Parts for your 2018 Toyota Avensis-Exhaust mount

2018 Toyota Avensis exhaust-mount: what it does and when to replace it

Based on Toyota’s own workshop literature for the Avensis T27 (2015–2018 facelift), the Toyota Electronic Parts Catalogue (EPC) listings for “Insulator, Exhaust Pipe Support,” and independent manuals such as the Haynes Avensis 2009–2018 guide, the 2018 Toyota Avensis is fitted with exhaust mounts (rubber exhaust hangers). So yes—an exhaust-mount is relevant to this model.

The exhaust-mount on a 2018 Toyota Avensis is a small but mighty bit of kit. These rubber insulators suspend the exhaust under the car, keeping it stable, aligned, and quiet while isolating vibration from the cabin. They let the system move a touch as it heats and cools, protect welds and joints from stress, and help stop knocks against the body, subframe, or suspension. Without healthy mounts, you’ll cop rattles, thumps over bumps, and a tailpipe that sits wonky—or worse, extra strain on the flex joint or turbo (on diesels).

As part of routine servicing, it’s smart to check the mounts any time the Avensis is on a hoist—think every 10,000–15,000 km or annually. Look for cracking, splits, perishing, elongation of the holes, sagging that lets the muffler sit low, bright witness marks where the system has been contacting the body, or a metallic rattle on start-up. A hanging or banging exhaust can be a fast track to a WOF or roadworthy fail because the system must be securely retained.

Replacement is straightforward: support the exhaust with a stand or jack and a timber block, spritz the pins with silicone spray, then lever the old rubbers off and slide new ones on. Swapping them in pairs keeps the system level. While you’re there, eyeball the bracketry, heat shields, and the flex section for cracks. Go for quality OEM-spec EPDM or high-temp rubber hangers, they’re inexpensive in Australia and New Zealand and typically last years, but coastal and high-heat use can shorten life. If the Avensis is used for heavy loads or rough roads, consider slightly firmer performance hangers to cut movement—just note they can pass a bit more vibration into the cabin.

Common symptoms that point to tired exhaust mounts include:

• Rattling, clunking, or droning that changes with engine speed or bumps
• Tailpipe sitting off-centre or lower than usual
• Rubber hangers visibly cracked, glazed, or stretched

Get them sorted early and the rest of the exhaust—cats, sensors, and mufflers—will thank you.

Popular questions about 2018 Toyota Avensis exhaust-mount

How many exhaust mounts does a 2018 Avensis have?
The Avensis typically uses multiple rubber hangers along the system—commonly four to six, depending on engine, body style, and exact exhaust layout. There’s usually one near the front pipe/catalyst area, one or two around the centre, and a couple at the rear muffler.

Variations exist between petrol and diesel models and wagon vs sedan, so a quick visual check under the vehicle (when cool and safely supported) is the best way to confirm.

How often should exhaust mounts be replaced?
There’s no fixed interval, replace on condition. Inspect at each service. In typical Aussie and Kiwi conditions, mounts can last 5–10 years, but heat, towing, gravel roads, and coastal air can age them faster.

If you notice sagging, cracks, or any banging/rattling from the exhaust, that’s your cue to change them sooner rather than later.

Can a home mechanic replace the exhaust mounts?
Yes, if they’re comfortable working under the car with proper stands and safety gear. Always let the exhaust cool completely and support it before removing any hangers to avoid stressing joints.

If the mounts are stubborn or the exhaust alignment needs correction, a workshop can sort it quickly during a routine service.