2012 SSANGYONG NEW REXTON engine

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Glow Plug
1. LAYOUT OF PRE-GLOW SYSTEM
The pre-glow system in D20DT engine has four glow plugs. And, the terminal T for pre-glow completion
signal is not used since the remote start function has been deleted.
Tightening torque
Engine ECUPre-glow Indicator
(Instrument cluster)
Ground
terminal
Pre-glow control
signal (ECU 113)IG1 power
terminal
Not available for the
vehicle without
remote start functionGlow plug
terminals
(#1~#4)
K-Line
(ECU 34)
G5 terminal
deleted
Battery
main
cable
Glow Plug Control Relay

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2. OPERATION
Glow plug is installed in the cylinder head. It enhances the cold starting performance and reduces the
exhaust gas during cold starting.
1. Pre-heating
2. Post-heating during engine running If normal communication with the ECU is established 2 seconds after the power is supplied to the IGN
terminal from the battery, the ECU supplies the battery voltage to glow plugs.
The post-heating controlled by ECU begins its operation after engine start The time for pre-heating is controlled by the ECU. -
The time for post-heating controlled by the ECU starts from engine start. This improves the idling
conditions and reduces the emission and noise. -
2) System Check
Glow Plug
Forced Shut-off of Relay
Check for short in each glow plug
Check for open due to over-voltage in each glow plug
Check for open to ground in glow plug -
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When the glow plug circuit is open to ground. -
1) Operation
Pre-
heatingCoolant
temperature
Operating time 31s 22s 19s 17s 14s 0s 0s
Operating
conditions- IGN: ON
- B+: below 15.2 VStop
conditions- Time-out
- IGN: OFF
- when engine cranking
Post-
heatingCoolant
temperature
Operating time 115s 80s 30s 19s 11s 11s 0s
Operating
conditions- after engine start Stop
conditions-Time-out
- Torque: 190/170Nm
- rpm: 2100/2050

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2. CONFIGURATION
1) Circuit Diagram
The engine ECU detects the operating conditions of cruise control system, and monitors the braking
performance, vehicle speed, road conditions and ESP system operation. If the engine ECU determines
that there are not any problem to drive in cruise control mode, the vehicle can be operated by cruise
switch signals (decelerating, accelerating, cruising).

Do not move the shift lever to Neutral position while driving with the cruise control turned on.
Otherwise, it may result in system malfunction or accidents.
Always be prepared to use the brake or accelerator pedal for safe driving while the cruise control
system is running.
The actual speed can be different from the set speed momentarily when driving on a uphill or
downhill. So, it is recommended to disable the cruise control function on a uphill or downhill. hen
driving on a steep hill use the engine brake and foot brake properly to protect the vehicle system
and for a safe driving.
Ensure that the safe distance is maintained and use the brake pedal if needed. 1.
2.
3.
4.
(1) Abnormal Cancellation of the Cruise Control
When the rapid deceleration is applied without braking.
When the rapid acceleration is applied without acceleration pedal intervention.
When the cruise control lever is faulty.
When the brake switch and the brake light switch input signal are implausible. 1.
2.
3.
When the cruise control function is cancelled abnormally or intermittent problems occur, stop the vehicle
and turn off the ignition switch and remove the key to reset the system. After a while, turn on the ignition
switch again to operate the cruise control system.

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Front view
Left viewRight view
Rear view
1. ENGINE LAYOUT

3. ENGINE COMPARTMENT LAYOUT
Do not work on the engine compartment while the engine, radiator, exhaust manifold, muffler or
catalytic converter is hot. Always turn the engine off and allow it to cool before starting the
maintenance.
Regularly check the engine oil level and add Ssangyong genuine engine oil if necessary.
Clean the dipstick with clean cloth so that any foreign materials cannot get into the engine. -
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Power steering fluid
reservoirBrake fluid reservoir
Fuse & relay
Engine oil dipstick
gaugeWasher fluid
reservoir cap Engine oil filler cap
Air cleaner
Operating vehicle with insuffi cient amount of oil can damage the engine. Make sure the engine oil
level is correct and add oil if necessary.
Coolant reservoir
Battery

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1) Service Interval
DescriptionDaily
inspectionWeekly
inspectionService interval
Engine oil & oil
filterInspection - EU Change every 20,000 km or 12 months
(The service interval should be
shortened under severe conditions)
General Change every 15,000 km or 12 months
(The service interval should be
shortened under severe conditions)
Coolant Inspection - Change every 200,000 km or 5 years
Air cleaner
element- Inspection Diesel EU Change every 20,000 km
(The service interval should
be shortened under severe
conditions)
General Clean every 7,500 km,
change every 15,000 km
(The service interval should
be shortened under severe
conditions)
Gasoline Clean every 15,000 km, replace every
60,000 km (The service interval should
be shortened under severe conditions)
Fuel filter - - EU Change every 40,000 km (Draining
water from fuel filter: whenever replacing
the engine oil)
General Change every 45,000 km (Draining
water from fuel filter: whenever replacing
the engine oil)

2) Specification and Capacity
Engine oilSpecification Quality class: Ssangyong genuine engine oil (Total Quartz INEO
ECS 5W 30, SK ZIC SY 5W 30) or oil Approved by MB Sheet
229.51
Capacity approx. 6.0 litter
Engine
coolantSpecification Ssangyong genuine coolant Anti-Freeze SYC-1025
Capacity approx. 8.5 litter
Severe condition
Frequent stop-and-go traffic, extended idling, short driving distance below 6 km, driving distance
below 16 km when the outside temperature remains below freezing
Driving in a hilly or mountainous terrain, sandy, or dusty area
High load driving such as trailer towing
Taxi, patrol service or delivery service (extended idling and excessive driving with low speed) -
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