Parts for your 2010 Holden Captiva 5-Sump plug washers

2010 Holden Captiva 5 Sump Plug Washers

Technical sources indicate the 2010 Holden Captiva 5 does use a sump plug washer. The Holden CG Captiva Service Manual (Engine Mechanical – Engine Oil and Filter Change, 2010) calls up installing a new drain plug sealing washer during refit. The Holden CG Electronic Parts Catalogue (Group 1.700 – Oil Pan) lists a drain plug gasket for the Captiva 5’s engines (2.4L LE5 petrol and 2.0L Z20S1 diesel), commonly referenced as an aluminium crush washer around 14 x 20 x 1.5 mm. GM/ACDelco parts data for these engines also describe a crush-type sealing washer paired with an M14 drain plug. That means a washer is relevant and should be replaced at service time.

On the 2010 Captiva 5, the sump plug washer’s job is simple but critical: it deforms as the plug is torqued, filling microscopic gaps between the plug flange and the sump face to keep engine oil where it belongs. Because it crushes to seal, it’s considered single-use. Reusing a flattened washer can lead to weeping, drips on the driveway, or worse, gradual oil loss that’s easy to miss under the vehicle’s undertray.

As part of a routine oil service, it’s smart to fit a fresh quality aluminium (or copper) washer of the correct size every time the sump plug is removed. Clean the mating face on the sump and the plug head, fit the new washer, then tighten to the correct spec. Typical workshop data for the Captiva 5 suggests around 25 N·m for the 2.4 petrol and up to about 30 N·m for the 2.0 diesel, but always confirm the exact figure for the engine code on hand (LE5 or Z20S1) from the service information or under-bonnet decal where available. Over-tightening can distort the washer unevenly and risk damaging threads in the alloy sump.

Owners who keep a couple of spare washers with their oil and filter will find servicing more straightforward, and it’s a low-cost way to protect the sump threads and keep the Captiva tidy underneath. If there’s any sign of oil misting or a damp ring around the plug after a change, don’t chase it with extra grunt on the spanner—drop the oil, inspect the seating face, replace the washer, and torque correctly.

• Always replace the crush washer at every oil change.
• Use the correct size (commonly ~14 mm ID, 20 mm OD, 1.5 mm thick) to suit the M14 plug used on these engines.
• Torque to spec, avoid thread tape or sealant.
• Inspect the plug and sump face for nicks, replace the plug if marked.

What size sump plug washer does a 2010 Captiva 5 use?

Most Captiva 5 petrol and diesel variants use an aluminium crush washer around 14 mm internal diameter, 20 mm outer diameter, and 1.5 mm thick to suit an M14 drain plug. It’s wise to match by VIN/engine code or measure the old washer to be sure.

Can the old washer be reused?

It’s not recommended. The Captiva’s washer is a crush type designed to deform once. Reusing it risks small leaks, staining undertrays, and gradual oil loss. A new washer at each oil change is cheap insurance.

What’s the correct torque for the sump plug?

Typical guidance is about 25 N·m for the 2.4L petrol (LE5) and up to roughly 30 N·m for the 2.0L diesel (Z20S1). Always confirm against the service data for the exact engine, and never over-tighten—let the new washer do the sealing.