2004 Peugeot 406 C check engine

02-02-2004
DRIVING YOUR 406 COUPE
128
THE HANDBRAKE
To apply When parking on a slope, turn the wheels towards the kerb and applythe handbrake.
To release Pull the handle and press the button to release the handbrake and movethe vehicle.
Disarming the ESP/ASR systems In certain exceptional conditions
(vehicle stuck in mud or snow, or onloose ground...), it could prove useful
to disarm the ASR and ESP systemsto make the wheels spin and regaingrip. 
Press the switch "ESP OFF", sit-
uated to the left of the steering wheel.
The switch lights up and the indicatorlights come on, accompanied by themessage '' ASR/ESP de-activated''
on the multi-function display: the
ESP and ASR systems no longer
affect the operation of the engine orthe brakes. They engage again: automatically when the ignition is
switched off,
 manually by pressing the switchagain. The ASR/ESP systemsoffer increased safety dur-ing normal driving, butshould not incite the driver
to take risks or to drive at highspeed. The operation of these systems is assured on condition that therecommendations of the manufac-turer regarding the wheels (tyresand wheel rims), the braking com-ponents, the electronic compo-nents and the assembly andrepair procedures within thePEUGEOT network are respected. After an accident or impact, have the system checked by a
PEUGEOT dealer.
Operating check When a system malfunctionoccurs, the switch lightflashes and the indicatorlight comes on.
Contact a PEUGEOT dealer tocheck the system.
TRACTION CONTROL (ASR)
AND DYNAMIC STABILITY
CONTROL (ESP) These systems are linked and com-
plement the ABS.
The ASR system optimises drive to prevent the wheels skidding, by act-ing on the brakes of the drive wheelsand on the engine. It also allows thedirectional stability of the vehicle tobe improved on acceleration. If there is a variation between the tra- jectory followed by the vehicle and
that required by the driver, the ESPsystem automatically acts on theengine and the brake of one or morewheels, in order to put the vehicleback on course.
Operation of the ASR and ESP systems
The warning light flashes if
the ASR or ESP is activated.

02-02-2004
CHECKING THE LEVELS Oil level Check the level regularly and top up between changes. Maximum con-sumption is 0.5 litres per 600 miles(1 000 km). The oil level should be checked with the vehicle level and the engine coldusing the oil gauge or the dipstick.Dipstick There are two marks on the dipstick: A=maximum
Never fill past this mark. B= minimum
To maintain the reliability of the engines and of theemission control sys-tems, the use of additivesin the engine oil is prohib-ited.
Oil change According to the information given in
"PEUGEOT SERVICING" .
Note: avoid any prolonged contact of
used oil with the skin.
Viscosity selection In all cases, the oil selected must meet the manufacturer's require-ments.
MAINTENANCE OF YOUR 406 COUPE
30
Brake and clutch fluid level:
- The level should always bebetween the DANGER and MAX
marks on the reservoir.
- If the level drops substantially, con- tact a PEUGEOT dealer immedi-
ately.
Fluid change:
- must be carried out according to the manufacturer's servicing schedule.
- use fluids recommended by the manufacturer, which fulfil DOT 4standards.
Note: the brake fluid is noxious and
very corrosive. Avoid any contactwith the skin. Coolant level Use the fluid recommended by the
manufacturer. When the engine is warm, the tem- perature of the coolant is controlledby the engine fan. Because this fan
can operate with the ignition off andbecause the cooling system is pres-surised, wait for at least one hourafter the engine has stopped beforecarrying out any work.
To avoid any risk of burns, slacken the cap to the first notch to releasethe pressure. When the pressure hasdropped, remove the cap and top upthe level. Used products Do not dispose of used oil, brake fluid or coolant down drains or on theground. Power steering fluid level Open the reservoir with the engine
cold at ambient temperature. Thelevel should always be above theMIN mark, close to the MAX mark.
Windscreen and headlamp* wash fluid level For best quality cleaning and for your
safety, we advise that you useproducts recommended by
PEUGEOT.
* According to destination.

02-02-2004
Only use products recom-
mended by PEUGEOT.
To ensure best perfor- mance from components
as important as the power steeringand the braking system, PEUGEOT selects and offers specific products.
To prevent damage to the electri- cal units, avoid washing theengine.
MAINTENANCE OF YOUR 406 COUPE 31
CHECKS Battery
At the start of winter, have your bat-
tery checked by a PEUGEOT dealer. Air filter Regular replacement of the filter ele- ment is essential. If you drive in
very dusty conditions, change ittwice as often. Brake pads Brake pad wear depends on the style of driving, in particular for vehi-cles that are used in town, for shortjourneys. It may be necessary to check the thickness of the pads even betweenservices. Handbrake Where the handbrake travel is too great or there is a reduction in theperformance of the system, thehandbrake should be adjusted, evenbetween services. Have the system checked by a
PEUGEOT dealer. Manual gearbox This does not require an oil change. Have the level checked in accor-dance with the manufacturer's ser-vicing schedule. Oil filterReplace the cartridge regularly in accordance with the servicing sched-ule.

02-02-2004
MAINTENANCE OF YOUR 406 COUPE
42
BATTERY
To charge the battery using a battery charger:
Ð Disconnect the battery,
Ð Follow the instructions for use given by the battery charger manufacturer,
Ð Reconnect starting with the negative (Ð) terminal,
Ð Check that the terminals and connectors are clean. If they are covered with sul-
phate (white or greenish deposit), disconnect them and clean them.
To start the vehicle from another battery:
Ð Connect the red cable to the positive (+) terminals of the two batteries,
Ð Connect one end of the green or black cable to the negative (Ð) terminal of the slave battery,
Ð Connect the other end of the green or black cable to an earth point on the bro- ken down vehicle, as far as possible from the battery,
Operate the starter, let the engine run.
Wait for the engine to return to idle, then disconnect the cables.
Ð Never disconnect a terminal when the engine is running.
Ð Never charge a battery without first disconnecting the terminals.
Ð Close the sunroof before disconnecting the battery. If it does not oper-
ate normally following re-connection of the battery, you must re-initialise it by turning the control to the maximum tilt position and pressing it for afew seconds.
Ð After every reconnection of the battery, switch on the ignition and wait
1 minute before starting to allow the electronic systems to be initialised. Ifslight difficulties are experienced after this, please contact a PEUGEOT
dealer.
It is advisable to disconnect the battery if the vehicle is not to be used
for a period of more than one month.
Economy mode
With the engine switched off and the ignition key in the "running" or"accessories" position for about half
an hour, certain electrical equipment(displays, instrument panel, warninglights, courtesy lights, electric win-
dows, wipers etc.) will switch offautomatically to avoid draining the
battery. Once the electrical equipment goes into economy mode, it is necessaryto start the engine to enable theequipment to work again.

02-02-2004
TOWING A TRAILER,
CARAVAN, BOAT etc.
Only use original PEUGEOT tow bars that have been tested andapproved from the design stage ofyour vehicle. The tow bar must be fitted by a
PEUGEOT dealer.
Your vehicle is primarily designed for transporting people and luggage but
it may also be used for towing a trailer. Driving with a trailer subjects the towing vehicle to more significantstress and its driver must be particu-larly careful. Air density decreases with altitude, thus reducing engine performance.
Above 1 000 metres, the maximum
towing load must be reduced by 10 %
and so on for every 1 000 metres ofaltitude.Driving advice Distribution of loads:
Distribute the
load in the trailer so that the heaviest items are as close as possible to theaxle and the nose weight approachesthe maximum permitted withoutexceeding it. Cooling: Towing a trailer on a slope
increases the temperature of the coolant. As the fan is electrically controlled, its cooling capacity is not dependenton the engine speed.
On the contrary, use a high gear to lower the engine speed and reduceyour speed. The maximum towing load on a long slope depends on the gradient andthe outside temperature. In all cases, pay attention to the coolant temperature. If the warning light comes on, stop
the vehicle and switch off the engineas soon as possible. Tyres:
Check the tyre pressures of
the towing vehicle and of the trailer,observing the recommended pres-sures. Braking: Towing increases the brak-
ing distance.Lights: Check the electrical signalling
on the trailer.Side wind: Take into acount the
increased sensitivity to side wind.
MAINTENANCE OF YOUR 406 COUPE 45

02-02-2004
THE IDENTIFICATION FEATURES OF YOUR 406 COUPE
A. Manufacturer's plate.
B. Model serial number on the bodywork.
C. Serial number on the fascia.
D. Tyre pressure label and paint colour reference.
Tyres The tyre pressure label Don the
edge of the driver's door, gives:
Ð the wheel and tyre sizes,
Ð the brands of tyres approved by the manufacturer,
Ð the tyre pressures
Ð the paint colour reference.The tyre pressure must be checked when cold, at least oncea month.
Tyre sizes fitted as standard:
Ð 215/55 R 16 V for vehicles fitted with the 2.2 litre 16V and 3 litre 24V V6 petrol engines and the2.2 litre 16V HDI turbo dieselengine.
Ð 205/55 R 16 for vehicles fitted with the 2 litre 16V petrol engine.
Ð winter tyres for all engines: Michelin Pilot Alpin 205/55 R 16.
TECHNICAL DATA 137