Parts for your 2019 Haval H6-Oil cap

2019 Haval H6 Oil Cap — Purpose, Care, and Replacement

Technical references confirm the 2019 Haval H6 is fitted with a conventional engine oil filler cap. The Haval H6 Owner’s Manual (MY2019, GWM) illustrates the cap in the engine-bay layout and directs owners to remove it when checking or topping up engine oil. GWM service literature for the turbocharged petrol engines used in this model (GW4C20B/GW4B15) also shows a standard screw-on cap, and dealer parts catalogues in Australia and New Zealand list the oil filler cap and its seal as serviceable items. So, the oil-cap is absolutely relevant to the 2019 H6.

On a 2019 Haval H6, the oil cap does more than just cover the hole. It seals the top of the engine to keep dust, moisture, and grit out of the oil, and it helps the crankcase ventilation system maintain the right pressure balance. A healthy cap and seal prevent oil mist from weeping onto the rocker cover and stop that hot-oil pong from sneaking into the cabin after a run under the bonnet.

As part of regular servicing, it’s worth giving the cap a quick once-over. Make sure it turns freely, seats squarely, and that the rubber seal isn’t flattened, perished, or cracked. A light wipe of clean engine oil on the seal before refitting helps it glide and seal nicely. Don’t wrench it—hand-tight to the stop or click is the go. If the cap cross-threads or never feels snug, replace it rather than forcing the issue.

Signs it’s time to replace the oil cap or seal include: visible cracks, a hardened or swollen O-ring, oil staining or misting around the filler area, a faint whistling at idle, or rough running caused by an air leak into the crankcase. Caps are inexpensive, and using a genuine or quality aftermarket part matched to your H6’s engine code is the safest play.

• Check the cap every service (typically each 10,000–15,000 km or 12 months, per your manual).
• Always clean around the filler before opening to keep dirt out.
• Never drive without the cap—oil can splash out and contaminants can get in. If it’s lost, shut the engine down and sort a proper replacement.

FAQs

Where is the oil cap on a 2019 Haval H6?

It sits on top of the engine’s rocker cover under the bonnet, usually marked with the oil can symbol. Look for a black plastic cap that turns a quarter-turn or screws off by hand.

Can the car be driven if the oil cap is missing or broken?

No. Driving without a cap risks oil loss, contamination, and poor running from an air leak. If the cap is missing or cracked, switch off, clean the area, and fit a correct replacement before heading off.

How often should the oil cap or seal be replaced?

There’s no fixed interval, replace on condition. Inspect at each service. If the seal is perished, the cap is loose, or there’s oil misting around the filler, fit a new cap or O-ring.