2021 SUZUKI JIMNY engine overheat

DRIVING TIPS
Driving on hills
Manual transmission
78RB04002
Automatic transmission
78RB04001
4-11
When driving on steep hills, the vehicle may begin to slow down and show a lack of power. If this happens, you should shift to a lower gear so that the engine will again be operating in its higher power range. Shift rapidly to prevent the vehicle from losing momentum. When driving down a hill, the engine should be used for braking by shifting to the next lower gear.
A WARNING
Do not hold the brake pedal down too long or too often while going down a steep or long hill. This could cause the brakes to overheat, resulting in reduced braking efficiency. Failure to take this precaution could result in loss of vehicle control.
NOTICE
When descending a downhill, Never turn the ignition key to "LOCK" posiM lion. Emission control system and automatic transmission damage may result.

INSPECTION AND MAINTENANCE
Drive belt
A WARNING
When the engine is running, keep hands, hair, clothing, tools, etc. away from the moving fan and drive belts.
Check that the drive belt tension is correct while the engine is stopped. If the belt is too loose, insufficient battery charging, engine overheating, poor air conditioning, or excessive belt wear can result. When you push the belt with your thumb midpoint between the pulleys, there should be a deflection according to the following chart.
The belts should also be examined to ensure that they are not damaged.
If you need to replace or adjust the belt have it done by a SUZUKI dealer.
6-23
(2) (4)
78RB07001
(1) Water pump (2) Generator
(3) Idler pulley
(4) Air conditioner compressor
Drive belt deflection (100 N (10 kg, 22 lbs) press)
(a) New: 4.8 -5.9 mm (0.19 -0.23 in.) Readjustment: 6.2 -7 .1 mm (0.24 -0.28 in.)
(b) New: 3.2 -4.1 mm (0.13 -0.16 in.) Readjustment: 4.4 -5.0 mm (0.17 -0.20 in.)
Engine oil and filter
Specified oil
Models for EU countries and Israel
< l:!W-JQ >
(1) < 0W-20 >
~< OW-16 > °C-30 -20 -10 0 10 20 30 40 °F -22 -4 14 32 50 68 86 104
78RB07002
( 1) Preferred
Check that the engine oil you use comes under the quality classification as listed below: • ACEA A1/81, A3/83, A3/84, AS/85 • API SL, SM, SN • ILSAC GF-3, GF-4, GF-5 Select the appropriate oil viscosity accord­ing to the above chart.

Refill with oil and oil leakage check
1) Pour oil through the filler hole and install the filler cap. For the approximate capacity of the oil, refer to "Recommended fuel / lubricants and capacities (approx.)" in "SPECIFI­CATIONS" section. 2) Start the engine and carefully check the oil filter and the drain plug for leakage. Run the engine at various speeds for at least 5 minutes. 3) Stop the engine and wait about 5 min­utes. Check the oil level again and add oil if necessary. Check for leakage again.
NOTICE
When replacing the oil filter, it is recommended that you use a genu­ine SUZUKI replacement filter. If you use an aftermarket filter, check that it is of equivalent quality and follow the manufacturer's instruc­tions. • Oil leakage from the periphery of the oil filter or drain plug indicate incorrect installation or gasket damage. If you find any leakage or are not sure that the filter has been properly tightened, have the vehi­cle inspected by a SUZUKI dealer.
Engine coolant
Selection of coolant
NOTICE
SUZUKI LLC: Super (Blue) coolant; This coolant is already diluted to the proper percentage. Do not dilute with distilled water additionally. Doing so may result in the possibility of freez­ing and/or overheating coolant.
To maintain optimum performance and durability of your engine, use SUZUKI gen­uine coolant or equivalent.
NOTE: If you use the engine coolant other than the SUZUKI LLC: Super (Blue) for replace­ment, follow the schedule of SUZUKI LLC: Standard (Green). To see the detail of the maintenance schedule, refer to "Periodic maintenance schedule" in this section.
This type of coolant is the best for cooling system for the following reasons: • The coolant helps maintain proper engine temperature. It gives proper protection against freez­ing and boiling. It gives proper protection against corro­sion and rust.
INSPECTION AND MAINTENANCE
Failure to use the proper coolant can dam­age your cooling system. Your SUZUKI dealer can help you select the proper cool­ant.
NOTICE
To avoid damaging your cooling sys­tem: Always use a high quality ethylene glycol base non-silicate type cool­ant diluted with distilled water at the correct mixture concentration. Check that the proper mix is 50/50 coolant to distilled water and in no case higher than 70/30. Concentra­tions greater than 70/30 coolant to distilled water will cause overheat­ing conditions. Do not use straight coolant nor plain water (except "SUZUKI LLC: Super {Blue)"). . • Do not add extra inhibitors or addi­tives. They may not be compatible with your cooling system. Do not mix different types of base coolants. Doing so may result in accelerated seal wear and/or the possibility of severe overheating and extensive engine/automatic transmission damage.
6-28

INSPECTION AND MAINTENANCE
NOTE: SUZUKI highly recommends the use of ECSTAR brand coolant. ECSTAR has been specially formulated for your SUZUKI product and contributes to the desired vehicle performance and ideal driving experience.
Coolant level check
Check the coolant level at the reservoir tank, not at the radiator. With the engine cool, the coolant level should be between "FULL" and "LOW" marks.
Adding coolant
,A WARNING
Swallowing engine coolant can cause severe injury or death. Inhaling cool­ant mist or vapors or getting coolant in your eyes could result in severe injury. • Do not drink antifreeze or coolant solution. If swallowed, do not induce vomiting. Immediately con­tact a poison control center or a physician. • Avoid inhaling coolant mist or hot vapors. If inhaled, remove to a fresh air area. (Continued)
6-29
,A WARNING
(Continued) • If coolant gets in the eyes, flush with water and seek medical atten­tion. Wash thoroughly after handling coolant. Keep engine coolant out of the reach of children and pets.
NOTICE
SUZUKI LLC: Super (Blue) coolant; This coolant is already diluted to the proper percentage. Do not dilute with distilled water additionally. Doing so may result in the possibility of freez­ing and/or overheating coolant.
NOTICE
SUZUKI LLC: Standard (Green) cool­ant; • The mixture you use should con­tain 50% concentration of anti­freeze. If the lowest ambient temperature in your area is expected lo be -35°C (-31'F) or below, use higher con­centrations up to 60% following the instructions on the antifreeze con­tainer.
78RB07005
If the coolant level is below "LOW" mark, coolant should be added. While the engine is cool, remove the reservoir tank cap and add coolant until the reservoir tank level reaches "FULL" mark. Never fill the reser­voir tank above "FULL" mark.
NOTICE
When putting the cap on the reser­voir tank, line up the mark on the cap and the mark on the tank. Failure to follow this can result in coolant leak­age.
Coolant replacement
Since special procedures are required, ask a SUZUKI dealer for this job.

INSPECTION AND MAINTENANCE
Bulb replacement
_A CAUTION
Light bulbs can be hot enough to burn your finger right after turning off lights. This is true especially for halogen headlight bulbs. Replace the bulbs after they become cool enough.
The headlight bulbs are filled with pressurized halogen gas. They can burst and injure you if they are hit or dropped. Handle them carefully. To avoid injury by sharp-edged parts of the body, wear gloves and a long-sleeved shirt when replacing light bulbs.
NOTICE
The oils from your skin may cause a halogen bulb to overheat and burst when the lights are on. Grasp a new bulb with a clean cloth.
NOTICE
Frequent bulb replacement indicates the need for an inspection of the elec­trical system. This should be carried out by a SUZUKI dealer.
6-47
Headlights
LED type
Since special procedures are required, it is recommended that you take your vehicle to a SUZUKI dealer for light replacement.
Halogen type
78RB07025
(1) Bulb
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(3) ~f I r-,.t:: l'1
Jlilt10or\01 ~o
"-" [l!l ,Q
78RB07026
1) Open the engine hood while the engine is stopped. Disconnect the coupler (2). Remove the sealing rubber (3) by pull­ing the grip (4).
78RB07027
2) Push the retaining spring (5) forward and unhook it. Then remove the bulb. Install a new bulb in the reverse order of removal.

EMERGENCY SERVICE
EMERGENCY SERVICE
Tyre changing tool .............................................................. 7-1
CJ~
Jacking instructions ........................................................... 7-1
Jump-starting instructions ................................................. 7-5
Towing your vehicle (recreational towing) ....................... 7-6
Engine trouble: Starter does not operate ......................... 7-10
Engine trouble: Does not start ........................................... 7-10
Engine trouble: Overheating .............................................. 7-10
·. ~ -
60G411

Engine trouble: Starter does
not operate
1) Try turning the ignition switch to "START" position with the headlights turned on to determine the lead-acid battery condition. If the headlights go excessively dim or go off, it usually means that either the lead-acid battery is discharged or the battery terminal contact is poor. Recharge the lead-acid battery or correct battery terminal con­tact as necessary. 2) If the headlights remain bright, check the fuses. If the reason for failure of the starter is not obvious, there may be a major electrical problem. Have the vehi­cle inspected by a SUZUKI dealer.
Engine trouble: Does not start
Make sure that your vehicle has enough · fuel and battery. If the engine does not start under very cold condition, press the accelerator pedal all the way to the fioor and hold it while crank­ing the engine. Refer to "Starting engine" in operating your vehicle section. If the engine still does not start have your vehicle inspected at a SUZUKI dealer. Do not operate the starter motor for more than 12 seconds.
EMERGENCY SERVICE
Engine trouble: Overheating
The engine could overheat temporarily under severe driving conditions. If the high engine coolant temperature warning light comes on as overheating or the engine coolant temperature gauge indicates over­heating during driving:
1) Turn off the air conditioner. 2) Take the vehicle to a safe place and park. 3) Run the engine at a normal idle speed for a few minutes until the high engine coolant temperature warning light goes off or the indicator is within the normal, acceptable temperature range between "H" and "C".
A WARNING
If you see or hear escaping steam, stop the vehicle in a safe place and immediately turn off the engine to cool it. Do not open the hood when steam is present. When the steam can no longer be seen or heard, open the hood to see if the coolant is still boiling. If it is, you must wait until it stops boiling before you proceed.
7-10

EMERGENCY SERVICE
If the high engine coolant temperature warning light does not go off or the tem­perature indication does not come down to within the normal, acceptable range:
1) Turn off the engine and check that the water pump belt and pulleys are not damaged or slipping. If any abnormality is found, correct it. 2) Check the coolant level in the reservoir. If it is found to be lower than "LOW" line, check radiator, water pump, radia­tor hoses and heater hoses for leakage. If leakage that may cause overheating is found, do not run the engine until these problems have been corrected. 3) If leakage is not found, carefully add coolant to the reservoir and then the radiator, if necessary. (Refer to "Engine coolant" in "INSPECTION AND MAIN­TENANCE" section.)
NOTE: If engine overheats and you are not sure what to do, contact a SUZUKI dealer.
7-11
650614
A WARNING
• It is hazardous to remove the radia­tor cap when the water temperature is high, because scalding fluid and steam may be blown out under pressure. The cap should only be taken off when the coolant tem­perature has lowered. To help prevent personal injury, keep hands, tools and clothing away from the engine cooling fan and air-conditioner fan. These elec­tric fans can automatically turn on without warning.