Get CLUTCH-GEARBOX-DRIVESHAFTS -> Recommendations and precautions (AL4 and 4 HP 20) Guide for Citroen Xantia 4 Door Second Generation (1993-2002)

RECOMMENDATIONS - PRECAUTIONS : AL 4 and 4 HP 20 AUTOMATIC GEARBOXES

Engines : LFY - RFV - RFN - XFZ - DHX

XANTIA - XM - SYNERGIE

PRECAUTIONS TO BE TAKEN

Towing

REMOVING - REFITTING. (Automatic gearbox).

The front of the vehicle must be raised in order to be towed.

If the front of the vehicle cannot be raised :

WARNING : Never place the gearbox on its lower casing

(risk of deforming the tray and damaging the hydraulic valve block).

Never use the connections as handles for raising, turning, holding or

pushing the gearbox.

IMPERATIVE : - Put gear lever in position «N»..

- Do not add any oil.

- Do not exceed 50 kph over a distance of 50 km.

Driving

ESSENTIAL :

- Fit the converter retaining peg while the gearbox is removed.

- Fit the centring peg to locate the gearbox on the engine:

(remove the converter retaining peg just before locating)

- Never drive with the ignition switched off.

- Never push the vehicle to try to start it;

(impossible with an automatic gearbox).

Lubrication

WARNING :With the safety programme selected, a snatching can be

felt when changing from ‘‘P’’ ꢀ ‘‘R’’ or ‘‘N’’ ꢀ ‘‘R’’.

The automatic gearbox is only lubricated when the engine is running.

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XANTIA - XM - SYNERGIE

RECOMMENDATIONS - PRECAUTIONS : AL 4 AUTOMATIC GEARBOX

Engines : LFY - RFV - RFN - DHX

PROCEDURE BEFORE REPAIRS

AL 4 gearbox

Oil Quality

If the gearbox has suffered a serious fault resulting in a malfunction or the destruction of a clutch, the oil will overheat and become contaminated with

impurities :

the oil is said to be «burnt».

This is characterised by a black colour and the presence of an unpleasant smell.

ESSENTIAL : The gearbox must be replaced.

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XANTIA - XM - SYNERGIE

RECOMMENDATIONS - PRECAUTIONS : AL 4 AUTOMATIC GEARBOX

Engines : LFY - RFV - RFN - DHX

PROCEDURE BEFORE REPAIRS

Oil level AL 4 (prior conditions).

- Vehicle in horizontal position.

- Check gearbox is not in back-up mode.

- Remove the oil filler plug (2).

- Add 0.5 litres extra oil into the gearbox.

- Foot on the brake, change through all the gears.

- Selection lever in position "P".

- Engine running, at idle.

- Oil temperature : 60°C (+8°C; -2°C), measured with the aid of a diagnostic tool.

- Remove the oil level plug (3).

- Thread of oil then "drip-drip" : refit plug (3).Tighten 2.4 m.daN.

- "Drip-drip" or nothing : refit the plug (3).

- Stop the engine.

- Add 0.5 litres extra oil into the gearbox.

- Repeat the oil level procedure.

NOTE : The level is correct at the moment the thread of oil becomes drip-drip.

- Refit the oil filler plug (3). Tighten to 2.4 m.daN.

- Initialise the oil usage counter (open the diagnostic tool procedure).

B2CP31FD

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XANTIA - XM

RECOMMENDATIONS - PRECAUTIONS : 4 HP 20 AUTOMATIC GEARBOX

Engine : XFZ

Tools

[1] Hose clamp pliers

[2] Filling cylinder

[3] Specific end-piece

: 4517-T

: (-).0341.

: (-).0341.B.

Tool kit 4507-T

Checking the oil level.

Preliminary conditions

- Vehicle in horizontal position, handbrake released.

- Engine idling, without using power (headlamps, heated rear screen etc.).

- Check absence of gearbox back-up mode; using a diagnostic tool.

- Apply the brake, change through all the gears.

- Gear selection lever at position P.

- The check is to be carried out when the oil has reached a temperature of 55°C ± 1°C; using a diagnostic tool.

- Remove the oil filler plug (3).

B1BP202C

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XANTIA- XM

RECOMMENDATIONS - PRECAUTIONS : 4 HP 20 AUTOMATIC GEARBOX

Engine : XFZ

Checking the oil level (continued)

Flowing of oil from the oil filler aperture.

- As soon as the oil temperature reaches 60°C ± 1°C, refit the oil filler plug (*).

Note : The oil level is correct.

No flowing of oil from the oil filler aperture.

- Refit the oil filler plug (3).

- Stop the engine.

- Remove the air vent assembly (1) and (2) from the gearbox; using tool [1].

- Add 0.5 litre of additional oil into the gearbox; using tool [2].

- Repeat the procedure of topping up the oil.

- Remove the tools [2] and [3].

- Refit the metallic part (1) of the air vent assembly, using a Ø 18 mm drift and a mallet.

- Clip on the plastic part (2) of the air vent assembly.

- Refit the air filter housing.

(*) Note : The method of topping up gearbox oil with an oil gauge remains unchanged.

B2CP3ACD B2CP3ABC

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XANTIA - XM

RECOMMENDATIONS - PRECAUTIONS : AL 4 and 4 HP 20 AUTOMATIC GEARBOXES

Engines : LFY - RFV - RFN - XFZ - DHX

PROCEDURE BEFORE REPAIRS (continued)

When the ECU detects an erroneous or non-existent value

on input or output :

Reading the fault codes.

- Read the fault codes.

- It writes the fault in memory.

- For each associated context, it writes the context of the oldest fault

in memory.

No fault codes present :

Carry out a measure of parameters.

- It initiates a back-up mode strategy.

Anomalies present :

YES : Carry out the necessary repairs.

NO : Read the fault codes – engine ECU

There are two types of back-up modes :

•

- The ECU makes replacement values available (relating to comfort,

gear selection quality, loss of functions).

- Carry out a road test.

Following an initialisation of the ECU, for a certain period of time

there may be an inconsistent gear selection quality (while ECU

parameters are adapted to the gearbox).

- Access to emergency programme (only 3rd ratio and reverse are

available).

To achieve a consistent standard, it will be necessary to carry out a

road test taking in frequent gear changes (auto-adaptive laws).

Note : 4 HP 20 : A snatching may be felt when changing :

P/R - N/R - N/D.

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RECOMMENDATIONS - PRECAUTIONS : 4 HP 20 AUTOMATIC GEARBOX

Engine : XFZ

XANTIA- XM

ECU : Downloading, Configuration, Initialisation (Pedal).

Downloading (4 HP 20)

Updating the gearbox ECU by downloading :

- Follow the procedure using the diagnostic equipment

The operation of downloading is used to update the automatic gearbox ECU or to adapt it to the engine ECU.

After downloading, carry out the following :

Following the diagnostic tool procedure.

- A reinitialisation of the auto adaptor (4 HP 20).

- A road test (4 HP 20).

IMPERATIVE : Every update of the automatic gearbox ECU

must be accompanied by an update of the engine ECU.

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XANTIA - XM - SYNERGIE

RECOMMENDATIONS - PRECAUTIONS : AL 4 AUTOMATIC GEARBOX

Engines : LFY-RFV-DHX-RFN

ECU : Downloading

Updating the gearbox ECU by downloading :

- SFollow the procedure using the diagnostic tool.

The downloading operation enables the automatic gearbox to be updated, or adapted to an evolution of the engine ECU.

Before commencing the downloading, take the value of the oil usage counter present in the automatic gearbox ECU.

After the downloading operation, carry out the following:

A clearing of faults.

A pedal initialisation.

An initialisation of the auto-adaptives.

A recording of the value of the oil usage counter previously read.

A road test.

ESSENTIAL : Every update of the automatic gearbox ECU should be accompanied by an update of the engine ECU.

Updating the value of the oil usage counter.

Using LEXIA or ELIT.

Access to reading and recording of the oil counter is via the menu :

«Oil counter».

Adjustment of the oil counter value is done by entering directly the

5 figures of the oil counter.

Using PROXIA

Access to reading and recording of the oil counter is via the menu :

«Configuration (integrated circuit button) / Oil counter».

Adjustment of the oil counter value is done in incremental steps of

2750 units.

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XANTIA - XM - SYNERGIE

RECOMMENDATIONS - PRECAUTIONS : AL 4 AUTOMATIC GEARBOX

Engines : LFY-RFV-DHX-RFN

ECU : Downloading, Configuration, Initialisation (pedal) (continued)

Downloading

Pedal initialisation

ECU downloading procedure :

- Follow the diagnostic tooling procedure.

A pedal initialisation must be carried out in the following cases :

- Replacement of the automatic gearbox ECU.

- Replacement of the automatic gearbox.

A new ECU or downloaded update is always configured

with the following options :

- SHIFT LOCK gear selection lever position.

- OBD outlet (emission standard L4).

- Downloading of the ECU configuration.

If the ECU is to be fitted to a vehicle without one or both

of these options:

- Carry out a configuration which inhibits the diagnosis of the

option(s) concerned.

- Adjustment or replacement of the accelerator cable.

- Replacement of the throttle potentiometer.

IMPERATIVE : For a certain period of time, while the ECU parameters are adapted to the gearbox, there may be an inconsistent

gear selection quality. To achieve a consistent standard, it will be necessary to carry out a road test taking in frequent gear changes

(auto-adaptive laws).

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SYNERGIE

RECOMMENDATIONS - PRECAUTIONS : AL4 AUTOMATIC GEARBOX

Engine : RFN

Gear control is by a cable linked to the selection lever located on the

dashboard.

The gear selection control has 5 positions :

«P» Park (immobilisation of the vehicle, whatever the slope).

«R» Reverse gear.

«N» Neutral.

«D» Drive (autoadaptative mode, eco-law).

«M» Manual mode (M+, M-).

The vehicle can only be started when the selection lever is in position «P»

or «N».

Shift-Lock

The «shift-lock» is a system which locks the gear selection lever in

position «P».

To unlock the gear selection lever from position «P», switch on the

ignition and press the brake pedal.

During a repair, the shift-lock can be unlocked by pressing the locking

finger «a» (see corresponding operation).

B2CP3CFD

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RECOMMENDATIONS - PRECAUTIONS : 4 HP 20 AUTOMATIC GEARBOX

Engine : XFZ

XANTIA- XM

SHIFT LOCK

- The shift lock is a system which locks the selection lever in the park position «P».

Unlocking the SHIFT LOCK (in normal operation)

- Switch on the ignition.

- Press and hold down the brake pedal.

- Using the selection lever, disengage from position «P».

NOTE : It is IMPERATIVE to disengage the gear selection lever from position "P" the minute

you start applying the brake pedal. Otherwise, release pressure on the brake pedal and then

try again.

Unlocking the SHIFT LOCK (In the event of a malfunction)

- Remove the cover (1).

- Unlock the shift lock (2) using a screwdriver.

- Using the selection lever, disengage from position «P».

B2CP268C B2CP269C

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XANTIA - XM - SYNERGIE

AL 4 AUTOMATIC GEARBOX

Engine : LFY - RFV - RFN - DHX

WARNING : CITROEN special semi-synthetic oil cannot be mixed with other oils.

The gearbox is lubricated for life.

(a) Component reference.

B2CP30ZD

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XANTIA- XM

4 HP 20 AUTOMATIC GEARBOX

Engine : XFZ

(1) Oil/water exchanger.

(2) Selection lever position switch.

(3) Torque converter.

(4) Differential.

(5) Secondary shaft.

(6) Clutch.

(7) Brake.

B2CP34VP

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CLUTCH-GEARBOX-DRIVESHAFTS -> Recommendations and precautions (AL4 and 4 HP 20) for Your Citroen Xantia 4 Door Second Generation (1993-2002)

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