2018-2023 Mg HS SUV Starting & Driving User Manual
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Starting & Driving for Your Mg HS SUV First Generation (2018-2023

STARTING & DRIVING  
Note: In some individual situations, the malfunction  
indicator lamp in the instrument will illuminate in the  
process of automatic engine start. This occurs due to  
the low voltage during startup, not indicating actual  
faults. If the malfunction indicator lamp remains on  
after engine start-up, seek a local MG Authorised  
Repairer.  
this time, the Start-Stop system indicator lamp on the  
instrument pack extinguishes:  
The driver side seat belt is unbuckled.  
The driver's door is opened  
The bonnet is opened  
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.  
With the engine stopped in the automatic Stop-Start  
condition, the following actions will cause an automatic  
restart:  
Front defrost selected.  
Adaptive cruise control system is on.  
Activation of the air conditioner, and the temperature  
inside the vehicle does not meet the target value.  
Battery power falls below a preset limit.  
The vehicle begins to move.  
Battery  
When charging/discharging the battery,  
starting the car with an external power  
source or supplying power from the vehicle,  
the negative cable must be connected to  
vehicle body earth point, rather than the  
battery negative. Failure to do this will result  
in inaccurate battery power calculation  
which will effect the automatic engine start.  
The vacuum in the braking system falls below a preset  
limit.  
The Start-Stop main switch (2) is pressed.  
If any of the following occur after the engine is automatically  
stopped, the engine can only be manually started, at  
210  
STARTING & DRIVING  
Stop-Start Intelligent Fuel Saving System  
Failure  
DO NOT disconnect the battery sensor  
unless absolutely necessary. Removal  
will result in inaccurate battery power  
calculation which will effect the automatic  
engine start.  
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 Authorised MG Repairer.  
Failure to operate within the following guidelines will effect  
battery performance and automatic Start-Stop control:  
1
After power interruptions (battery disconnection) the  
automatic Start-Stop 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.  
Starter Inoperative,  
Capacity Loss  
Serious Battery  
4
In the case of serious battery power loss, automatic  
Stop-Start and key start may not be possible. In this case  
refer to the Emergency Information chapter, Emergency  
Starting section for further details.  
2
If the vehicle is run continually for more than 100  
hours uninterrupted, the Start-Stop 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.  
Note: DO NOT connect the jump battery negative  
cable to the battery negative!  
inaccurate battery power calculation which will effect  
the automatic engine start.  
It will result in  
3
If the battery requires replacement, ALWAYS use  
a genuine part to the manufacturers specification.  
Failure to adhere to this can affect the automatic  
Start-Stop system.  
211  

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