in this document are given as guidelines only. Refer to the

documentation corresponding to the vehicle.

I - FOREWORD

The HDI system fitted to the new DW12 TED4 engine is based on the system fitted to

the DW10 engine and includes the following additional features:

• cylinder head with 16 valves (4 valves/cylinder),

• double complex shape air inlet ducts in the cylinder head (variable swirl),

• variable geometry turbocharger

The HDI system is used to fulfil the requirements of the current standards regarding

the following:

• depollution,

• driving pleasure,

• fuel saving,

• mechanical reliability.

In addition to these features, a powerful pollutant particle filtration system has been

developed.

cardiagn.com