Skip to content Skip to navigation menu

Your Selected Vehicle

Brands

Show More Show Less

Price

Parts for your 2003 Ford Focus-Radiator

Sort by
Nulon Engine Oil Stop Leak 300ml - ESL
30%OFF

Nulon Engine Oil Stop Leak 300ml - ESL

$27.30
$39
Fitment Notes:
See More
Nulon Radiator Stop Leak 300mL - R50
30%OFF

Nulon Radiator Stop Leak 300mL - R50

$14.70
$21
Fitment Notes:
See More

Explore 4WD & Adventure

Nulon Diesel Injector Cleaner 300mL - DIC
30%OFF

Nulon Diesel Injector Cleaner 300mL - DIC

$23.80
$34
Fitment Notes:
See More
Nulon Octane Boost & Clean 300ml - OBC
30%OFF

Nulon Octane Boost & Clean 300ml - OBC

$28.70
$41
Fitment Notes:
See More
Penrite Radiator Flush Additive 375mL - ADRF375

Penrite Radiator Flush Additive 375mL - ADRF375

$27
Fitment Notes:
See More
Penrite Shift Eze 125ml - SHIFTEZE000125

Penrite Shift Eze 125ml - SHIFTEZE000125

$29
Fitment Notes:
See More
Repco Cooling System Flush 300ml

Repco Cooling System Flush 300ml

$16
Fitment Notes:
See More
K-SEAL Ultimate Head Gasket Repair - K3501

K-SEAL Ultimate Head Gasket Repair - K3501

$102
Fitment Notes:
See More
Lucas Heavy Duty Oil Stabilizer 946ml - 10001

Lucas Heavy Duty Oil Stabilizer 946ml - 10001

$40
Fitment Notes:
See More
Penrite Radiator Stop Leak 375mL - ADRSL375

Penrite Radiator Stop Leak 375mL - ADRSL375

$30
Fitment Notes:
See More
Repco Radiator Fin Straightener & Cleaner - RST18

Repco Radiator Fin Straightener & Cleaner - RST18

$20
Fitment Notes:
See More
Penrite Lifter and Tappet Fix 375ml - ADLTF375

Penrite Lifter and Tappet Fix 375ml - ADLTF375

$31
Fitment Notes:
See More
Rislone Rear Main Seal Repair 500ml - 44240

Rislone Rear Main Seal Repair 500ml - 44240

$38
Fitment Notes:
See More
Nulon Gearbox Treatment 125ml - G70
Clearance

Nulon Gearbox Treatment 125ml - G70

$6
Fitment Notes:
See More
Rislone Radiator Stop Leak 325mL - 41196

Rislone Radiator Stop Leak 325mL - 41196

$20
Fitment Notes:
See More
One Shot Radiator Stop Leak - 20050

One Shot Radiator Stop Leak - 20050

$9
Fitment Notes:
See More
Nulon Radiator Flush & Clean 300mL - R40
Clearance

Nulon Radiator Flush & Clean 300mL - R40

$18
Fitment Notes:
See More
GV Demineralised Water 2L - DEMIN-02L

GV Demineralised Water 2L - DEMIN-02L

$6
Fitment Notes:
See More
Rislone Aluminium Radiator Stop Leak 479g - 41186

Rislone Aluminium Radiator Stop Leak 479g - 41186

$32
Fitment Notes:
See More
Sealwell Coolant System Conditioner 2 Pack - T51012

Sealwell Coolant System Conditioner 2 Pack - T51012

$27
Fitment Notes:
See More
GV Demineralised Water 5L - DEMIN-05L

GV Demineralised Water 5L - DEMIN-05L

$12
Fitment Notes:
See More
Penrite Engine Boost+ 500ml - PSPEB0005
Clearance

Penrite Engine Boost+ 500ml - PSPEB0005

$10
Fitment Notes:
See More
Rislone Head Gasket Fix 680g - 41111

Rislone Head Gasket Fix 680g - 41111

$101
Fitment Notes:
See More
Holts Wondarweld Cooling System Repair 250ml - HREP0062A

Holts Wondarweld Cooling System Repair 250ml - HREP0062A

$23
Fitment Notes:
See More
Showing 1 - 39 of 107 products

Maintaining and Replacing the Radiator on Your 2003 Ford Focus

A radiator is indeed an essential component of your 2003 Ford Focus, playing a pivotal role in regulating your engine's temperature and ensuring it runs smoothly. Like many parts under the bonnet, the radiator can wear down over time, creating the need for periodic checks and maintenance. Here's a comprehensive guide on radiator upkeep and replacement for your Focus.

One of the first things you might notice if something's amiss with your radiator is your car's temperature gauge ticking upwards more than usual. It could be a sign that the radiator is not cooling efficiently, potentially due to clogs, corrosion, or leaks. It's always a good idea to conduct regular checks, particularly if you've noticed changes in your vehicle's performance or if it's been a while since your last inspection.

  • Regular Inspections: At the core of radiator maintenance is ensuring that the coolant (or antifreeze) levels are adequate. Pop the hood and check the coolant reservoir from time to time - a quick glance can be all it takes. If your Focus frequently overheats, it's possible the coolant needs a top-up or there's a leak somewhere.
  • Flush and Refill: It's recommended to flush and replace the coolant every 1-2 years, or according to your car's manual. Over time, contaminants can build up in the coolant, reducing its effectiveness. Draining the old fluid, flushing the system with water, and refilling with fresh coolant can keep your radiator functioning optimally.
  • Check for Leaks: Keep an eye out for coolant puddles under your car or a drop in coolant levels. Leaks can originate from the radiator itself or parts like hoses and clamps. If you suspect a leak, it's worth investigating further or having a professional do the honours.

If maintenance doesn't solve the issues, or if age has caught up with the radiator, replacement may be on the cards. Before diving into replacement, there are a few signs you might notice.

  1. Overheating: Often, a clear indicator that the radiator's days are numbered is if the engine frequently overheats even with regular maintenance.
  2. Rust and Corrosion: Rust on the radiator can suggest it's deteriorating. Eventually, corrosion can lead to leaks, making the engine cooling inefficient.
  3. Low Coolant Levels: Consistently low coolant levels without noticeable leaks might indicate an internal leak or inefficient cooling, suggesting the radiator may need replacement.

Replacing the radiator in your Ford Focus is a task you could tackle at home with the right tools and patience, or you might prefer leaving it to a professional mechanic. Here's what the process typically involves:

  • Preparation: Ensure the engine is cold before starting. Drain the radiator fluid into a container for proper disposal later. Lift the car using a jack and secure it on stands to access the bottom of the radiator.
  • Removing the Old Radiator: Disconnect the negative battery cable, followed by the fan and shroud. Detach the hoses and any ancillary components connected to the radiator, then remove mounting bolts. Carefully lift out the old radiator.
  • Installing the New Radiator: Position the new radiator into its slot, securing it with mounting bolts. Reconnect hoses, fan, shroud, and ancillary components. Once everything is in place, refill with fresh coolant.
  • Final Steps: Start the engine and let it reach its operating temperature. Check for leaks and ensure that the coolant circulates correctly. Keep an eye on the dashboard temperature gauge for anomalies.

A well-maintained or new radiator ensures your Focus runs efficiently without overheating risks. Proper maintenance or timely replacement can keep your car's heart happy and healthy, letting you drive with peace of mind knowing your engine is just as cool as you are on the road. Remember, a proactive approach to radiator care can save you time, hassle, and potential costly repairs down the line.