Lancia THESIS CONNECT Owner's Handbook Manual - 330

330

SPARK PLUGS

The cleanness and soundness of the

spark plugs are very important for

keeping the engine efficient and pol-

luting emissions down.

The appearance of the spark plug,

if examined by expert eyes, is a good

way of pinpointing a problem even if

it has nothing to do with the ignition

system. Therefore, if the engine has

problems, it is important to have the

spark plugs checked at a Lancia

Dealership.

The spark plugs must be

changed at the times

specified in the Service

Schedule. Only use the type of

plugs indicated. If the heat ratio

is less than required or the life

specified is not guaranteed, prob-

lems can arise.

ELECTRONIC

CONTROL UNITS

When the car is being used normal-

ly, special measures are not neces-

sary.

The following instructions must be

followed very carefully, however, if

you work on the electrical system or

in cases where emergency starting is

necessary:

– never disconnect the battery from

the electrical system while the

engine is running

– disconnect the battery from the

electrical system if you are recharg-

ing it. The modern battery chargers

can discharge voltage up to 20V

– never perform emergency start-

ups with a battery charger. Always

use an auxiliary battery

– be particularly careful when con-

necting the battery to the electrical

system. Make sure that the polarity

is correct and that the connection is

efficient

– do not connect or disconnect the

terminals of the electronic control

unit while the ignition key is at MAR

– do not check polarity through

sparking

– disconnect the electronic control

units if you are electrically welding

the car body. Remove the units if

temperatures exceed 80°C (special

operations on the bodywork, etc.).

Modifications or repairs

to the electrical system

carried out incorrectly

and without bearing the features

of the system in mind can cause

malfunctions with the risk of fire.