Engine Emission Control for Your Ford Focus 4 Door 2023

Engine Emission Control  
Do not switch the ignition off when your  
CATALYTIC CONVERTER - 1.0L  
ECOBOOST/1.5L  
vehicle is moving.  
Do not use leaded fuel.  
Avoid running out of fuel.  
ECOBOOST/1.5LTIVCT/2.3L  
ECOBOOST™  
Note: Resulting component damage may  
not be covered by the vehicle Warranty.  
WARNING: Do not park, idle or  
drive your vehicle on dry grass or other  
dry ground cover. The emission system  
heats up the engine compartment and  
exhaust system, creating the risk of fire.  
On-Board Diagnostics System  
Your vehicle has an on-board diagnostics  
system that monitors the emission control  
system. If any of the following warning  
lamps illuminate, this may indicate that  
the on-board diagnostics system has  
detected an emission control system  
malfunction.  
WARNING: The normal operating  
temperature of the exhaust system is  
very high. Never work around or attempt  
to repair any part of the exhaust system  
until it has cooled. Use special care when  
working around the catalytic converter.  
The catalytic converter heats up to a very  
high temperature after only a short  
period of engine operation and stays hot  
after the engine is switched off.  
WARNING: Exhaust leaks may  
result in entry of harmful and potentially  
lethal fumes into the passenger  
Continuing to drive your vehicle may cause  
reduced power or the engine to stop.  
Failure to respond to a warning lamp may  
cause component damage not covered by  
the vehicle Warranty. Have your vehicle  
checked as soon as possible.  
compartment. If you smell exhaust  
fumes inside your vehicle, have your  
vehicle inspected immediately. Do not  
drive if you smell exhaust fumes.  
Your vehicle has various emission control  
components and a catalytic converter that  
enables it to comply with applicable  
exhaust emission standards.  
GASOLINE PARTICULATE  
FILTER  
To avoid damaging the catalytic converter:  
WARNING: Do not park or idle your  
vehicle over dry leaves, dry grass or other  
combustible materials. The regeneration  
process creates very high exhaust gas  
temperatures and the exhaust will  
radiate a considerable amount of heat  
during and after regeneration and after  
you have switched the engine off. This is  
a potential fire hazard.  
Do not crank the engine for more than  
10 seconds at a time.  
Do not run the engine with a spark plug  
lead disconnected.  
Do not push-start or tow-start your  
vehicle. Use booster cables. See Jump  
Starting the Vehicle (page 390).  
223  
Focus (CGE) Vehicles Built From: 15-03-2021, CG3784en enGBR, Edition date: 202012, First-Printing  
Engine Emission Control  
To reduce the risk of causing damage to  
the gasoline particulate filter:  
To assist passive regeneration, we  
recommend that you make occasional  
journeys that allow you to:  
Do not crank the engine for more than  
10 seconds at a time.  
Drive at a varied range of conditions,  
including highway conditions for a  
minimum of 20 minutes.  
Do not push-start or tow-start your  
vehicle. Use booster cables.  
Avoid prolonged engine idling.  
Do not switch the ignition off when your  
vehicle is moving.  
Select a suitable gear to maintain  
engine speed between 1500 and 4000  
RPM.  
Do not ignore warning lamps, indicators  
or information messages.  
If the filter is saturated or is approaching  
saturation, a warning lamp illuminates or  
a message appears in the information  
display.  
Note: A warning lamp illuminates and a  
message appears in the information display  
on some vehicles.  
If you do not take action when a warning  
lamp illuminates or a message appears in  
the information display, you could cause  
damage not covered by the vehicle  
Warranty.  
Gasoline Particulate Filter  
Regeneration  
Particles in the exhaust gas collect in the  
gasoline particulate filter causing a gradual  
restriction over time. This restriction is  
removed through a regeneration process  
controlled by the engine control system.  
The regeneration process converts the  
particles in the exhaust gas into harmless  
gases.  
Regeneration occurs during normal driving,  
to varying degrees depending on how you  
drive. Passive regeneration occurs when  
you drive at moderate to high speed but if  
you generally drive short distances at low  
speed, the engine control system could  
actively raise the exhaust gas temperature  
to remove the particles that have collected  
in the filter to make sure that it continues  
to correctly operate.  
Gasoline Particulate Filter  
Warning Lamps and Indicators  
Malfunction indicator lamp.  
224  
Focus (CGE) Vehicles Built From: 15-03-2021, CG3784en enGBR, Edition date: 202012, First-Printing  
Engine Emission Control  
Gasoline Particulate Filter Information Messages  
Message  
Action  
Exhaust filter at limit Drive  
to clean now  
Drive at a varied range of conditions, including highway  
conditions for 20 minutes or until the message disap-  
pears.  
Avoid prolonged engine idling.  
Select a suitable gear to maintain engine speed  
between 1500 and 4000 RPM.  
Exhaust filter over limit  
Service now  
Drive at a moderate speed.  
Avoid heavy acceleration and deceleration.  
Have your vehicle checked as soon as possible.  
WARNING: Exhaust leaks may  
DIESEL PARTICULATE FILTER  
result in entry of harmful and potentially  
lethal fumes into the passenger  
compartment. If you smell exhaust  
fumes inside your vehicle, have your  
vehicle inspected immediately. Do not  
drive if you smell exhaust fumes.  
WARNING: Do not park or idle your  
vehicle over dry leaves, dry grass or other  
combustible materials. The regeneration  
process creates very high exhaust gas  
temperatures and the exhaust will  
radiate a considerable amount of heat  
during and after regeneration and after  
you have switched the engine off. This is  
a potential fire hazard.  
Your vehicle has various emission control  
components and a diesel particulate filter  
that enables it to comply with applicable  
exhaust emission standards. It filters  
harmful diesel particulates, for example  
soot from the exhaust gas.  
WARNING: The normal operating  
temperature of the exhaust system is  
very high. Never work around or attempt  
to repair any part of the exhaust system  
until it has cooled. Use special care when  
working around the diesel oxidation  
catalytic converter or the diesel  
To avoid damaging the diesel particulate  
filter:  
Do not crank the engine for more than  
10 seconds at a time.  
Do not push-start or tow-start your  
vehicle. Use booster cables. See Jump  
Starting the Vehicle (page 390).  
particulate filter. The diesel oxidation  
catalytic converter and the diesel  
particulate filter heat up to very high  
temperatures after only a short period  
of engine operation and remain hot after  
you switch the engine off.  
Do not switch the ignition off when your  
vehicle is moving.  
Do not ignore warning lamps or  
information messages regarding  
exhaust system cleaning and  
regeneration.  
225  
Focus (CGE) Vehicles Built From: 15-03-2021, CG3784en enGBR, Edition date: 202012, First-Printing  
Engine Emission Control  
Note: This could result in damage not  
covered by the vehicle Warranty.  
WARNING: The normal operating  
temperature of the exhaust system is  
very high. Never work around or attempt  
to repair any part of the exhaust system  
until it has cooled. Use special care when  
working around the diesel oxidation  
catalytic converter or the diesel  
On-Board Diagnostics System  
Your vehicle has an on-board diagnostics  
system that monitors the emission control  
system. If any of the following warning  
lamps illuminate, this indicates that the  
on-board diagnostics system has detected  
an emission control system malfunction.  
particulate filter. The diesel oxidation  
catalytic converter and the diesel  
particulate filter heat up to very high  
temperatures after only a short period  
of engine operation and remain hot after  
you switch the engine off.  
Engine coolant temperature  
warning lamp.  
Ignition warning lamp.  
The diesel particulate filter on your vehicle  
requires periodic regeneration to maintain  
correct operation. The emission control  
system automatically carries out this  
process. As soot gathers in the system it  
begins to restrict the filter. The soot that  
gathers inside the filter is cleaned in two  
different ways, passive regeneration and  
active regeneration. Both methods occur  
automatically and require no actions from  
the driver. During automatic regeneration,  
the system cleans the diesel particulate  
filter by oxidizing the soot. Cleaning  
happens during normal engine operating  
conditions at varying levels depending on  
driving conditions.  
Malfunction indicator lamp.  
Powertrain warning Lamp.  
Water in fuel warning lamp.  
If you continue to drive your vehicle with a  
warning lamp illuminated, the engine could  
stop without warning. This could result in  
damage not covered by the vehicle  
warranty. Have your vehicle checked as  
soon as possible.  
Diesel particulate filter warning  
lamp.  
E
Diesel Particulate Filter Automatic  
Regeneration  
If the diesel particulate filter is near or at  
saturation, a warning lamp or information  
message appears in the information  
display. Drive your vehicle in a manner to  
allow effective diesel particulate filter  
cleaning.  
The warning lamp continues to illuminate  
until the automatic regeneration process  
completes. Continue to drive your vehicle  
in a manner to allow effective diesel  
particulate filter cleaning until the warning  
lamp turns off.  
WARNING: Do not park or idle your  
vehicle over dry leaves, dry grass or other  
combustible materials. The regeneration  
process creates very high exhaust gas  
temperatures and the exhaust will  
radiate a considerable amount of heat  
during and after regeneration and after  
you have switched the engine off. This is  
a potential fire hazard.  
226  
Focus (CGE) Vehicles Built From: 15-03-2021, CG3784en enGBR, Edition date: 202012, First-Printing  
Engine Emission Control  
Failure to carry out regeneration when  
If you are not driving your vehicle in a  
manner that allows effective cleaning, a  
message may appear in the information  
display to instruct you to drive in a manner  
that allows automatic regeneration.  
The automatic regeneration process is  
most effective when you drive at a steady  
vehicle speed of 48 km/h (30 mph) or  
above for approximately 20 minutes. The  
frequency and duration of the regeneration  
process varies by how you drive your  
vehicle, the outside air temperature and  
altitude. Frequency varies between 160 km  
(100 mi) and 500 km (310 mi) and each  
regeneration process lasts between 10 and  
20 minutes.  
required could result in a clogged diesel  
particulate filter. If the diesel particulate  
filter fills beyond the regeneration  
threshold, the system disables the ability  
to carry out regeneration. This could result  
in damage not covered by the vehicle  
warranty.  
Where vehicle use meets any of the  
following conditions:  
Driving short distances.  
Prolonged engine idling.  
Frequently switching the engine on and  
off.  
High levels of acceleration and  
deceleration.  
Note: Changes in the engine or exhaust  
sound may be heard during the regeneration  
process.  
We recommend you assist the  
regeneration process by:  
Note: During regeneration at low speed or  
engine idle, you could smell a hot metallic  
odor and could notice a clicking metallic  
sound. This is due to the high temperatures  
reached during the regeneration process.  
This is normal.  
Avoiding prolonged engine idling.  
Drive your vehicle in a manner to allow  
effective cleaning. Drive at a steady  
vehicle speed of 48 km/h (30 mph) or  
above for approximately 20 minutes.  
If the soot load in the diesel  
particulate filter reaches a  
critical level, the malfunction  
indicator lamp illuminates with the diesel  
particulate filter warning message. A  
service regeneration must be performed  
to recover the particulate filter. Have your  
vehicle checked as soon as possible to  
prevent further damage.  
Automatic regeneration raises the exhaust  
temperature to eliminate the soot  
particles. During cleaning, soot particles  
are converted to harmless gasses. Once  
cleaned, the diesel particulate filter  
continues to trap harmful diesel particles.  
If you are driving your vehicle in a manner  
that allows effective cleaning, a message  
may appear in the information display to  
indicate automatic regeneration is in  
progress.  
227  
Focus (CGE) Vehicles Built From: 15-03-2021, CG3784en enGBR, Edition date: 202012, First-Printing