Parts for your 2008 Holden Captiva 7-Head gasket

2008 Holden Captiva 7 head gasket – what it is and when to sort it

Based on technical sources including the Holden Captiva CG (MY07–09) Service Manual, GM Service Information (SI) for the 3.2‑litre LY7 High Feature V6, and VM Motori RA420/VCDi diesel documentation, the 2008 Holden Captiva 7 is fitted with a cylinder head gasket. Those references specify a multi‑layer steel (MLS) head gasket and torque‑to‑yield head bolts for both petrol and diesel variants, so the head gasket is absolutely relevant on this model.

On the Captiva 7, the head gasket seals the join between the engine block and the cylinder head. Its job is to keep three worlds separate: high‑pressure combustion, engine oil, and coolant. The MLS design handles thermal expansion and clamping force while coping with Aussie and Kiwi heat, towing, and long‑distance kilometres. When it’s healthy, combustion stays in the chambers, coolant stays in the galleries, and oil stays where it should—no mixing, no leaks, no drama under the bonnet.

If a head gasket starts to fail, the Captiva may show tell‑tale signs:

• Overheating, pressurised top hose, or bubbling in the surge tank
• Sweet‑smelling white exhaust smoke after warm‑up
• Milky residue on the oil cap or dipstick, or unexplained coolant loss
• Rough cold starts, misfires, or low compression on one cylinder
• Heater going cold/hot intermittently under load

There’s no scheduled “maintenance” replacement for a head gasket