CITROËN
TECHNICAL
TRAINING
PRESENTATION OF THE AL4
AUTOMATIC TRANSMISSION
_________________
CITROËN UK LTD
221 BATH ROAD
SLOUGH SL1 4BA
DEALER PERSONNEL
DEVELOPMENT AND
TRAINING
_________________
© CITROËN UK LTD. Reproduction whether partial or in full without
written permission from Citroën UK Ltd is forbidden
PDF created with pdfFactory trial version www.pdffactory.com
PDF created with pdfFactory trial version www.pdffactory.com
A
DOCUMENT SUMMARY
PRESENTATION OF THE
AL4 AUTOMATIC TRANSMISSION
The aim of this document is to give a brief description of the design and operation
of the electronically managed AL4 automatic transmission which offers precise,
adaptive control as well as excellent gear changing quality.
The following subjects are dealt with in this document:
- Presentation of the transmission and various pieces of information,
- The selector control,
- Lubrication,
- The converter,
- The mechanism,
- The ECU,
- Auto-diagnostics,
- The electrical circuit,
- Unit maintenance.
AL4 AUTOMATIC TRANSMISSION
© AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon
PDF created with pdfFactory trial version www.pdffactory.com
B
CONTENTS
CHAPTER 1 : PRESENTATION - GENERAL............................. PAGE 1
I - INTRODUCTION.............................................................................. PAGE 1
II - PRESENTATION ............................................................................. PAGE 2
III - DESCRIPTION OF THE AL4 AUTOMATIC TRANSMISSION .......... PAGE 3
IV - IDENTIFYING THE COMPONENTS OF THE AUTOMATIC
TRANSMISSION.............................................................................. PAGE 5
V - SPECIFICATIONS - SERVICING..................................................... PAGE 7
VI - LAYOUT OF THE AL4 AUTOMATIC TRANSMISSION .................... PAGE 8
VII - MISCELLANEOUS ADVICE............................................................. PAGE 9
AL4 AUTOMATIC TRANSMISSION
© AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon
PDF created with pdfFactory trial version www.pdffactory.com
1
PRESENTATION - GENERAL
I - INTRODUCTION
AL4001D
∙ Electronically operated transverse automatic transmission.
∙ Four forward gears and one reverse gear.
∙ "Fuzzy logic" auto-adaptive ECU which controls the converter, gear changes
and specific programs.
∙ The maximum torque capacity is 210 mN.
∙ Sealed transmission with reduced maintenance.
∙ Transmission oil cooled by heat exchanger.
∙ Current application: CITROËN XANTIA PHASE II vehicles with XU Petrol and
Diesel engines.
Get The File | Download here | PDF Manual
