gearbox Alfa Romeo 4C 2020 Owner handbook (in English)

Dear Customer,
We would like to congratulate and thank you for choosing an Alfa Romeo.
We have written this handbook to help you get to know all the features of your vehicle and use it in the best possible way.
Here you will find information, advice and important warnings regarding use of your car and how to obtain the best performance from the
technical features of your Alfa 4C.
You should read it right through before taking to the road for the first time to become familiar with the controls and above all with those
concerning brakes, steering and gearbox; at the same time, you can understand the behaviour of the car on different road surfaces.
This document also provides a description of special features and tips, as well as essential information for the safe driving, care and
maintenance of your Alfa 4C over time.
In the attached Warranty Booklet you will also find the description of the Services that Alfa Romeo offers to its customers, the Warranty
Certificate and the detail of the terms and conditions for maintaining its validity.
We are sure that these will help you to get in touch with and appreciate your new car and the service provided by
the people at Alfa Romeo.
Enjoy reading. Happy motoring!

43
Warning lights on panelMeaningWhat to do
TCT FAULT
The digital warning light switches on when the key is
turned to MAR-ON, but it should switch off after a few
seconds.
The digital warning light flashes (together with a message
in the display and an acoustic signal) to indicate that the
TCT is faulty.
The warning light or symbol switches on in the case of
transmission overheating, after a particularly demanding
use; engine performance is limited in this case.
DOOR OPEN
(where provided)
The digital warning light on the display switches on when
one or more doors are not properly shut. A buzzer will
sound when doors/tailgate are open and the car is moving.
BRAKE PAD WEAR
(where provided)
The digital warning light switches on when the front or
rear brake pads show signs of wear.
The associated message appears on the display.Replace the pad as soon as possible.
ALFA ROMEO CODE SYSTEM FAULT
(where provided)
The digital warning light (or symbol on the display) will
come on (on some versions, with a message on the
display) to indicate an Alfa Romeo CODE system or alarm
fault.Contact a dedicated
Alfa Romeo Dealership as soon as possible.
Contact a dedicated
Alfa Romeo Dealership as soon as possible.
If you need to start the engine in presence of a faulty
gearbox, follow the procedure shown in the
“TCT twin clutch transmission”, paragraph in the “Starting
the engine” section, “Starting and driving” chapter.

KNOWING THE INSTRUMENT PANEL TOOLS
46
Warning lights on panelMeaningWhat to do
GENERIC FAILURE INDICATION
(where provided)
The symbol appears on the display together with the
events shown below.
Engine oil pressure sensor
The symbol appears when a failure is detected in the
engine oil pressure sensor. The display shows the
dedicated message.In this case, go to a dedicated
Alfa Romeo Dealership as soon as possible to have the
fault corrected.
Clutch overheating message
The
symbol, together with a message on the display,
lights up to indicate clutch overheating.
If you continue driving, the symbol
will disappear and
the warning light will come on (on some versions
together with a message on the display) to indicate a
gearbox fault.
If the symbol comes on together with a message on
the display, limit the gear shifting and/or change the
condition of use, until normal operating conditions are
restored.
If the warning light lights up (a message will appear on
the display, on some versions) stop immediately, operate
the handbrake, switch off the engine and wait 5 minutes:
after this, normal transmission operating conditions will
be restored.
Should the transmission failure condition persist, contact
the dedicated Alfa Romeo Dealership.
FUEL CUT-OFF SYSTEM
The symbol and the corresponding message are shown on
the display in the following cases:
❒ fuel cut-off system intervention:
the yellow symbol lights up;
❒ fuel cut-off system failure:
the red symbol lights up.For reactivating the fuel cut-off system, refer to the
description in the
“Fuel cut-off system” section in the “In an emergency”
chapter. If it is not possible to restore the fuel supply,
contact a dedicated Alfa Romeo Dealership.
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STARTING AND DRIVING
70
TCT TWIN CLUTCH
TRANSMISSION
Alfa 4C features the TCT 6-speed twin
dry clutch transmission with steering
wheel controls. This is an advanced
technical solution which combines the
control of a manual gearbox, the
immediacy of a sequential system and
the convenience of being able to select an
automatic selection programme without
the slowdown of a conventional
automatic transmission.
With the key removed from the ignition,
the system will not implement any action
when the buttons on the transmission
control panel on the central tunnel fig. 43
are pressed, irrespective of the pressure
applied to the brake pedal.
43A0L0067
Therefore, the transmission will remain in
the condition that it was in when the
engine was switched off.
With car stationary and key at MAR
(ignition-operated electrical services
activated), the screen displays the gear
engaged and the active operating mode
(automatic = AUTO or manual = no
display).
OPERATING MODE
The transmission can operate in two
operating modes (except when the “Race”
mode is selected):
❒ the first manual type (MANUAL), in
which the driver decides directly when to
change gear;
❒ the second completely automatic
(AUTO), in which the system decides
when to change gear.
When the “Race” mode is selected, the
only allowed operating mode is MANUAL.
Manual operation (MANUAL)
In this operating mode, the driver is
responsible for choosing the best gear
ratio to engage, depending on the car
operating conditions.Use the “+” steering wheel stalk to
engage a higher gear, or the “–” stalk to
engage a lower gear (see the following
paragraph, “Steering wheel stalks”).
If the request is accepted by the system,
the display shows the new gear engaged.
If the request is not accepted by the
system, the display shows the gear
engaged before the request and emits an
acoustic signal.
If the gear change request may adversely
affect the correct operation of the engine
and the transmission, the system will not
allow it.
44A0L0146

STARTING AND DRIVING
72
The shifting up or down is only permitted
if the engine revs allow it.
STARTING THE ENGINE
To start the engine press the brake pedal:
the system engages neutral (N)
automatically.
After the starting procedure, 1st gear (1)
or reverse (R) can be engaged.
Irrespective of the mode selected
(AUTO/MANUAL), to engage 1st gear or
reverse (R), it is necessary to press the
brake pedal and press the 1 button on the
transmission control panel (or the “+”
steering wheel stalk) to engage 1st gear
or the R button to engage reverse.
When 1st gear is engaged, the system
sets itself to AUTO mode.
Neutral (N) can be engaged again by
pressing the N button with the brake
pedal pressed.
When the 1, N or R buttons are pressed
(or “+” steering wheel stalk is operated)
without pressing the brake pedal, no gear
change request is implemented by the
system.
IMPORTANT Reverse cannot be engaged
by pressing the “-” stalk on the steering
wheel.
Important notes
To start in presence of a gearbox fault
(see “Warning lights and messages”
paragraph in the “Knowing the instrument
panel” chapter), run the
“Delayed start-up” procedure:
turn the key to the AVV position for at
least 7 seconds with the brake depressed
and the engine will start.
The system will remain in “recovery”
condition.
If the engine does not start, contact a
dedicated Alfa Romeo Dealership.
When the driver’s door is opened, the
system activates the hydraulic
components so that they are prepared
for the subsequent engine starting.
MOVING THE CAR
The car can set off both in 1st gear and
reverse (R).
The gears can only be engaged by
pressing the brake pedal. If the brake
pedal is not depressed, the display will
show a dedicated message.It is not possible to set off in a higher gear
than 1st: if this is attempted, the display
shows a dedicated message.
When setting off on a medium-steep
incline, it is advisable to engage the
handbrake.
Engaging 1st gear
Proceed as follows:
❒ press the brake pedal;
❒ press the 1 button on the
transmission control panel;
❒ release the brake pedal and press the
accelerator pedal.
Engaging reverse (R)
Reverse (R) can only be engaged with car
stationary and brake pedal pressed.
Proceed as follows:
❒ press the brake pedal (car completely
stationary);
❒ press button R on the
gearbox panel;
❒ release the brake pedal and press the
accelerator pedal.
When reverse is engaged on some
versions, the system emits an acoustic
signal.
If the brake pedal is not depressed (and
the vehicle is stationary), the display will
show a dedicated message and the
system will automatically engage neutral
(N).

73
IMPORTANT With the car running, the
request is accepted and executed if the
car speed drops below 3 km/h within 3
seconds from the request: if the request
is not executed, the system will maintain
the gear engaged or, if the speed of the
car drops below 10 km/h, will put the
transmission in neutral (N) and the
manoeuvre will have to be repeated.
ENGAGING NEUTRAL (N)
With car stationary and ignition key at
MAR (irrespective of the condition of the
engine), neutral (N) can only be engaged
with the brake pedal pressed.
If the car is in motion, neutral (N) can
always be engaged, irrespective of the
pressure applied to the brake and
accelerator pedals.
The display will show the letter N
together with the active operating mode.To engage a speed from the neutral (N)
position, press button 1 on the gearbox
panel (it is not necessary to press the
brake pedal):
the gearbox will immediately choose the
correct gear according to the vehicle’s
speed.
With car stationary and ignition key at
MAR (irrespective of the condition of the
engine), 1
stgear can only be engaged with
the brake pedal pressed.
LAUNCH CONTROL
The “Launch Control” strategy permits
high-performance starting.
This strategy can be activated with
vehicle at a standstill, “Race” mode
selected and 1st gear engaged.
The sequence of operations to perform is
as follows:
❒ press the brake pedal and hold it
down;
❒ press the accelerator pedal and hold it
down;
❒ press the “–” paddle behind the
steering wheel;The car will start off at maximum
acceleration when the brake pedal is
released.
Keeping the accelerator pressed, the
system will automatically upshift once
the best engine speed has been achieved
for shifting gears.
78)
To abandon the strategy, simply interrupt
the above sequence of operations or
release the accelerator pedal.
DISPLAYED INFORMATION
When the key is turned to MAR-ON, after
about 1 second, the display shows the
transmission in neutral indication (N).
When driving, the display shows the gear
engaged and the active mode (AUTO or
MANUAL). The indications on the display
have the following meanings:
N = neutral;
1 = first gear;
2 = second gear
3 = third gear;
4 = fourth gear;
5 = fifth gear;
6 = sixth gear;
R = reverse.

STARTING AND DRIVING
74
The car always starts in neutral. When
1st gear is requested, the system forces
the selection of AUTO mode.
IMPORTANT If 10 seconds elapse with
the ignition key in the MAR position and
the display does not show the gear
engaged, turn the key to the STOP
position, wait for the display to go out
and then repeat the manoeuvre.
If the fault persists, contact a dedicated
Alfa Romeo Dealership.
ACOUSTIC SIGNAL
For safety reasons, there is a buzzer
warning when parking the car with the
gearbox in neutral (N) (the warning is
heard when the ignition key is turned to
the STOP position).
With the vehicle stationary, the engine
started and (1st) or (R) engaged, the
system activates the buzzer and
automatically put the gearbox in neutral
(N) when:
❒ the accelerator and/or the brake
pedal are not operated for at least 3
minutes;
❒ the brake pedal is pressed for longer
than 10 minutes;❒ the driver’s door is opened and the
accelerator pedal or the brake pedal are
not operated for at least 1.5 seconds;
❒ a fault is detected in the gearbox.
PARKING THE CAR
When parking and leaving the car,
proceed as follows:
❒ engage the gear (on a slope, engage
first gear if the vehicle is facing uphill or
reverse if it is facing downhill) and leave
the wheels steered;
❒ stop the engine and engage the
handbrake.
Block the wheels with a wedge or a stone
if the car is parked on a steep slope.
Wait until the indication of the gear
engaged disappears on the display
before releasing the brake pedal.
IMPORTANT: NEVER leave the car with
the transmission in neutral.
IMPORTANT NOTES
❒ With car stationary and gear engaged,
always keep the brake pedal pressed
until you decide to set off, then release
the brake and accelerate gradually.
❒ During prolonged stops with the
engine running, it is advisable to keep the
gearbox in neutral (N).❒ In order to safeguard the efficiency of
the clutch, do not use the accelerator to
keep the car stationary (e.g. when
stopped on an incline). Clutch overheating
could damage it:
use the brake pedal instead or the
handbrake and only press the accelerator
pedal when you wish to set off.
❒ If, with reverse gear (R) engaged, you
have to engage 1st gear or vice versa,
only do this when the car is completely
stationary and with the brake pedal
pressed.
❒ Although it is strongly discouraged, if
you are going downhill and for unknown
reasons you let the car move forward
with the gearbox in neutral (N), when
there is a request to engage a gear the
system will automatically engage the
best gear in relation to the speed of the
actual to allow the correct transmission
of the drive torque to the wheels;.

89
Protected deviceAmpereFuse
Headlight beam changeover switch (where provided) F09 5
One-tone horn F10 10
12V socket / cigar lighter F86 15
Door mirror defrosters F88 7.5
Dashboard fuse box fig. 114
Protected deviceAmpereFuse
Central locking F38 15
Two-way windscreen washer pump F43 20
+30 Driver side electric windows F47 20
+30 Passenger side electric windows F48 20
Engine compartment fuse box, fig. 116
90)If a fuse blows again, contact a dedicated Alfa Romeo Dealership.
91)Never replace a fuse with another with a higher amp rating; RISK OF FIRE.
92)If a general protective fuse (MAXI-FUSE, MEGA-FUSE, MIDI-FUSE) blows, contact a dedicated Alfa Romeo Dealership.
93)Before replacing a fuse, make sure the ignition key has been removed and that all the other services are switched off and/or disengaged.
94)Contact a dedicated Alfa Romeo Dealership if a safety system (airbags, brakes), transmission system (engine, gearbox) or steering system
general protection fuse blows.
IMPORTANT
10)Never replace a blown fuse with metal wires or other material.
11)If you need to wash the engine compartment, take care not to aim the jet of water directly at the fuse box.
WARNING

SERVICING AND CARE
104
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Thousands of km
Months
40
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 Visually inspect condition of the accessory drive belt(s)
Inspect the conditions of toothed timing drive belt
Check handbrake lever travel and adjust, if necessary
(or every 12 months)
Use the diagnosis socket to check supply/engine and
gearbox/transmission management system operation and engine oil degradation
Check and, if necessary, top up oil level for the
twin clutch transmission
Replace spark plugs (1)
Replace accessory drive belt/s
Replace toothed timing drive belt (2)
Replace air cleaner cartridge
Replace engine oil and oil filter (3)
Change brake fluid (or every 24 months)
(1) The following are essential to ensure correct operation and prevent serious damage to the engine: only use spark plugs of the same make and type
which are specially certified for such engines (see the information in the “Engine” paragraph in the “Technical specifications” chapter); strictly
comply with the spark plug replacement interval given in the Scheduled Servicing Plan; for spark plug replacement, it is advisable to contact a
dedicated Alfa Romeo Dealership.
(2) Irrespective of the mileage, the timing drive belt must be replaced every 4 years for heavy-duty use
(cold climates, town use, long periods of idling) or, in any case, every 5 years.
(3) The actual interval for changing the oil and replacing the engine oil filter depends on the car usage conditions and is signalled by the warning light
or message (where provided) or the instrument panel or, in any case, every 12 months.

105
PERIODIC CHECKS
Every 1,000 km or before long journeys,
check and, if necessary, top up the
following:
❒ engine coolant level;
❒ brake fluid;
❒ windscreen washer fluid;
❒ tyre inflation pressure and condition;
❒ operation of lighting system
(headlights, direction indicators, hazard
warning lights, etc.);
❒ operation of windscreen
washing/wiping system and
positioning/wear of wiper blade.
Every 3,000 km check and top up if
required: engine oil level.
IMPORTANT To find out the correct oil
quantity, always check using the dipstick.
Carry out the check with the vehicle
parked on level ground.
DEMANDING USE OF THE CAR
If the vehicle is used mainly under one of
the following conditions:
❒ trailer or caravan towing;
❒ dusty roads;
❒ short repeated distances (less than
7-8 km) and with external temperatures
below zero;
❒ engine often idling or driving long
distances at low speeds or long periods
of inactivity;
❒ you should perform the following
inspections more frequently than shown
in the Scheduled Servicing Plan:
❒ check front disk brake pad conditions
and wear;
❒ check cleanness of locks, bonnet and
boot and lever cleanness and lubrication;
❒ visually inspect condition of: engine,
gearbox, transmission, pipes and hoses
(exhaust - fuel system - brakes) and
rubber elements (gaiters - sleeves -
bushes - etc.);
❒ check battery charge and battery fluid
level (electrolyte);❒ visually inspect conditions of the
accessory drive belts;
❒ check and, if necessary, change engine
oil and replace oil filter;
❒ check air cleaner and replace it, if
required.
Using the car on track should be regarded
as an exception. The car has been
designed and produced for road use.