Parts for your 2007 Toyota Blade-Radiator cap

2007 Toyota Blade radiator cap — what it does and when to replace it

Yes, the 2007 Toyota Blade uses a radiator cap. Technical sources that cover the E150-series Blade/Auris platform confirm this: the Toyota Electronic Parts Catalog (Japan) lists a “Cap Sub-Assy, Radiator” for Blade models (with common listings such as 1.1 bar/108 kPa caps, e.g., 16401-series part numbers), and Toyota Service Information (TIS) procedures for the 2AZ-FE and 2GR-FE engines include an “On-Vehicle Inspection — Radiator Cap” pressure test. Major aftermarket catalogues in AU/NZ (e.g., Tridon and Gates) also specify a 1.1 bar cap for the 2007 Blade/Auris E15 platform. So it’s a relevant, serviceable part on this vehicle.

On the Blade, the radiator cap is a small but critical pressure valve for the cooling system. It seals the system so coolant can run at a higher pressure, which raises the boiling point and helps the engine keep its cool on hot days, steep climbs, or in stop–start traffic. The cap also has a vacuum valve that draws coolant back from the reservoir as the engine cools, preventing hose collapse and keeping the system topped up.

A tired cap can cause creeping temps, coolant loss into the overflow bottle, crusty deposits around the filler neck, or hoses that collapse after shutdown. Because the Blade is often a JDM import in AU/NZ, many owners aren’t aware the cap is a scheduled inspection item. A good workshop will pressure-test the cap (to its rated 108 kPa/1.1 bar) during routine servicing and replace it if it can’t hold spec.

Practical care tips under the bonnet:

• Only remove the cap when the engine is stone cold, use a rag and open it slowly.
• Check the rubber seals for cracks, the spring for good tension, and the filler neck for nicks or corrosion.
• Confirm the pressure rating on the cap matches the vehicle spec (typically 1.1 bar for the 2007 Blade).
• If you’re flushing coolant (Toyota Super Long Life Coolant, pink), it’s smart to fit a new quality cap at the same time.

As a rule of thumb, have the cap inspected annually or every 20,000 km, and replace it at the first sign of leakage, pressure-test failure, or as preventative maintenance around the 5–7 year/100,000–120,000 km mark. Whether the cap sits on the radiator neck or a remote filler (varies by engine), keeping it healthy is cheap insurance against overheating and head gasket grief.

FAQs

What pressure rating does a 2007 Toyota Blade radiator cap use?
Most 2007 Blade variants use a 1.1 bar (108 kPa) cap. Always match the rating stamped on the original or verify via a trusted catalogue or the Toyota parts listing. Running the wrong pressure can trigger overheating or coolant loss.

Where is the radiator cap located on a 2007 Toyota Blade?
Typically it’s on the radiator filler neck near the upper hose. Some engines use a remote filler/pressurised neck in the hose circuit. If you only see a simple plastic reservoir cap, the pressure cap will be on a metal filler neck elsewhere in the bay.

How often should the radiator cap be replaced?
Have it pressure-tested during regular services and replace it if it fails to hold spec, shows seal damage, or as a preventative step around 5–7 years or 100,000–120,000 km. Pairing a new cap with a coolant change is a tidy approach.