Parts for your 2004 Toyota Caldina-Oil cap

2004 Toyota Caldina oil-cap — purpose, care and when to replace

According to Toyota’s 2004 Caldina Owner’s Manual and the Toyota Electronic Parts Catalogue (EPC) for the ST246/ZZT241 series, the 2004 Toyota Caldina is fitted with an engine oil filler cap (often listed as the Oil Filler Cap Sub-Assembly, with a separate packing/gasket). Toyota workshop manuals for the 1ZZ-FE, 1AZ-FSE and 3S-GTE engines also depict and reference the cap on the cam/rocker cover. So yes—an oil-cap is absolutely relevant and used on this model.

On a 2004 Toyota Caldina, the oil-cap seals the top of the engine where oil is added. Its job is to keep dust and moisture out, stop oil mist from escaping, and maintain proper crankcase ventilation flow. A healthy cap and gasket help keep the engine bay tidy and the oil where it belongs.

As part of regular servicing, the cap deserves a quick once-over at every oil change. Under the bonnet, remove the cap when the engine is cool, then:

• Wipe the cap and the filler neck seat clean.
• Inspect the rubber packing/O-ring for flattening, hardening or cracks.
• Refit hand-tight only—snug until it seats