2017-2024 Mg Zs SUV Starting & Driving -> Automated Stop/Start ? Intelligent Fuel Saving System User Manual
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Starting & Driving -> Automated Stop/Start ? Intelligent Fuel Saving System for Your Mg Zs SUV First Generation (2017-2024)

STARTING & DRIVING  
Automated Stop/Start — Intelligent  
Fuel Saving System  
Engine Stop/Start has been incorporated into vehicles in  
an effort to reduce emissions. As the name suggests the  
system will allow the engine to be switched off when engine  
power is not required and then automatically be restarted  
when it is.  
This system defaults “on” with the START/STOP Switch  
in the ON/RUNNING position, the Main Switch Indicator  
Lamp is on (2 shown in fig ) and can be turned off by  
pressing the Main Switch (1 in the fig). The lamp in the  
switch will extinguish.  
4
Note: If vehicle is driving through deep water, please  
use Main Switch (1 in the fig) to shut down Stop/Start  
intelligent fuel saving system.  
1
2
Main Switch  
Main Switch Indicator Lamp  
197  
STARTING & DRIVING  
Automatic Shutdown of Engine  
•
•
•
The vehicle speed prior to stopping exceeded 6 mph  
(10 km/h).  
Although the engine is not running after an  
automatic stop, the system is prepared to  
auto start therefore the following actions  
could be dangerous:  
Vehicles with manual transmission: Gearbox must be in  
neutral and clutch pedal is released.  
On automatic derivatives if D is selected and the brake  
pedal pressed the engine will automatically stop. Shifting  
the gear selector to P/N and releasing the brake pedal  
will maintain the engine shutdown status.  
The driver’s door is closed and seat belt is secured.  
The bonnet is closed.  
1
Leaving the vehicle while the seat belt is  
still buckled, or there is a substitute seat  
belt buckle inserted.  
•
•
•
2
3
Carrying out work or checks in the engine  
compartment.  
Transmission in Drive with footbrake pressed. (auto  
only)  
Refuelling the vehicle, the START/STOP  
Switch must be switched “OFF” or the  
key removed from the switch.  
•
No demands on the steering. (auto only)  
4
Vehicles with automatic transmission:  
Leaving the vehicle while the gear  
selector is still in Drive position (R/D/S).  
Stop/Start Prohibited  
Start Stop will not operate if:  
•
•
•
•
Coolant temperature is below a preset limit .  
Front defrost is on.  
Engine Auto Stop Conditions  
Battery power is below a preset limit.  
The vacuum in the braking system is below a preset  
limit.  
Engine Auto Stop Conditions (Under Start Stop Control,  
Instrument Pack Indicator Lamp on)  
•
Vehicle is stationary, i.e. speed =0 mph or km/h.  
198  
STARTING & DRIVING  
•
•
Starter motor temperature is above a preset limit.  
Reverse gear selected or has been selected prior to  
parking.  
With the engine stopped in the automatic Stop/Start  
condition, the following actions will cause an automatic  
restart.  
•
•
Battery power falls below a preset limit.  
The vacuum in the braking system falls below a preset  
limit.  
•
•
Heating or cooling demand is too great.  
Vehicle is standing at excessive angles. (auto only)  
Automatic Engine Start  
•
•
The vehicle begins to move.  
Main Switch (1 in the fig) is pressed.  
With the engine stopped in the automatic Stop/Start  
condition, the following driver actions will cause an  
automatic restart, at this time the instrument pack  
indicator lamp is off.  
At this time the instrument pack indicator lamp  
extinguish to indicate engine start phase.  
will  
4
Start Inhibition  
•
Models with automatic transmission and in D position:  
release the brake pedal, or shift out of Drive position.  
Models with manual transmission: Transmission in  
Neutral position: press the clutch pedal or accelerator  
pedal.  
Note:  
When  
a
vehicle fitted with  
a
manual  
transmission is under automatic Stop/Start control  
and the engine is required to restart, but neutral  
position is not selected, the engine will restart when  
neutral position is selected.  
•
•
Vehicles with automatic transmission: Release the brake  
pedal with the shift lever in D position, or depress  
the brake/accelerator pedal with the shift lever in P/N  
position, or shift the lever to Drive(R/D/S) position.  
If any of the following conditions occur during automatic  
engine stop, the engine can only be restarted using the key,  
during this time the instrument pack indicator lamp will  
extinguish.  
•
The driver side seat belt is unbuckled.  
199  
STARTING & DRIVING  
•
•
The driver side door is open.  
Bonnet is open.  
Battery  
When charging the battery, starting the car  
At this time the instrument pack indicator lamp  
extinguish to indicate engine start phase.  
will  
with an external power source or supplying  
power from the vehicle, the negative cable  
must be connected to a suitable position on  
the vehicle body. Failure to do this will result  
in inaccurate battery power calculation  
which will effect automatic Stop/Start  
control.  
Stall Assist  
This function is available once the Stop/Start intelligent fuel  
saving system is enabled without any inhibiting conditions.  
If the engine cuts out, or is stalled whilst Stop/Start is  
enabled, selection of neutral and pressing the clutch pedal  
will automatically restart the engine.  
DO NOT disconnect the battery sensor  
unless absolutely necessary.  
removal  
Note: Extremely low battery power may result in the  
engine not re-starting automatically, or even using the  
key. In this instance, external power is needed to start  
the engine or the battery will require re-charging. See  
the section ‘Emergency Starting’ in the ‘Emergency  
Information’ Chapter.  
will result in inaccurate battery power  
calculation which will effect automatic  
Stop/Start control.  
Note: Failure to operate within the following  
guidelines will effect battery performance and  
automatic Stop/Start control:  
1
After power interruptions (battery disconnection)  
the automatic Stop/Start function will be  
suspended until the vehicle is left in a locked state  
200  
STARTING & DRIVING  
for at least 4 hours whilst the system relearns the  
state of the battery.  
Starter Inoperative,  
Capacity Loss  
Serious Battery  
In the case of serious battery power loss, automatic  
Stop/Start and key start may not be possible. In this case  
see the section ‘Emergency Starting’ in the ‘Emergency  
Information’ Chapter.  
2
3
If the vehicle is run continually for more than 100  
hours uninterrupted, the Stop/Start function will  
be suspended until the vehicle is left in a locked  
state for at least 4 hours whilst the system relearns  
the state of the battery.  
If the battery requires replacement, ALWAYS use a  
genuine part to the manufacturers specification.  
4
Failure to adhere to this can affect the automatic  
Stop/Start system.  
Automated Stop/Start Intelligent Fuel  
Saving System Failure  
In the event of a Stop/Start Intelligent Fuel Saving System  
failure, contact an MG Authorised Repairer.  
The Stop/Start Intelligent Fuel Saving System can be  
effected by faults within other vehicle systems - in the  
event of failure contact an MG Authorised Repairer.  
201  

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