2007 Hyundai Matrix Owner's Manual

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DO-IT-YOURSELF MAINTENANCE
21
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CHECKING THE BRAKES
G120A01A-AAT
! CAUTION:
Because brakes are essential to the safe operation of the car, it issuggested that they be checked and inspected by your Hyundai dealer. The brakes should bechecked and inspected for wear at those intervals specified in the vehicle maintenance schedule inSection 5.
WARNING (Diesel only):
Never work on injection system
with engine running or within 30 seconds after shutting off engine. High pressure pump, rail, injec-tors and high pressure pipes are subject to high pressure even af- ter the engine stopped. The fuel jetproduced by fuel leaks may cause serious injury, if it touch the body. People using pacemakers shouldnot move than 30cm closer to the ECU or wiring harness within the engine room while engine is run-ning, since the high currents in the Common Rail system produce considerable magnetic fields.
WARNING:
The cooling fan is controlled byengine coolant temperature andmay sometimes operate even when the engine is not running. Use extreme caution when workingnear the blades of the cooling fan so that you are not injured by a rotating fan blade. As the enginecoolant temperature decreases, the fan will automatically shut off. This is a normal condition.Fluid level should be within this range
3. If the transaxle fluid level is low, use a funnel to add transaxle fluid through the dipstick tube until the level reaches the "HOT" range. Do not overfill. C090A03FC

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22
G120C02A-AAT
Recommended Brake Fluid
Use only hydraulic brake fluid con- forming to DOT 3 or DOT 4 specifica-tions in your braking system. Follow the instructions printed on the con- tainer. G120D01A-AAT
To Check the Fluid Level
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G120B01A-AAT Checking the Brake Fluid Level
WARNING:
Use caution when handling brake fluid. It can damage your vision if it gets into your eyes. It will also damage your vehicle's paint ifspilled on it and not removed im- mediately. The level should be between the "MIN" and "MAX" marks on the side of thereservoir. If the level is at or below the "MIN" mark, carefully add fluid to bring it up to "MAX". Do not overfill.
HFC5005
Gasoline engine
G120D02FC
Diesel engine
The fluid level in the brake fluid reser- voir should be checked periodically.

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DO-IT-YOURSELF MAINTENANCE
23CHECKING THE CLUTCH FLUID
The system should be checked for leakage at the same time. Check tomake certain that the clutch fluid level is always between the "MAX" and "MIN" level markings on the fluid res-ervoir. Fill as required. Fluid loss indi- cates a leak in the clutch system which should be inspected and re-paired immediately. Consult your Hyundai dealer.
G130A01S-AAT To Check the Clutch Fluid
Gasoline engine
Diesel engine
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G120E02A-AAT
Adding Brake Fluid
WARNING:
Handle brake fluid carefully. It can damage your vision if it gets into your eyes. Use only DOT 3 or DOT4 specification fluid from a sealed container. Do not allow the fluid can or reservoir to remain openany longer than required. This will prevent entry of dirt and moisture which can damage the brake sys-tem and cause improper opera- tion. To add brake fluid, first wipe away any dirt then unscrew the fluid reser-voir cap. Slowly pour the recom- mended fluid into the reservoir. Do not overfill. Carefully replace the capon the reservoir and tighten. HFC5005
G120D02FC
The clutch fluid level in the master
cylinder should be checked when performing other under hood services.

6 DO-IT-YOURSELF MAINTENANCE
24
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G130B02A-AAT To Replace the Fluid Recommended brake fluid conform- ing to DOT 3 or DOT 4 specification should be used. The reservoir cap must be fully tightened to avoid con-tamination from foreign matter or moisture. NOTE: Do not allow any other liquids to contaminate the brake fluid. Sealdamage will result.
WARNING:
Use caution when handling brake fluid. It can damage your vision if you get it in your eyes. It will alsodamage your vehicle's paint if spilled on it and not removed im- mediately.
AIR CONDITIONING CARE
G140A01A-AAT
Keeping the Condenser Clean
The air conditioning condenser (and
engine radiator) should be checked periodically for accumulation of dirt, dead insects, leaves, etc. These caninterfere with maximum cooling effi- ciency. When removing such accu- mulations, brush or hose them awaycarefully to avoid bending the cooling fans. G140B01A-AAT
Checking the Air Conditioning Operation
1. Start the engine and let it run at a
fast idle for several minutes with the air conditioning set at the maxi-mum cold setting.
2. If the air coming out of the in-dash
vents is not cold, have the air con-ditioning system inspected by your Hyundai dealer. G140C01A-AAT
Lubrication
To lubricate the compressor and the
seals in the system, the air condition-ing should be run for at least 10 minutes each week. This is particu-larly important during cool weather when the air conditioning system is not otherwise in use. CAUTION:
Running the air conditioning sys-
tem for extended periods of timewith a low refrigerant level maydamage the compressor.
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6
DO-IT-YOURSELF MAINTENANCE
25CHANGING THE CLIMATE CONTROL AIR FILTER
G140D01S-GAT
Checking the Compressor DriveBelt
When the air conditioning is being
used regularly, the compressor drive belt tension should be checked at least once a month. To check the drive belt tension, press
down on the belt halfway between theengine crankshaft and compressor pulleys. Pressing with your finger, you should not be able to deflect this beltanymore than 8.0 mm. If you have the instruments to check it with a force of 98N (22 lb.), the deflectionshould be approx. 8.0 mm (0.315 in.). If the belt is too loose, have it ad- justed by your Hyundai dealer. CRANK PULLEY
G140D01A
A/C
TENSION PULLEY 8mm (0.315 in.)
B140E02FC-AAT
(In Front of Blower Unit)
The climate control air filter is located
in front of the blower unit behind the glove box.
It helps to decrease pollutants from
entering the car.
1. Open the glove box and remove the
adjusting pins on both sides of the glove box. 2. Remove the filter cover by pulling
upward the hooks of the filter cover.
HLC2096 KQNA020A

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26CHECKING THE FREEPLAY
G160A01A-GAT
Clutch pedal
G160A01E
6 ~ 13 mm (0.24 ~ 0.51 in.)
With the engine off, press lightly onthe clutch pedal until you feel a change in resistance. This is the clutch pedalfreeplay. The freeplay should be within the limits specified in the illustration. If it is not, have it inspected by yourHyundai dealer and adjusted or re- paired if necessary.
G150A01A-GAT
Steering wheel
G150A01FC
To check the steering wheel freeplay,
stop the car with the wheels pointed straight ahead and gently move the steering wheel back and forth. Use very light finger pressure and be sen-sitive to changes in resistance that mark the limits of the freeplay. If the freeplay is greater than specified, haveit inspected by your Hyundai dealer and adjusted or repaired if neces- sary. 30 mm (1.18 in.)
3. Replace the air conditioner filter with a new one.
4. Installation is the reverse order of disassembly.
CAUTION:
Be sure to install the air condi- tioner filter in the direction of thearrow sign. Otherwise, it may cause noise or deterioration.
! KQNA020B

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27
G170A01A-GAT
Brake pedal
HXGS508
3 ~ 8 mm (0.12 ~ 0.31 in.)
With the engine off, press down on the brake pedal several times to re-duce the vacuum in the brake booster.Then, using your hand, press downslowly on the brake pedal until you feel a change in resistance. This is the brake pedal freeplay. The freeplayshould be within the limits specified in the illustration. If it is not, have it inspected by your Hyundai dealer andadjusted or repaired if necessary.
Water Pump Pulley Alternator Pulley
Crankshaft Pulley 5~6 mm(0.2~0.24 in.)
HTB186
G190A01A-GAT Gasoline Engine Drive belts should be checked peri- odically for proper tension and ad-justed if necessary. At the same time, belts should be examined for cracks, wear, fraying or other evidence ofdeterioration and replaced if neces- sary. Belt routing should also be checked to be sure there is no interference between the belts and other parts of the engine. After a belt is replaced,the new belt should be adjusted again after two or three weeks to eliminate slack resulting from initial stretchingafter use.
G180A01A-GAT CHECKING BRAKE PEDAL CLEARANCE
G180A01L
45.1 mm (1.78 in.)
You need a helper to check the brake pedal clearance. With the engine run- ning, have your helper press down on the brake pedal several times andthen hold it down with a force of about 490N (50 kg, 110 lbs). The brake pedal clearance is the distance fromthe top surface of the brake pedal to the asphalt sheeting under the floor mat. If the brake pedal clearance isnot within the limits specified in the illustration, have it inspected by your Hyundai dealer and adjusted or re-paired if necessary. CHECKING DRIVE BELTS

6 DO-IT-YOURSELF MAINTENANCE
28CHECKING AND REPLACING FUSES
G200A01A-AAT
Replacing a Fusible Link
A fusible link will melt if the electrical
circuits from the battery are ever over- loaded, thus preventing damage to the entire wiring harness. (This could be caused by a short in the systemdrawing too much current.) If this ever happens, have a Hyundai dealer determine the cause, repair the sys-tem and replace the fusible link. The fusible links are located in a fuse box for easy inspection. Good
Bad
G200B01E-AAT
Replacing Accessory Fuses
HFC4010
CAUTION:
When replacing a fusible link, neveruse anything but a new fusible link with the same or lower amper- age rating. Never use a piece ofwire or a higher-rated fusible link. This could result in serious dam- age and create a fire hazard.
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G200A01FC
G190B01A
Power steeringpump
A/C comp.
Auto tentioner fully
Alternator
G190B01TB-GAT Diesel Engine
At the scheduled maintenance inspec-
tion, belts should be examined for cracks, wear, fraying or other evi- dence of deterioration and replaced if necessary.
Belt routing should also be checked
to be sure there is no interferencebetween the belts and other parts ofthe engine.
The fuse box for the lights and other
electrical accessories will be found inthe backside of the multi box located on the instrument panel to the left side of the driver.